Created attachment 132190 [details] System log output at the time of suspension/reactivation I have set the display to turn off after 5 minutes, but when the time comes the display turns off and on immediately. In the system log it shows many lines from kscreen (I attach the log output). It is a new installation on a new computer. So I have no previous experience. However, in my "old" computer (it runs the same environment with the same programs but different hardware) it does work. If I unset "KScreen 2" from background services, DPMS works well. Operating System: Arch Linux KDE Plasma Version: 5.19.5 KDE Frameworks Version: 5.74.0 Qt Version: 5.15.1 Kernel Version: 5.8.13-zen1-2-zen OS Type: 64-bit Processors: 64 × AMD Ryzen Threadripper 3970X 32-Core Processor Memory: 62.7 GiB of RAM Graphics Processor: Radeon RX 580 Series
I think this is related to this another bug of amdgpu: https://gitlab.freedesktop.org/drm/amd/-/issues/662 After reading the above error report, I reactivated the KScreen service again and deactivated "Auto Select Input" option on the monitor. For the moment, it works.
Thanks for following up.