4 ms·

Are you sure you don't have a hardware issue? (overheated?) That looks a lot like GPU artifacting.

henriquez 7y ago
Ya, Chrome uses the GPU and that looks like GPU memory failure artifacting. So it’s likely either a problem with the chipset or CPU if OP is on integrated graphics, or whatever discrete GPU may be installed. Worth updating all drivers before you buy a new computer / GPU though!
isthispermanent 7y ago
I'm not sure. Macbook Pro, no other signs of overheating from what I can tell
- snazz 7y ago
  Can you verify that it only happens on the AMD GPU, or does it happen when the system is using the Intel GPU as well? Edit: https://bugs.webkit.org/show_bug.cgi?id=211716 https://bugs.webkit.org/show_bug.cgi?id=211716 and https://bugs.chromium.org/p/chromium/issues/detail?id=1068170 https://bugs.chromium.org/p/chromium/issues/detail?id=106817...
  - boksiora 7y ago
    Hello, i had the same problem and im on AMD GPU
asveikau 7y ago
About 12 years ago I had a laptop where some pins on the GPU were coming loose. It looked a bit like this. If I held it down with my hand on a strategic part it would temporarily resolve the issue. A heat gun also temporarily resolved it, but not for very long.
- ashtonkem 7y ago
  That’s how we fixed my T42 with a similar issue. Well, until I got drunk in college and fell on it. Heat guns don’t really fix that.
- colejohnson66 7y ago
  Can’t really do things like that anymore (unfortunately) what with the massive heat sinks and the GPU manufacturers switching to BGA to pack more pins in
rootusrootus 7y ago
Would a hardware problem show up in a screenshot? It could be a picture of the screen, but the alignment is perfect.
- cbg0 7y ago
  Yes, it would show up, as that's how it's rendered, artifacts and all.
- bipson 7y ago
  Interesting argument. In fact if the fault would lie only between screen and the 'last mile' on the GPU you would be correct. But GPUs are slightly more than simple display renderers (at least nowadays), so (vast simplification) multiple renderings happen before the actual display output is generated and sent over the wire to the display. E.g. a failing memory on the GPU might only corrupt the output of a single window/application, since this window is using the GPU to render content, while everything else is fine.
- CountSessine 7y ago
  Depends on where the hardware defect is. If the defect is before the frame buffer (shaders, triangle setup, rasterization), then yes it will show up. If it’s after the frame buffer (CRTC, resampling and DAC), then no it won’t show up.
  - rootusrootus 7y ago
    Now that is the answer I was hoping for. Thanks!

Ya, Chrome uses the GPU and that looks like GPU memory failure artifacting. So it’s likely either a problem with the chipset or CPU if OP is on integrated graphics, or whatever discrete GPU may be installed. Worth updating all drivers before you buy a new computer / GPU though!

isthispermanent 7y ago

I'm not sure. Macbook Pro, no other signs of overheating from what I can tell

snazz 7y ago
Can you verify that it only happens on the AMD GPU, or does it happen when the system is using the Intel GPU as well? Edit: https://bugs.webkit.org/show_bug.cgi?id=211716 https://bugs.webkit.org/show_bug.cgi?id=211716 and https://bugs.chromium.org/p/chromium/issues/detail?id=1068170 https://bugs.chromium.org/p/chromium/issues/detail?id=106817...
- boksiora 7y ago
  Hello, i had the same problem and im on AMD GPU

asveikau 7y ago

About 12 years ago I had a laptop where some pins on the GPU were coming loose. It looked a bit like this. If I held it down with my hand on a strategic part it would temporarily resolve the issue. A heat gun also temporarily resolved it, but not for very long.

ashtonkem 7y ago
That’s how we fixed my T42 with a similar issue. Well, until I got drunk in college and fell on it. Heat guns don’t really fix that.
colejohnson66 7y ago
Can’t really do things like that anymore (unfortunately) what with the massive heat sinks and the GPU manufacturers switching to BGA to pack more pins in

rootusrootus 7y ago

Would a hardware problem show up in a screenshot? It could be a picture of the screen, but the alignment is perfect.

cbg0 7y ago
Yes, it would show up, as that's how it's rendered, artifacts and all.
bipson 7y ago
Interesting argument. In fact if the fault would lie only between screen and the 'last mile' on the GPU you would be correct. But GPUs are slightly more than simple display renderers (at least nowadays), so (vast simplification) multiple renderings happen before the actual display output is generated and sent over the wire to the display. E.g. a failing memory on the GPU might only corrupt the output of a single window/application, since this window is using the GPU to render content, while everything else is fine.
CountSessine 7y ago
Depends on where the hardware defect is. If the defect is before the frame buffer (shaders, triangle setup, rasterization), then yes it will show up. If it’s after the frame buffer (CRTC, resampling and DAC), then no it won’t show up.
- rootusrootus 7y ago
  Now that is the answer I was hoping for. Thanks!