[Bug 102414] Hawaii gpu (R9 290) and the troubles with the amd-staging-drm-next branch

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=102414

--- Comment #6 from Vadim Girlin <ptpzz@yandex.ru> ---
Created attachment 134152
  --> https://bugs.freedesktop.org/attachment.cgi?id=134152&action=edit
dmesg after failed resume

The latest amd-staging-drm-next branch fails to resume from suspend properly
for me. It worked previously (when it was possible to perform a suspend).

After resume the screen is mostly blue now with some dynamic random noise -
horizontal black lines etc. Though I hear the sound via the display port audio
from the video that was playing at the moment of suspend, so at least that part
seems to work.

There are some amdgpu backtraces in the attached dmesg before and after the
suspend/resume, but I didn't notice any real issues before suspend so far, the
only problem is that the display is unusable after resume.

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