SUMMARY Trying to wake system from automatic sleep (suspend) following user-determined period of inactivity leads to no response or waking; screen remains black and no keyboard or mouse inputs cause this to change; shutdown button does not shut down system, force shutdown is necessary. This has been happening for a couple months now. STEPS TO REPRODUCE 1. Allow system to automatically go to sleep (suspend) 2. Wait a moment, then attempt to wake the system through keyboard input 3. Screen remains black, no signs of response or waking from system OBSERVED RESULT Non-responsive, black screen, shutdown button does not shut down system, while all hardware is still on and active. EXPECTED RESULT Show lock screen. SOFTWARE/OS VERSIONS Linux/KDE Plasma: openSUSE Tumbleweed 20260123, kernel 6.18.6-1-default KDE Plasma Version: 6.5.5 KDE Frameworks Version: 6.22.0 Qt Version: 6.10.1
ADDITIONAL NOTES: Not even hotkeys to change to TTL do anything. No combination of keyboard inputs wake the screen from black.
I have similar issue but I manage to solve it by unplugging and replugging PC monitor. Do you use DisplayPort monitor by chance? Or is this with a laptop? Operating System: KDE Linux 2026-02-01 KDE Plasma Version: 6.6.80 KDE Frameworks Version: 6.23.0 Qt Version: 6.10.2 Kernel Version: 6.18.7-zen1-1-zen (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 3600 6-Core Processor Memory: 16 GiB of RAM (15.5 GiB usable) Graphics Processor: AMD Radeon RX 6600
(In reply to Akseli Lahtinen from comment #2) > I have similar issue but I manage to solve it by unplugging and replugging > PC monitor. > > Do you use DisplayPort monitor by chance? Or is this with a laptop? > > Operating System: KDE Linux 2026-02-01 > KDE Plasma Version: 6.6.80 > KDE Frameworks Version: 6.23.0 > Qt Version: 6.10.2 > Kernel Version: 6.18.7-zen1-1-zen (64-bit) > Graphics Platform: Wayland > Processors: 12 × AMD Ryzen 5 3600 6-Core Processor > Memory: 16 GiB of RAM (15.5 GiB usable) > Graphics Processor: AMD Radeon RX 6600 Hi. This is with a laptop, but I have this issue both when using the internal monitor and when connected to an external monitor. I use HDMI 2.0. I tried unplugging the external monitor the most recent time this happened, as normally this would reenable and switch to the internal monitor, but it does nothing in this case. I vaguely remember once the lock screen reappearing on the external monitor but not the internal monitor when I had both enabled, strangely enough, but I haven't tried reproducing this. I also currently have the integrated graphics (Optimus) disabled, but this problem has been happening for a while, with plasmashell/kwin_wayland doing this when I had Optimus enabled as well. I have not tried seeing if the issue exists on X11. As a temporary solution I have disabled automatic suspend when plugged in. Do you have any idea what might be causing the issue on your end? It sounds like this might be a bug we both have. Not sure with what though. Operating System: openSUSE Tumbleweed 20260131 KDE Plasma Version: 6.5.5 KDE Frameworks Version: 6.22.0 Qt Version: 6.10.1 Kernel Version: 6.18.6-1-default (64-bit) Graphics Platform: Wayland Processors: 32 × Intel® Core™ i9-14900HX Memory: 16 GiB of RAM (15.4 GiB usable) Graphics Processor: NVIDIA GeForce RTX 4060 Laptop GPU
> Do you have any idea what might be causing the issue on your end? It sounds > like this might be a bug we both have. Not sure with what though. > > In my case I have desktop PC tower. I have a feeling it might be a driver bug, but I will have to investigate it proper. What I have noticed is that powercycling the monitor fixed the issue until PC is rebooted. To me it feels like the driver/something is unable to restore power to the display normally. I will try to investigate it further. Will set this as confirmed for now.