Created attachment 156616 [details] Video of issue SUMMARY Recently I've been encountering an issue where my third monitor turns off/disconnects after a while. Opening display settings shows my other two monitors as usual, but the third monitor is disabled. Trying to enable it does nothing, and its resolution settings only allow me to choose 640x480. Setting it as the primary monitor turns it back on (but stuck at 640x480). It always happens with the same monitor, which is a 144hz 1080p (BenQ ZOWIE XL2411P). Also, pushing my mouse into the edge of the screen causes the entire display on all monitors to "shift". I don't know how to explain it, so I recorded and attached a video. In the video, I can move the mouse into that outside area, but can't do anything in there. I can't put a window there, etc. Also, it appears to be showing a lockscreen, so I guess the time shown is precisely when it froze lol. Shortly after recording the video, I also noticed that plasma was reporting ~66% CPU and ~70% MEM usage in `top`. That may or may not be related. Logging in/out and rebooting doesn't fix it. The only way to fix it is to delete everything in `~/.local/share/kscreen/`, followed by logging out and back in. I.e. `rm -rf ~/.local/share/kscreen/*` STEPS TO REPRODUCE I haven't been able to reproduce it, but it is a persistent problem. I believe it's related to the lock screen. Sometimes (not always) when I wake the displays, I will be presented with this bug. OBSERVED RESULT Third monitor disconnects, display behaves strangely EXPECTED RESULT Not that SOFTWARE/OS VERSIONS Operating System: Fedora Linux 37 KDE Plasma Version: 5.27.0 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 Kernel Version: 6.1.12-200.fc37.x86_64 (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-7700K CPU @ 4.20GHz Memory: 15.6 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 Manufacturer: MSI Product Name: MS-7977 System Version: 1.0 ADDITIONAL INFORMATION This is using the Nvidia proprietary driver version 525.89.02
*** This bug has been marked as a duplicate of bug 460341 ***
After update to 5.27.3, I'm encountering the exact same behavior. I didn't encounter the bug while I was on 5.27.2, so idk if it's a regression or if I was just lucky during that time. The issue seems to happen when unlocking the display after idling. I encountered it today after stepping away from my computer for a few hours, and waking it up when I returned. I'm not sure which exact setting is responsible, since I know there are *at least* two different timeouts in the system settings app which might affect this: * Workspace -> Workspace Behavior -> Screen Locking * I have "Lock screen automatically" set to "60 minutes", and both check boxes on ("After" and "After waking from sleep") * also "Allow unlocking without password for" is set to "5 seconds" * Hardware -> Power Management -> Energy Saving * "Screen Energy Saving" checked with "Switch off after" set to "60 min" SOFTWARE/OS VERSIONS: (updated) Operating System: Fedora Linux 37 (Kinoite) KDE Plasma Version: 5.27.3 KDE Frameworks Version: 5.104.0 Qt Version: 5.15.8 Kernel Version: 6.2.7-200.fc37.x86_64 (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-7700K CPU @ 4.20GHz Memory: 15.6 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 Manufacturer: MSI Product Name: MS-7977 System Version: 1.0 Nvidia driver version: 525.89.02
Now that video is the weirdest thing I've seen in a long time. Thanks so much for attaching it; I don't think any amount of words would be able to adequately describe it!
This is caused by Xorg's panning feature. I don't know how you would trigger that accidentally, so I assume either KScreen or your video driver is doing something weird