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          From Wikipedia, the free encyclopedia\n
          \n
          Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).\n
          \n
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          \n
          ### Rules\n
          \n
          - Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.\n
          - No misinformation\n
          - No NSFW content\n
          - No hate speech, bigotry, etc\n
          \n
          ### Related Communities\n
          \n
          - [!opensource@lemmy.ml](https://lemmy.ml/c/opensource)\n
          - [!libre_culture@lemmy.ml](https://lemmy.ml/c/libre_culture)\n
          - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
          - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
          \n
          Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
          """
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      +slug: "need-help-fixing-a-hardware-problem-using-linux"
      +title: "need help fixing a hardware problem using linux"
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      +body: """
        so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
        \n
        I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
        \n
        I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
        \n
        the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
        \n
        [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
        \n
        would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
        \n
        at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
        \n
        so, bad luck - faulty screen or backlight or RAM or something, right?\n
        \n
        except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
        \n
        if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
        \n
        what I’ve tried:\n
        \n
        - different USB Type-C chargers\n
        - fresh paste on CPU, clean vent\n
        - latest firmware, tried downgrading, no change\n
        - memtest passed twice on thorough, all clear\n
        - internal diagnostics also\n
        - it never froze or crashed\n
        - screenshot during glitches doesn’t contain them\n
        - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
        - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
        - pressing, jerking, wiggling of the internal display cable/connector, no change\n
        - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
        - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
        \n
        at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
        \n
        so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
        \n
        seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
        \n
        edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
        """
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        date: 2024-02-24 19:46:07.0 +01:00
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    +body: """
      Awesome breakdown and troubleshooting so far!\n
      \n
      I wonder if the previous owner removed the battery because of this issue in the first place.\n
      \n
      The fact that the flickering is full-width bands that don’t appear in screenshots indicates to me that this is a signal issue to or through the display.\n
      \n
      An important variable to pay attention to and experiment with is the display’s refresh rate. It’s possible that is what is changing with and without the battery, though you most likely would have noticed if that were the case.\n
      \n
      Since the problem varies based on battery presence, it would be appropriate to source a replacement battery - especially if you purchased a cheap aftermarket battery. The real deal for your system is available for $80USD from Parts People compared to $20-$40USD for low quality Amazon junk.\n
      \n
      After the battery, my main suspicion is a fault on the mainboard leaking voltage from the battery circuit and affecting the display signals. Even without the infrequency of the problem that would be tricky to isolate and remedy.\n
      \n
      Overall, this screams hardware issue and I don’t believe you will find a software trace of it. The problem is not visible in screenshots, so the software environment does not know that it exists.
      """
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          From Wikipedia, the free encyclopedia\n
          \n
          Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).\n
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          ### Rules\n
          \n
          - Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.\n
          - No misinformation\n
          - No NSFW content\n
          - No hate speech, bigotry, etc\n
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          ### Related Communities\n
          \n
          - [!opensource@lemmy.ml](https://lemmy.ml/c/opensource)\n
          - [!libre_culture@lemmy.ml](https://lemmy.ml/c/libre_culture)\n
          - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
          - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
          \n
          Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
          """
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        so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
        \n
        I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
        \n
        I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
        \n
        the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
        \n
        [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
        \n
        would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
        \n
        at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
        \n
        so, bad luck - faulty screen or backlight or RAM or something, right?\n
        \n
        except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
        \n
        if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
        \n
        what I’ve tried:\n
        \n
        - different USB Type-C chargers\n
        - fresh paste on CPU, clean vent\n
        - latest firmware, tried downgrading, no change\n
        - memtest passed twice on thorough, all clear\n
        - internal diagnostics also\n
        - it never froze or crashed\n
        - screenshot during glitches doesn’t contain them\n
        - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
        - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
        - pressing, jerking, wiggling of the internal display cable/connector, no change\n
        - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
        - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
        \n
        at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
        \n
        so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
        \n
        seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
        \n
        edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
        """
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    +magazine: Proxies\__CG__\App\Entity\Magazine {#2378 …2}
    +image: null
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    +body: """
      Awesome breakdown and troubleshooting so far!\n
      \n
      I wonder if the previous owner removed the battery because of this issue in the first place.\n
      \n
      The fact that the flickering is full-width bands that don’t appear in screenshots indicates to me that this is a signal issue to or through the display.\n
      \n
      An important variable to pay attention to and experiment with is the display’s refresh rate. It’s possible that is what is changing with and without the battery, though you most likely would have noticed if that were the case.\n
      \n
      Since the problem varies based on battery presence, it would be appropriate to source a replacement battery - especially if you purchased a cheap aftermarket battery. The real deal for your system is available for $80USD from Parts People compared to $20-$40USD for low quality Amazon junk.\n
      \n
      After the battery, my main suspicion is a fault on the mainboard leaking voltage from the battery circuit and affecting the display signals. Even without the infrequency of the problem that would be tricky to isolate and remedy.\n
      \n
      Overall, this screams hardware issue and I don’t believe you will find a software trace of it. The problem is not visible in screenshots, so the software environment does not know that it exists.
      """
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App\Twig\Components\MagazineInlineComponent {#2697
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    +title: "linux"
    +description: """
      From Wikipedia, the free encyclopedia\n
      \n
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      - [!libre_culture@lemmy.ml](https://lemmy.ml/c/libre_culture)\n
      - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
      - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
      \n
      Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
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        - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
        - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
        \n
        Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
        """
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    +slug: "need-help-fixing-a-hardware-problem-using-linux"
    +title: "need help fixing a hardware problem using linux"
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    +body: """
      so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
      \n
      I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
      \n
      I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
      \n
      the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
      \n
      [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
      \n
      would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
      \n
      at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
      \n
      so, bad luck - faulty screen or backlight or RAM or something, right?\n
      \n
      except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
      \n
      if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
      \n
      what I’ve tried:\n
      \n
      - different USB Type-C chargers\n
      - fresh paste on CPU, clean vent\n
      - latest firmware, tried downgrading, no change\n
      - memtest passed twice on thorough, all clear\n
      - internal diagnostics also\n
      - it never froze or crashed\n
      - screenshot during glitches doesn’t contain them\n
      - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
      - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
      - pressing, jerking, wiggling of the internal display cable/connector, no change\n
      - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
      - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
      \n
      at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
      \n
      so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
      \n
      seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
      \n
      edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
      """
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App\Twig\Components\EntryInlineComponent {#2760
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        From Wikipedia, the free encyclopedia\n
        \n
        Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).\n
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        Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word “Linux” in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.\n
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        - Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.\n
        - No misinformation\n
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        - No hate speech, bigotry, etc\n
        \n
        ### Related Communities\n
        \n
        - [!opensource@lemmy.ml](https://lemmy.ml/c/opensource)\n
        - [!libre_culture@lemmy.ml](https://lemmy.ml/c/libre_culture)\n
        - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
        - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
        \n
        Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
        """
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    +slug: "need-help-fixing-a-hardware-problem-using-linux"
    +title: "need help fixing a hardware problem using linux"
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    +body: """
      so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
      \n
      I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
      \n
      I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
      \n
      the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
      \n
      [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
      \n
      would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
      \n
      at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
      \n
      so, bad luck - faulty screen or backlight or RAM or something, right?\n
      \n
      except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
      \n
      if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
      \n
      what I’ve tried:\n
      \n
      - different USB Type-C chargers\n
      - fresh paste on CPU, clean vent\n
      - latest firmware, tried downgrading, no change\n
      - memtest passed twice on thorough, all clear\n
      - internal diagnostics also\n
      - it never froze or crashed\n
      - screenshot during glitches doesn’t contain them\n
      - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
      - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
      - pressing, jerking, wiggling of the internal display cable/connector, no change\n
      - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
      - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
      \n
      at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
      \n
      so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
      \n
      seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
      \n
      edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
      """
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          ### Related Communities\n
          \n
          - [!opensource@lemmy.ml](https://lemmy.ml/c/opensource)\n
          - [!libre_culture@lemmy.ml](https://lemmy.ml/c/libre_culture)\n
          - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
          - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
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          Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
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      +slug: "need-help-fixing-a-hardware-problem-using-linux"
      +title: "need help fixing a hardware problem using linux"
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      +body: """
        so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
        \n
        I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
        \n
        I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
        \n
        the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
        \n
        [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
        \n
        would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
        \n
        at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
        \n
        so, bad luck - faulty screen or backlight or RAM or something, right?\n
        \n
        except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
        \n
        if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
        \n
        what I’ve tried:\n
        \n
        - different USB Type-C chargers\n
        - fresh paste on CPU, clean vent\n
        - latest firmware, tried downgrading, no change\n
        - memtest passed twice on thorough, all clear\n
        - internal diagnostics also\n
        - it never froze or crashed\n
        - screenshot during glitches doesn’t contain them\n
        - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
        - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
        - pressing, jerking, wiggling of the internal display cable/connector, no change\n
        - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
        - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
        \n
        at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
        \n
        so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
        \n
        seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
        \n
        edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
        """
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    +magazine: Proxies\__CG__\App\Entity\Magazine {#2378 …2}
    +image: null
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    +body: """
      Awesome breakdown and troubleshooting so far!\n
      \n
      I wonder if the previous owner removed the battery because of this issue in the first place.\n
      \n
      The fact that the flickering is full-width bands that don’t appear in screenshots indicates to me that this is a signal issue to or through the display.\n
      \n
      An important variable to pay attention to and experiment with is the display’s refresh rate. It’s possible that is what is changing with and without the battery, though you most likely would have noticed if that were the case.\n
      \n
      Since the problem varies based on battery presence, it would be appropriate to source a replacement battery - especially if you purchased a cheap aftermarket battery. The real deal for your system is available for $80USD from Parts People compared to $20-$40USD for low quality Amazon junk.\n
      \n
      After the battery, my main suspicion is a fault on the mainboard leaking voltage from the battery circuit and affecting the display signals. Even without the infrequency of the problem that would be tricky to isolate and remedy.\n
      \n
      Overall, this screams hardware issue and I don’t believe you will find a software trace of it. The problem is not visible in screenshots, so the software environment does not know that it exists.
      """
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          From Wikipedia, the free encyclopedia\n
          \n
          Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).\n
          \n
          Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word “Linux” in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.\n
          \n
          ### Rules\n
          \n
          - Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.\n
          - No misinformation\n
          - No NSFW content\n
          - No hate speech, bigotry, etc\n
          \n
          ### Related Communities\n
          \n
          - [!opensource@lemmy.ml](https://lemmy.ml/c/opensource)\n
          - [!libre_culture@lemmy.ml](https://lemmy.ml/c/libre_culture)\n
          - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
          - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
          \n
          Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
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        so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
        \n
        I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
        \n
        I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
        \n
        the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
        \n
        [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
        \n
        would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
        \n
        at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
        \n
        so, bad luck - faulty screen or backlight or RAM or something, right?\n
        \n
        except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
        \n
        if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
        \n
        what I’ve tried:\n
        \n
        - different USB Type-C chargers\n
        - fresh paste on CPU, clean vent\n
        - latest firmware, tried downgrading, no change\n
        - memtest passed twice on thorough, all clear\n
        - internal diagnostics also\n
        - it never froze or crashed\n
        - screenshot during glitches doesn’t contain them\n
        - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
        - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
        - pressing, jerking, wiggling of the internal display cable/connector, no change\n
        - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
        - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
        \n
        at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
        \n
        so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
        \n
        seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
        \n
        edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
        """
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    +image: null
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    +body: """
      Awesome breakdown and troubleshooting so far!\n
      \n
      I wonder if the previous owner removed the battery because of this issue in the first place.\n
      \n
      The fact that the flickering is full-width bands that don’t appear in screenshots indicates to me that this is a signal issue to or through the display.\n
      \n
      An important variable to pay attention to and experiment with is the display’s refresh rate. It’s possible that is what is changing with and without the battery, though you most likely would have noticed if that were the case.\n
      \n
      Since the problem varies based on battery presence, it would be appropriate to source a replacement battery - especially if you purchased a cheap aftermarket battery. The real deal for your system is available for $80USD from Parts People compared to $20-$40USD for low quality Amazon junk.\n
      \n
      After the battery, my main suspicion is a fault on the mainboard leaking voltage from the battery circuit and affecting the display signals. Even without the infrequency of the problem that would be tricky to isolate and remedy.\n
      \n
      Overall, this screams hardware issue and I don’t believe you will find a software trace of it. The problem is not visible in screenshots, so the software environment does not know that it exists.
      """
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          Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
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      +body: """
        so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
        \n
        I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
        \n
        I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
        \n
        the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
        \n
        [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
        \n
        would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
        \n
        at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
        \n
        so, bad luck - faulty screen or backlight or RAM or something, right?\n
        \n
        except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
        \n
        if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
        \n
        what I’ve tried:\n
        \n
        - different USB Type-C chargers\n
        - fresh paste on CPU, clean vent\n
        - latest firmware, tried downgrading, no change\n
        - memtest passed twice on thorough, all clear\n
        - internal diagnostics also\n
        - it never froze or crashed\n
        - screenshot during glitches doesn’t contain them\n
        - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
        - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
        - pressing, jerking, wiggling of the internal display cable/connector, no change\n
        - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
        - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
        \n
        at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
        \n
        so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
        \n
        seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
        \n
        edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
        """
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    +body: """
      Awesome breakdown and troubleshooting so far!\n
      \n
      I wonder if the previous owner removed the battery because of this issue in the first place.\n
      \n
      The fact that the flickering is full-width bands that don’t appear in screenshots indicates to me that this is a signal issue to or through the display.\n
      \n
      An important variable to pay attention to and experiment with is the display’s refresh rate. It’s possible that is what is changing with and without the battery, though you most likely would have noticed if that were the case.\n
      \n
      Since the problem varies based on battery presence, it would be appropriate to source a replacement battery - especially if you purchased a cheap aftermarket battery. The real deal for your system is available for $80USD from Parts People compared to $20-$40USD for low quality Amazon junk.\n
      \n
      After the battery, my main suspicion is a fault on the mainboard leaking voltage from the battery circuit and affecting the display signals. Even without the infrequency of the problem that would be tricky to isolate and remedy.\n
      \n
      Overall, this screams hardware issue and I don’t believe you will find a software trace of it. The problem is not visible in screenshots, so the software environment does not know that it exists.
      """
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          - [!libre_culture@lemmy.ml](https://lemmy.ml/c/libre_culture)\n
          - [!technology@lemmy.ml](https://lemmy.ml/c/technology)\n
          - [!libre_hardware@lemmy.ml](https://lemmy.ml/c/libre_hardware)\n
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          Community icon by [Alpár-Etele Méder](https://www.iconfinder.com/pocike), licensed under [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/)
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      +body: """
        so, I have a weird problem with a Dell Latitude 5285, that’s a 2-in-1 with a detachable keyboard akin to the MS Surface Pro 5. it has an i5-7300u, 16 GB LPDDR3 (on-board), 500 GB NVMe, 12.3" 1920x1280 3:2 touch screen.\n
        \n
        I got it second-hand, unknown history, without a battery. they’re stuck at 400 MHz without one, but Thottlestop in Windows and msr-tools in Linux fix the BD_PROCHOT throttling and the machine performed adequately for months.\n
        \n
        I’ve sourced a replacement battery, removed the patch and my problems started. there’s weird screen flickering, looks like bad video ram or a flaky connection. it’s intermittent, sometimes it runs without issues for hours, sometimes minutes and sometimes it flickers from the start, so troubleshooting and checking if this or that fixed things takes days.\n
        \n
        the artefacts are inconsistent with anything that is or isn’t happening (load, temps, etc) or power source. the problem is mostly exacerbated when the battery is full and/or when waking from sleep, it’s almost always super glitchy then.\n
        \n
        [here’s a demonstration:](https://imgur.com/a/WnsL2Jj)\n
        \n
        would be great if I could try a different battery or try this one in another device, but don’t have that option.\n
        \n
        at no point are there ANY glitches on the external display (tried DP-Alt over USB Type-C and HDMI over Dell WD19 Dock), regardless if the internal screen is enabled or not.\n
        \n
        so, bad luck - faulty screen or backlight or RAM or something, right?\n
        \n
        except, when I unplug the battery (but leave it in place) and connect it to power and reenable the BD_PROCHOT patch - zero glitches! it runs for hours - videos, GPU and CPU stress test, not one hiccup, tear, nothing!\n
        \n
        if it were a normal laptop, I’d just leave it be and use it as a desktop. it feels like such a waste with the functional touchscreen though.\n
        \n
        what I’ve tried:\n
        \n
        - different USB Type-C chargers\n
        - fresh paste on CPU, clean vent\n
        - latest firmware, tried downgrading, no change\n
        - memtest passed twice on thorough, all clear\n
        - internal diagnostics also\n
        - it never froze or crashed\n
        - screenshot during glitches doesn’t contain them\n
        - disabling turbo, upping/lowering the max/boost GPU clock, forcing cores offline, limiting max frequencies with TLP\n
        - the battery isn’t deformed and doesn’t exert pressure on the screen or any cables; also tried running it with the screen slightly lifted from the case, no change\n
        - pressing, jerking, wiggling of the internal display cable/connector, no change\n
        - same issues in Windows 11, Ubuntu 23.04 and Fedora WS 38; rarely but sometimes in BIOS/during boot\n
        - sadly, can’t undervolt the CPU/GPU (Throttlestop FIVER says it’s locked) but some MSR writes are apparently OK (like disabling BD_PROCHOT works).\n
        \n
        at some point, it had both charger and dock with PD attached at the same time to both USB Type-C ports; it’s possible this fried something, although I have no evidence of that.\n
        \n
        so, I’m sure this is NOT a linux hardware problem, but I would like to use linux to fix the problem. at this point, I am sure it’s defective, whether it’s age or physical or manufacturing defect or whatever; but since it definitely works perfectly without the battery, I’m looking for some tweaks that makes it perform *with* the battery the same as *without* it.\n
        \n
        seriously doubt anyone’s seen anything similar but are there any ideas what to look at? what to try?\n
        \n
        edit: I’m not asking for free hardware troubleshooting, maybe I haven’t expressed myself succintly. what I’d like is some sort of snapshot of all relevant registers with battery working. and then one without. and then have somehow the difference between those two computed, so I can see which setting I need to tweak. would this be doable?
        """
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        date: 2024-02-24 19:46:07.0 +01:00
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      Awesome breakdown and troubleshooting so far!\n
      \n
      I wonder if the previous owner removed the battery because of this issue in the first place.\n
      \n
      The fact that the flickering is full-width bands that don’t appear in screenshots indicates to me that this is a signal issue to or through the display.\n
      \n
      An important variable to pay attention to and experiment with is the display’s refresh rate. It’s possible that is what is changing with and without the battery, though you most likely would have noticed if that were the case.\n
      \n
      Since the problem varies based on battery presence, it would be appropriate to source a replacement battery - especially if you purchased a cheap aftermarket battery. The real deal for your system is available for $80USD from Parts People compared to $20-$40USD for low quality Amazon junk.\n
      \n
      After the battery, my main suspicion is a fault on the mainboard leaking voltage from the battery circuit and affecting the display signals. Even without the infrequency of the problem that would be tricky to isolate and remedy.\n
      \n
      Overall, this screams hardware issue and I don’t believe you will find a software trace of it. The problem is not visible in screenshots, so the software environment does not know that it exists.
      """
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