Ubuntu
xserver-xorg-video-ati package

Flickering on AMD R9 270X

Bug #1721960 reported by Rodrigo Lledó
6
This bug affects 1 person
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xserver-xorg-video-ati (Ubuntu)
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Bug Description

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.

See original description
Rodrigo Lledó (rodhos-hp)
description: updated
Revision history for this message
Rodrigo Lledó (rodhos-hp) wrote :

You can close this bug. I don`t even have this card anymore.

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