SUMMARY Recently, I decided to give a try to Wayland, so I selected "Wayland" in SSDM desktop switcher and click "Accept" to log in, but instead Plasma desktop, a black screen was all I got. After a lot of googling around, someone mentioned that something similar had happened to him and found out that it was related to the shell I had installed. Indeed, I had the fish-shell l installed and, after uninstalling it and rebooting, I was able to get past the black screen. So I didn't try to install again fish-shell. Yesterday, another openSUSE user, related same issue en an openSUSE forum. He had installed fish-shell too and after uninstall it, issue with Wayland disapeared. Someone told us that is POSIX related, but as users, we only can uninstall fish-shell. STEPS TO REPRODUCE 1. Install "fish-shell" shell 2. Reboot 3. Try to login using Wayland to Plasma OBSERVED RESULT Black screen EXPECTED RESULT To show Plasma desktop after login SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20230718 KDE Plasma Version: 5.27.6 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.3-1-default (64-bit) Graphics Platform: X11 Processors: 4 × Intel® Core™ i5-6600K CPU @ 3.50GHz Memory: 31.3 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2 ADDITIONAL INFORMATION Here are some related links, but sure there are more. https://forums.opensuse.org/t/wayland-session-not-working/167751/9 https://www.reddit.com/r/openSUSE/comments/vm4a3b/plasma_wayland_session_stopped_working_after/ Thread that I opened on the fish-shell site to report the issue https://github.com/fish-shell/fish-shell/issues/9906 And this is a related issue in KDE bugs (yet solved): https://bugs.kde.org/show_bug.cgi?id=87671 https://github.com/fish-shell/fish-shell/issues/9906
This is an SDDM "issue". See https://github.com/sddm/sddm/issues/1592 / https://github.com/sddm/sddm/issues/1391 But also it's kind of not an SDDM issue. fish is not a POSIX compliant shell. Using a non-POSIX compliant login shell is likely to cause issues like this