Comment # 5
on bug 103791
from denisgolovan@yandex.ru
(In reply to Michel Dänzer from comment #4) > We need to find out why the kernel starts returning -EINVAL from the page > flip and wait for vblank ioctls. > > Can you try writing 255 to /sys/module/drm/parameters/debug before > reproducing the problem, and attach the resulting dmesg output? (Note that > writing non-0 to /sys/module/drm/parameters/debug will cause a lot of > debugging output to be generated, so you'll want to write 0 to it again soon > afterwards) Got it. I'll attach dmesg as soon as I reproduce the issue. > In case that doesn't reveal why -EINVAL is being returned, are you able to > recompile the drm.ko / amdgpu.ko kernel modules with a patch applied? Sure. Gentoo is there :)
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