I’m running KDE Plasma 6.1.5 Wayland version as my daily desktop on an Ubuntu 24.10 system.
It generally runs well but I do have problems where the desktop will be totally frozen. I also found that the Linux Unreal Editor does not run in a Wayland environment. It complains about not finding a compatible Vulkan device that supports surface presentation.
I decided to switch back to X11 version of plasma by selecting it from the SDDM dropdown before I log in.
But, if I open any application, I cannot move the application’s window or resize it at all. The windows are active but it’s like the window manager isn’t interacting with them.
If I log out, I get to a screen that says I will be logged out in 30 seconds. I hit logout now and the screen is frozen.
The system is not dead. I can git CTRL-ALT-F6, get a system console window and run init 3 then init 5 to get my system back.
This is frustrating. I ran Fedora with plasma desktop for many (more than 10 years) and my system was rock solid, no crashes to speak of.
I installed Ubuntu this year since Ubuntu is supposedly the better supported distribution, and it’s been a bunch of problems with stability.
How does this get fixed?
System info as follows from info center
Operating System: Ubuntu 24.10
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.6.0
Qt Version: 6.6.2
Kernel Version: 6.11.0-19-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × Intel® Core™ i9-10900X CPU @ 3.70GHz
Memory: 152.6 GiB of RAM
Nvidia driver is version 565
Graphics Processor: NVIDIA GeForce RTX 4070 Ti SUPER/PCIe/SSE2
Generally speaking upgrading to the next release. Which is due near the end of April. Ubuntu (and thus Kubuntu’s Plasma packages) don’t see upgrades between releases. There is a PPA that Kubuntu provide for supplying newer Plasma versions back-ported from the current in-development release, but there is nothing there for 24.10 currently.
Upgrading won’t fix Unreal Editor not supporting Wayland, I think.
I take that as you installed something like kubuntu-desktop on top of a full Ubuntu Gnome install?
Fwiw, it is not at all uncommon to have odd to serious issues when having both a full Gnome and full Plasma installed on the same system, at least on Ubuntu/Kubuntu, depending on which meta-package was installed to get there.
It is entirely possible that you would have seen similar issues in Fedora, using the exact same versions of Plasma et al.
I have used Kubuntu since it came out in 2005, and I cannot recall the last time I had a crash or seriously unstable system that wasn’t a direct result of my own actions or dying hardware. Probably much more than a decade. But I know my experience doesn’t necessarily translate to everyone having the same.
That sort of depends, and has valid arguments in both directions.
My last go-round I installed a clean Ubuntu 24.10. I think I installed plasma-desktop on top of that, along with sddm. After taht I installed a plasma wayland package.
I found out that the reason I could not move or resize windows on plasma X11 was there was no window manager. I installed kwin-X11 and that fixed that. Not sure why that didn’t get dragged in as a prerequisite when plasma-desktop got installed, but now it’s fixed/