Bug 489530

Summary:	Shut Down and Reboot from application launcher freezes on X11
Product:	[Plasma] plasmashell	Reporter:	Cynicus Rex <cynicusrex>
Component:	Application Launcher (Kickoff) widget	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	major	CC:	kdebugs.6k7o2, mikel5764, nate, noahadvs, van.a.gribanov
Priority:	NOR
Version First Reported In:	master
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Cynicus Rex 2024-07-01 05:45:51 UTC

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Shut Down and Restart from application launcher freezes. I have to CTRL + ALT + F1, then CTRL + AL + DEL to get the process going.
While the process is frozen, the top left Screen Edges, Overview function still works.


STEPS TO REPRODUCE
0. Log in.
1. Click “Application Launcher”.
2. Click Restart / Shut Down.

OBSERVED RESULT
Cursor remains visible on a black screen, nothing else happens.


EXPECTED RESULT
Shuts down or reboots.

SOFTWARE/OS VERSIONS
Operating System: EndeavourOS 
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2
Kernel Version: 6.9.7-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i7-7600U CPU @ 2.80GHz
Memory: 15,5 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 620
Manufacturer: LENOVO
Product Name: 20HGS0DP00
System Version: ThinkPad T470s

ADDITIONAL INFORMATION
This happens both on my laptop and desktop.

Comment 1 Cynicus Rex 2024-07-01 05:48:09 UTC

I forgot to mention this only happens on X11, when I switch to Wayland it does not.

Comment 2 Nate Graham 2024-07-02 19:49:13 UTC

Does the same thing happen in a new clean user account using the X11 session?

Comment 3 Cynicus Rex 2024-07-02 20:29:24 UTC

(In reply to Nate Graham from comment #2)
> Does the same thing happen in a new clean user account using the X11 session?

It doesn't.

Comment 4 Ivan 2024-07-06 13:14:00 UTC

Got same stuff after upgrading 6.0.5 -> 6.1.1. ArchLinux. X11.
Killing plasma-fallback after trying to shutdown makes system to shutdown
Removing ~/.config/ksmserverrc removed the issue
After rebooting file was created again.
before:
[$Version]
update_info=ksmserver_update_loginMode_value.upd:ksmserver_update_loginMode_value_default_enum

[General]
loginMode=restoreSavedSession

[LegacySession: saved at previous logout]
clientMachine1=localhost
command1=org.gnome.Nautilus
count=1

[Session: saved at previous logout]
clientId1=10146d7e3df000172025767900000009590005
count=1
discardCommand1[$e]=rm,$HOME/.config/session/yakuake_10146d7e3df000172025767900000009590005_1720257737_185315
program1=/usr/bin/yakuake
restartCommand1=/usr/bin/yakuake,-session,10146d7e3df000172025767900000009590005_1720257737_185315
restartStyleHint1=0
userId1=ivan

after:
[General]
loginMode=emptySession

[LegacySession: saved at previous logout]
count=0

[Session: saved at previous logout]
clientId1=10146d7e3df000172025907900000009480005
count=1
discardCommand1[$e]=rm,$HOME/.config/session/yakuake_10146d7e3df000172025907900000009480005_1720259120_929681
program1=/usr/bin/yakuake
restartCommand1=/usr/bin/yakuake,-session,10146d7e3df000172025907900000009480005_1720259120_929681
restartStyleHint1=0
userId1=ivan

Comment 5 Jared 2024-07-21 07:03:02 UTC

(In reply to Ivan from comment #4)
> Removing ~/.config/ksmserverrc removed the issue

This "fixed" it for me, but it seems like it's related to manually saved sessions, as re-selecting that option makes the issue return.

I'm also running EndeavourOS with X11. Issue first started around the same time this report was first posted.
Discord and Conky would remain running, but everything thing else GUI-wise will close (black background, no widgets, etc.)