SUMMARY The issue description is similar to this one: https://bugs.kde.org/show_bug.cgi?id=353975 I run KDE on a laptop with external display connected over HDMI. Built-in display is disabled in "Display Configuration" and external display is configured as the only one enabled. Right after booting to KDE black screen is shown on external display. No wallpaper, no icons, can't get a context menu on right-click. Only task panel is visible and usable. It happens randomly but pretty consistently. As a workaround I use the following command which restarts plasmashell and then everything is OK again: kquitapp6 plasmashell && kstart plasmashell & There are no errors in journal related to KDE, only some warnings but it is hard to tell if any of those are relevant to this issue. Let me know if any particular logs can help investigate the issue. STEPS TO REPRODUCE 1. Have a laptop and external display 2. Connect external display over HDMI 3. Using "Display Configuration" disable built-in display and enable only external one 4. Reboot 5. KDE is started with black screen OBSERVED RESULT Black screen. EXPECTED RESULT Wallpaper and icons. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.0.4 KDE Frameworks Version: 6.1.0 Qt Version: 6.7.0 ADDITIONAL INFORMATION Kernel Version: 6.8.7-arch1-1 (64-bit) Graphics Platform: X11
Something pretty similar to this was fixed in Plasma 6.1. Can you upgrade to that and try again? Should be easy since you're on Arch — assuming you haven't upgraded already!
(In reply to Nate Graham from comment #1) > Something pretty similar to this was fixed in Plasma 6.1. Can you upgrade to > that and try again? Should be easy since you're on Arch — assuming you > haven't upgraded already! I am now on Plasma 6.1.3 and it looks like "after reboot" scenario is fixed, I was not able to reproduce it anymore. However there is still a problem if I logout to console and then "startx" again -- I can easily reproduce this issue, same black screen. Operating System: Arch Linux KDE Plasma Version: 6.1.3 KDE Frameworks Version: 6.4.0 Qt Version: 6.7.2 Kernel Version: 6.6.42-1-lts (64-bit) Graphics Platform: X11
Ok cool, then it sounds like the original issue is not fixed, so go ahead and open a new bug report for that other one. Thanks!
I created https://bugs.kde.org/show_bug.cgi?id=491868