[Desktop] KDE Plasma started crashing

[vanadiumboy]

On Kubuntu 24.04, I think Plasma was crashing. Yes 24.04
This means, when I log into a session, the background loads, it flashes black and shows the desktop a few times but then just shows the background just fine.

There was no Start menu (Kick off menu). I was able to press window + E to open Dolphin.
From there, I could double click HTML and ODT and whatever files.

Using X11. It is some Intel graphics chipset.
I can press Ctrl-Alt-Del and log out, and it shows the normal loggin page. I can log back in but same problem comes back.
If I log into another session, it works fine for a little while and problem starts.
It is as if it takes a while for each session to become damaged.

Ctrl-Alt-F1 and Ctrl-Alt-F3 shows the console. I am able to do shutdown -r 0 and it reboots.

I tried another SATA cable for the HDD. I then tried another HDD.
I then changed the entire PC and that worked.====It has been working for 1 week now.
I have no idea what the problem is.

[skyfishgoo]

do you use anything based on chromium?

[vanadiumboy]

do you use anything based on chromium?

No, on that machine, it was Firefox. Sometimes I open LibreOffice Writer.
I do remember seeing some error message, when I pressed Ctrl-Alt-F1, about /var/ something temp / something vbox so I was wondering if VirtualBox was causing a problem so I uninstalled VirtualBox. The problem persisted but it wasn't always showing an error message on Ctrl-Alt-F1

[Cincinnatus]

do you use anything based on chromium?

I assume you're referring to the pasma shell crashes a couple days ago? The one that the command "fc-cache -r" was supposed to fix?

I used that command on my pc and it stopped the screen from flashing and allowed me to use my pc again. However, every time I log in now I'll get about 20 notifications telling my plasma has crashed although it doesn't make the screen or anything flash anymore

[claydoh]

I assume you're referring to the pasma shell crashes a couple days ago? The one that the command "fc-cache -r" was supposed to fix?

I used that command on my pc and it stopped the screen from flashing and allowed me to use my pc again. However, every time I log in now I'll get about 20 notifications telling my plasma has crashed although it doesn't make the screen or anything flash anymore

Then you have a chromium-based browser being run, or possibly some electron-based app that is built on it, that is causing the crashing here by breaking the fontconfig caches. Chrome itself seems to be fine now, but other things may be lagging behind.

You'd want to run the fix every time you have used one of these before rebooting or when it breaks. And see if you can find the specific culprit and updating it or avoid using it.