Bug 458634

Summary:	KDE Plasma doesn't start (black screen) after upgrading Debian10->11 due to eventcalendar plasmoid
Product:	[Plasma] plasmashell	Reporter:	myndstream
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED UNMAINTAINED
Severity:	normal	CC:	kde, nate
Priority:	NOR
Version First Reported In:	5.18.7
Target Milestone:	1.0
Platform:	Debian stable
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description myndstream 2022-09-02 09:58:57 UTC

SUMMARY
Explanation here: https://unix.stackexchange.com/q/666617/233262
I already solved this by removing (or moving) the /home/username/.local/share/plasma/plasmoids/org.kde.plasma.eventcalendar/ folder (e.g. by running dolphin ~/.local/share/plasma/plasmoids/).
Would be good to check if plasmoids / eventcalendar can cause issues.

STEPS TO REPRODUCE
1. Upgrade from Debian 10 to 11 (not sure if older versions of some packages are required to reproduce it, it must have occurred at the time that I posted this question linked above)
2. Boot with KDE

OBSERVED RESULT
Black screen after a while

EXPECTED RESULT
No issues at all after upgrading

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian 11
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
I know it's old software and it may already be fixed. This could be helpful if you can easily find an issue with the eventcalendar for example and quickly know what caused it.

Comment 1 Nate Graham 2022-09-02 18:47:35 UTC

> Black screen after a while

So it happens after you log in, and after you've been able to use the system for a while?

Regardless, I'm afraid Plasma 5.20.5 is no longer maintained because it's almost impossible to debug issues like this on old versions of Plasma. Debian has assumed the burden of support for the old software they ship, so please file bugs for them, or else try again with Debian Testing.