glxgears corruption on gc400lt

[Kyle Russell]

I ended up reproducing the corruption on a subsequent boot of 5.4.158.  I
captured a poor recording over VNC; it animates much faster on the actual
panel.

https://imgur.com/a/JYaOT7v

When corrupted, glxgears reports a very low fps.  FPS was much higher (near
100fps) when displaying correctly.

77 frames in 5.0 seconds = 15.340 FPS
75 frames in 5.0 seconds = 14.947 FPS
75 frames in 5.0 seconds = 14.999 FPS
76 frames in 5.0 seconds = 15.058 FPS

I'll be happy to capture more useful debug, but I'm not quite sure what's
most relevant at this point.

On Mon, Nov 8, 2021 at 10:23 PM Kyle Russell <bkylerussell at gmail.com> wrote:

> Thanks for the suggestion.  I updated to 5.4.158 and the initial test
> seems to be positive, though I wasn't able to consistently reproduce the
> error before updating.  Do you have any hints that might help me to
> validate the problem I was hitting is actually related to one of the fixes
> in the latest 5.4 release?
>
> On Mon, Nov 8, 2021 at 5:06 AM Christian Gmeiner <
> christian.gmeiner at gmail.com> wrote:
>
>> Hi,
>>
>> >
>> > I'm trying to use etnadrm from xf86-video-armada and the etnaviv driver
>> from the 5.4.90 kernel with Xorg 1.20.8 and mesa 20.0.2, but occasionally
>> glxgears displays corrupt output.  When corruption occurs, it lasts for the
>> duration of the boot cycle.  On other boots, glxgears displays fine, though
>> it's very inconsistent.  The corruption is not static.  The triangular
>> shapes seem to correspond to the colors of the gears, and appear to rapidly
>> "dance" in the window.  Sometimes faint shadows of the gears can be
>> detected behind the corrupted region.
>> >
>>
>> Please update your kernel to the latest 5.4 kernel (5.4.158) - there
>> were some MMU fixes on the kernel side.
>>
>> --
>> greets
>> --
>> Christian Gmeiner, MSc
>>
>> https://christian-gmeiner.info/privacypolicy
>>
>
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