Created attachment 176831 [details] Screenshot of issue (black area on my machine is shown as white in screenshot) SUMMARY Not sure if this is machine specific, but I've been able to repro consistently on my X1 Carbon 12gen with Kubuntu 24.10. When turning off "Lock after waking from sleep" in the screen locking settings, but setting the laptop to "Sleep" on closing the lid, the system will lose all the shell and KDE stuff when resuming (black desktop, no taskbar, etc.) but if I change things back to "Lock after waking" then the screens come back (after unlocking of course). It doesn't seem like a crash because I can change the setting back, close the lid, and reopen and it will fix itself if the setting is turned on. STEPS TO REPRODUCE 1. Turn off "Lock after waking from sleep" 2. Set lid behavior in Power Management to "When laptop lid is closed" = "Sleep" 3. Close lid and reopen OBSERVED RESULT Applications that were open are still visible, but all the KDE stuff is gone (taskbar, etc.) EXPECTED RESULT Normal KDE stuff should still be there. SOFTWARE/OS VERSIONS Operating System: Kubuntu 24.10 KDE Plasma Version: 6.1.5 KDE Frameworks Version: 6.6.0 Qt Version: 6.6.2 Kernel Version: 6.11.0-13-generic (64-bit) Graphics Platform: Wayland Processors: 22 × Intel® Core™ Ultra 7 155H Memory: 30.9 GiB of RAM Graphics Processor: Mesa Intel® Arc Manufacturer: LENOVO Product Name: 21KCCTO1WW System Version: ThinkPad X1 Carbon Gen 12 ADDITIONAL INFORMATION As mentioned above, turning the setting back on seems to resolve this issue. Using sleep from the gear menu does NOT exhibit this issue, only closing the lid. Filing this under screen locking as the issue only exhibits when screen locking is turned off, but feel free to request a different place for this if you see fit. Screenshot shows white, but it's really black in those spots.
Created attachment 176832 [details] Screenshot when things work properly (after changing lock to true) Added an additional screenshot when it "works"
Cannot reproduce on current git master. Does it happen to you on X11 too? Or only on Wayland?
(In reply to Nate Graham from comment #2) > Cannot reproduce on current git master. Does it happen to you on X11 too? Or > only on Wayland? Hi Nate, first of all thanks for looking into this. Is there a good way for me to know whether I'm on X11 or Wayland and switch between them? Sorry, I'm not very up to speed on the modern window managers / Wayland vs. X11 - most of my experience in configuring / messing about with X is from many years ago. If you want to provide some steps you want me to do to check things, feel free - I'll do my best to do some digging based on your recommendations.
The Info Center app will tell you on the front page, beside "Graphics Platform".
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME. For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging. Thank you for helping us make KDE software even better for everyone!
Have the exact same bug. So this should be reproducible - have read same complaint on Reddit repeatedly - all of the complaints seem to be happening in a Wayland context. Operating System: Kubuntu 24.10 KDE Plasma Version: 6.1.5 KDE Frameworks Version: 6.6.0 Qt Version: 6.6.2 Kernel Version: 6.11.0-13-generic (64-bit) Graphics Platform: Wayland Processors: 14 × Intel® Core™ Ultra 5 125U Memory: 30,9 GiB of RAM Graphics Processor: Mesa Intel® Graphics
I’m having the very similar issue i.e. the same results - disappearing plasma, but the different cause: for me it is happening only when I have an usb-connected external monitor. It happens after waking up from sleep or just unlocking locked desktop (with "lock after waking from sleep" enabled). Unplugging and connecting the monitor again fixes the issue instantly. Happy to help resolve the issue, let me know how can I help. Operating System: Fedora Linux 41 KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.1 Kernel Version: 6.12.11-200.fc41.x86_64 (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 PRO 5650U with Radeon Graphics Memory: 30.2 GiB of RAM Graphics Processor: AMD Radeon Graphics Manufacturer: LENOVO Product Name: 20XLS0M20M System Version: ThinkPad T14 Gen 2a
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.
I also have this bug, but only on my external screen, never the internal one. Sometimes also when I connect the external screen, totally unrelated to sleep. Disconnecting and reconnecting the external screen helped every time, but is a bit of an annoying workaround. Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.2 KDE Frameworks Version: 6.15.0 Qt Version: 6.9.1 Kernel Version: 6.15.5-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen AI 7 350 w/ Radeon 860M Memory: 32 GiB of RAM Graphics Processor: AMD Radeon 860M Graphics Manufacturer: LENOVO Product Name: 83JU System Version: Yoga 7 2-in-1 16AKP10