Comment # 14
on bug 107731
from James Wood
I was about to report having the same bug but it seems the today's Mesa 19.2.0-2 update has solved the problem, I will include what I was originally going to post in case it's of use to anyone. --- I've began to have this bug in the last week or two, I have two monitors one an Asus PA238 connected via DVI has no issues, the other a AOC 2270W connected via DP changes to a lower resolution after wakeup, typically 800x600 which cannot be changed back to normal. I can reproduce this consistently by using 'xset -display :0 dpms force standby' and waiting about one minute. Running 'xrandr --output DisplayPort-2 --auto' restores the display to its normal native resolution. The system log shows the following error: [drm] enabling link 2 failed: 15 [drm:dm_restore_drm_connector_state [amdgpu]] *ERROR* Restoring old state failed with -22 Stack trace: https://pastebin.com/yguN5NUk System specification: OS: Arch linux 5.3.1-arch1-1-ARCH GPU: AMD Radeon RX 590 using AMDGPU-Pro DE: KDE Plasma 5.16.5
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