Bug 457956

Summary:	most plasma desktop events are delayed (toggling the app launcher, actions applet)
Product:	[Plasma] plasmashell	Reporter:	Matej Starc <matej.starc>
Component:	generic-performance	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	antkumachev, bugseforuns, dev.bacteriostat, nate
Priority:	NOR	Flags:	antkumachev: Wayland+ antkumachev: X11-
Version:	5.25.5
Target Milestone:	1.0
Platform:	Manjaro
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=454379
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Matej Starc 2022-08-16 11:39:54 UTC

SUMMARY
I experienced a krunner crash, after which I noticed most things are a bit laggy (opening the kickoff launcher, applet menu, etc.).


STEPS TO REPRODUCE
I don't know how to reproduce this.

OBSERVED RESULT
Everything in plasmashell is delayed for a bit.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.5
Kernel Version: 5.19.1-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-8700 CPU @ 3.20GHz
Memory: 15.5 GiB of RAM
Graphics Processor: AMD Radeon RX 480 Graphics

Comment 1 Matej Starc 2022-08-16 11:48:25 UTC

This is the video link (I couldn't upload it as a file, because it is too big).
https://cloud.aljaxus.eu/index.php/s/3wEsCoj887AGXGX

Comment 2 Matej Starc 2022-08-16 12:07:42 UTC

For some reason, it stopped happening. I didn't even reboot. I just used it normally.

Comment 3 Matej Starc 2022-08-16 13:05:28 UTC

(In reply to Matej Starc from comment #2)
> For some reason, it stopped happening. I didn't even reboot. I just used it
> normally.

Nvm. It started lagging again. Now, when I start a program it takes some time to show the window.

Comment 4 Patrick Silva 2022-08-16 17:24:23 UTC

same symptoms reported as bug 454379

Comment 5 Nate Graham 2022-08-17 19:49:03 UTC

Is there anything using excessive CPU time?

Comment 6 Matej Starc 2022-08-17 19:55:33 UTC

(In reply to Nate Graham from comment #5)
> Is there anything using excessive CPU time?

CPU time or CPU usage ?
If you are talking about CPU usage, then there wasn't anything suspicious.

Comment 7 Nate Graham 2022-08-17 20:06:49 UTC

Weird.

Comment 8 Bacteria 2022-08-18 03:19:55 UTC

Are you getting anything like this in the journal?

> plasmashell[1756]: QWaylandDataOffer: timeout reading from pipe
> plasmashell[1756]: QWaylandDataOffer: error reading data for mimeType application/x-kde-cutselection

Comment 9 Matej Starc 2022-08-18 13:41:41 UTC

(In reply to Bacteria from comment #8)
> Are you getting anything like this in the journal?
> 
> > plasmashell[1756]: QWaylandDataOffer: timeout reading from pipe
> > plasmashell[1756]: QWaylandDataOffer: error reading data for mimeType application/x-kde-cutselection

I can't reproduce it. To be honest, I don't know how it even happened (how to trigger it). I will make sure to make a log if I encounter it again.

Comment 10 Antttezy 2022-11-02 12:45:31 UTC

I had the same issue, solved it by re-installing inxi package