SUMMARY I left computer idle for a long time (around 2 hours) and screen cannot turn on again. SSH from other machine worked fine. Switch to TTY didn't work Disconnecting/reconnecting the DP cable didn't work STEPS TO REPRODUCE 1. Use the computer 2. Leave the computer idle for a long time so that screen goes to sleep (and more after that) 3. Try to use the PC again OBSERVED RESULT Screen didn't come back EXPECTED RESULT Screen is turned on normally SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION I stopped playing around 17:42 mar 26 17:42:15 URSO kwin_wayland[725]: kwin_core: could not find the toplevel to activate KWaylandServer::SurfaceInterface(0x55fcffd37d20) mar 26 17:42:15 URSO kwin_wayland[725]: kwin_core: could not find the toplevel to activate KWaylandServer::SurfaceInterface(0x55fcffd37d20) mar 26 17:40:18 URSO kwin_wayland[725]: kwin_core: XCB error: 3 (BadWindow), sequence: 22843, resource id: 90177651, major code: 129 (SHAPE), minor code: 6 (Input) Then near 20:00 kwin had some strange messages (that repeated for about 4 minutes) mar 26 20:00:19 URSO kwin_wayland[725]: kwin_wayland_drm: Failed to create gamma blob! Argumento inválido mar 26 20:00:12 URSO kwin_wayland[725]: kwin_wayland_drm: Failed to create gamma blob! Argumento inválido mar 26 20:00:06 URSO kwin_wayland[725]: kwin_wayland_drm: Failed to create gamma blob! Argumento inválido When I tried to use the PC again (20:13) mar 26 20:13:14 URSO kwin_wayland[725]: kwin_wayland_drm: Setting dpms mode failed! mar 26 20:13:14 URSO kwin_wayland[725]: kwin_wayland_drm: Setting dpms mode failed! mar 26 20:13:14 URSO kwin_wayland[725]: kwin_wayland_drm: Setting dpms mode failed!
Created attachment 157606 [details] systemd journal
Forgot to add the system info Operating System: Arch Linux KDE Plasma Version: 5.27.3 KDE Frameworks Version: 5.104.0 Qt Version: 5.15.8 Kernel Version: 6.2.8-zen1-1-zen (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5700X 8-Core Processor Memory: 15.5 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1070/PCIe/SSE2 Manufacturer: Micro-Star International Co., Ltd. Product Name: MS-7A37 System Version: 1.0
I also have this problem on my machine. I will try to gather logs (if it happens again) and versions tomorrow, but here's what I know about my system now: Operating System: Arch Linux Graphics Platform: Wayland Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor Memory: 31.3 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 3060/PCIe/SSE2 Manufacturer: ASUS It has been happening for the last 1-2 weeks. Doesn't happen every time, but about 5 times so far. Seems to be more likely to occur the longer I leave the system alone. Disk LED keeps blinking, so system clearly isn't frozen. I haven't tried SSH. Can't switch tty or replug monitors. Must force reset the machine via power button.
Did a bit more digging... Apparently this is a problem with night colors on wayland since Nvidia doesn't support it. Apparently if night colors is applied while display is off make it unable to wake again https://invent.kde.org/plasma/kwin/-/merge_requests/3868 Try setting it to off
Good find. I do indeed have that enabled despite it not working. I will turn it off and see if it fixes.
Cool, so it should already be fixed by https://invent.kde.org/plasma/kwin/-/commit/ec593a23644910a19ec2284aa753678228f19937 in Plasma 5.27.4.