SUMMARY When setting "Clicking grouped task:" is set to "Shows small window previews", sometimes this function stops to function, and alt-tabbing is the only way of accessing a window that's grouped. Reboot works as a work-around, and I haven't been able to find a pattern where this happens. Switching to any other setting (large window preview, cycle through or textual list) all work. Switching back to small window preview doesn't solve the problem, it stays non-functional. STEPS TO REPRODUCE 1. Set "Shows small window previews" in the Behaviour part of Icons-Only task manager 2. Click a grouped window in the taskbar OBSERVED RESULT Nothing shows up EXPECTED RESULT A small preview of each window in the group should appear SOFTWARE/OS VERSIONS Linux/KDE Plasma: CachyOS KDE Plasma Version: 6.4.5 KDE Frameworks Version: 6.18.0 Qt Version: 6.9.2 ADDITIONAL INFORMATION n/a
Do you by any chance have an NVIDIA GPU?
Yes, RTX 4070 Super. i9 11th gen, 64 gb ram. Wayland-session
I'm not immediately able to reproduce this on a system with Plasma 6.4.5 and an NVIDIA GPU, but I'll keep an eye out
Created attachment 185374 [details] Desktop as is. Note the plus sign on the Steam Icon. Nothing happens when clicked.
(In reply to TraceyC from comment #3) > I'm not immediately able to reproduce this on a system with Plasma 6.4.5 and > an NVIDIA GPU, but I'll keep an eye out I have a few widgets downloaded, but not used. I assume that wouldn't cause any problems? System is patched regularly, like almost every day, as well as rebooted.
Since you have an NVIDIA GPU, it reminds me of Bug 480800. But that was supposed to be fixed in Qt 6.9, so likely not the exact same thing.
Well, turns out I was using Vulkan as my backend-renderer. (I have no recollection of changing this on my own) A lot of issues, along with this one, was solved after deleting .config/kdeglobals and rebooting. I guess this can be set to resolved.
Thanks for letting us know. I'll close this out for now. If the bug recurs, feel free to reopen the report.