Public bug reported:
SO: Ubuntu 17.04
xserver-xorg-video-ati version: 1:7.9.0-0ubuntu1
Graphics: Gallium 0.4 on AMD PITCAIRN (DRM 2.49.0 / 4.10.0-35-generic, LLVM
4.0.0)
GPU: Sapphire R9 270X
The screen flickers every time the GPU recieves some workload (e.g. moving the
mouse or opening a window).
This is probably caused by the DPM (dynamic power management). The bug is gone
when I set /sys/class/drm/card0/device/power_dpm_force_performance_level to
high or low. The bug is present when set to auto.
I know that some people has removed his R9 270X from the quirk list and
recompiled the kernel fixing the issue.
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
SO: Ubuntu 17.04
xserver-xorg-video-ati version: 1:7.9.0-0ubuntu1
Graphics: Gallium 0.4 on AMD PITCAIRN (DRM 2.49.0 / 4.10.0-35-generic, LLVM
4.0.0)
- GPU: Saphire R9 270X
+ GPU: Sapphire R9 270X
The screen flickers every time the GPU recieves some workload (e.g. moving
the mouse or opening a window).
This is probably caused by the DPM (dynamic power management). The bug is
gone when I set /sys/class/drm/card0/device/power_dpm_force_performance_level
to high or low. The bug is present when set to auto.
I know that some people has removed his R9 270X from the quirk list and
recompiled the kernel fixing the issue.
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https://bugs.launchpad.net/bugs/1721960
Title:
Flickering on AMD R9 270X
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