Bug 436241

Summary:	Notifications render slowly with all kinds of artifacts
Product:	[Plasma] plasmashell	Reporter:	Ilya Bizyaev <bizyaev>
Component:	Notifications	Assignee:	Kai Uwe Broulik <kde>
Status:	RESOLVED FIXED
Severity:	normal	CC:	nate, plasma-bugs, sampingu02
Priority:	NOR
Version:	5.21.4
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=410016
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Screenshot 1 Screenshot 2 Screenshot 3 Screenshot 4

Description Ilya Bizyaev 2021-04-26 20:54:20 UTC

SUMMARY
Watching notifications show up in Plasma is painful: it takes 3-4 seconds of rendering artifacts and repositioning, including some notifications randomly jumping to a different screen corner.

On the one hand, it motivates me to reduce the number of notifications :)
On the other hand, I'd prefer that the ones I need are displayed faster.

STEPS TO REPRODUCE
1. Use Plasma
2. Receive notifications

OBSERVED RESULT
See the attachments


EXPECTED RESULT
Fast and smooth notification display


SOFTWARE/OS VERSIONS
Operating System: openSUSE Leap 15.2
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.81.0
Qt Version: 5.15.2
Kernel Version: 5.10
Graphics Platform: X11
Graphics Processor: Mesa DRI Intel® UHD Graphics

Comment 1 Ilya Bizyaev 2021-04-26 20:55:12 UTC

Created attachment 137941 [details]
Screenshot 1

Comment 2 Ilya Bizyaev 2021-04-26 20:55:42 UTC

Created attachment 137942 [details]
Screenshot 2

Comment 3 Ilya Bizyaev 2021-04-26 20:56:00 UTC

Created attachment 137943 [details]
Screenshot 3

Comment 4 Ilya Bizyaev 2021-04-26 20:56:14 UTC

Created attachment 137944 [details]
Screenshot 4

Comment 5 Nate Graham 2021-04-27 19:43:12 UTC

Is your system experiencing high load? I sometimes get this while at 100% CPU usage, but never during normal usage. Seems like a graphical issue rather than anything with notifications per se...

Comment 6 Ilya Bizyaev 2021-04-27 19:44:01 UTC

This happens under normal load and only with notifications :)

Comment 7 Samuel 2021-06-14 15:12:15 UTC

I get that too when there are a load of notifications on my phone which gets connected though KDEConnect (I usually dont get that many notifications in my desktop so cant comment about that). I have a nvidia card, if that matters.

Comment 8 Nate Graham 2023-04-28 04:46:28 UTC

Ilya, is it still happening in Plasma 5.27? Is this something you've just been living with all this time, or did it ever get better?

Comment 9 Ilya Bizyaev 2023-04-28 14:40:19 UTC

This hasn't been happening for a while — I don't remember which version fixed it. Closing as resolved.

Comment 10 Nate Graham 2023-04-28 14:42:00 UTC

Thank goodness! Thanks for following up.