Which DE are you talking about? It sounds like KDE/Plasma but you didn't specify.
Apologies. It's KDE. I've udated the post.
Are you using Wayland with KDE? For me the taskbar freezes if I'm on Wayland and hover over some windows so it shows the preview.
If you're also using Wayland, try turning off window previews (right-click taskbar->configure->Show small window previews).
Also, as a workaround if this doesn't fix it for you, you can execute plasmashell --replace and it'll replace the existing frozen instances instead of starting new ones. If you use krunner (alt+space) it'll stay in your recent commands as well, so you can easily run it again when it freezes again.
I bound that command to meta+del because it was happening frequently enough to annoy the shit out of me. Bring on plasma6!
Can you confirm that it's only the taskbar that freezes? Do any other DE components (e.g. app launcher (shortcut meta + f2 by default)) work or do they freeze/not respond as well?
You could check various logs for errors:
/var/log/syslog or dmesg)journalctl -xeu $UNITNAME; e.g. journalctl -xeu sddm.service)Not on Debian, but I got this freezing with KDE Plasma Wayland with Nvidia driver. KDE Plasma Xorg works though.
My Intel iris laptop works fine with KDE Plasma Wayland.
OOT. My phone autocorrect Xorg to corgi 😂 but I cought it before sending.
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