This bug continues to be present in focal, with no effect from updated
kernel. It constantly cycles with xrandr repeatedly emitting that the
configuration has changed when monitors go to power saving mode, causing
wake-up. This cycle eventually crashes the kde lockscreen (probably a
separate bug), requiring dropping to console to unlock the session with
loginctl.
Reproduce: $ xset dpms force standby
Result: Monitors go to sleep and wake up within a few seconds.
Kernel: 5.11.0-27-generic x86_64 bits: 64 compiler: N/A Desktop: KDE Plasma
5.18.7 tk: Qt 5.12.8
wm: kwin_x11 dm: LightDM 1.30.0 Distro: Linux Mint 20.2 Uma base: Ubuntu 20.04
focal
Graphics: Device-1: Advanced Micro Devices [AMD/ATI] vendor: Tul driver:
amdgpu v: kernel bus ID: 2d:00.0 chip ID: 1002:73ff
Display: x11 server: X.Org 1.20.11 driver: amdgpu,ati unloaded:
fbdev,modesetting,radeon,vesa compositor: kwin_x11
resolution: 1920x1080~60Hz, 1920x1080~60Hz
OpenGL: renderer: AMD DIMGREY_CAVEFISH (DRM 3.40.0 5.11.0-27-generic
LLVM 12.0.1)
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You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to kscreen in Ubuntu.
https://bugs.launchpad.net/bugs/1833427
Title:
Continuous XRandROutput updates once screen is suspended by energy
saving
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/kscreen/+bug/1833427/+subscriptions
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