Bug 502372

Summary: System Monitor widgets cause stuttering in plasmashell
Product: [Plasma] plasmashell Reporter: usr_40476 <usr_40476>
Component: System Monitor widgetsAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: ahiemstra, kde, nate, notmart
Priority: NOR    
Version First Reported In: master   
Target Milestone: 1.0   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: screen rec 1
screen rec 2
Screenshot of widget type in questions

Description usr_40476 2025-04-03 19:14:48 UTC
SUMMARY
Stuttering in plasmashell


STEPS TO REPRODUCE
1. drag mouse across desktop to slect files or use animated wallpaper of some sort

OBSERVED RESULT
stuttering

EXPECTED RESULT
smooth effects

SOFTWARE/OS VERSIONS
usr_40476@2xeon:~> kinfo        
Operating System: openSUSE Tumbleweed 20250325
KDE Plasma Version: 6.3.3
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.2
Kernel Version: 6.13.7-1-default (64-bit)
Graphics Platform: Wayland
Processors: 88 × Intel® Xeon® CPU E5-2699 v4 @ 2.20GHz
Memory: 62.6 GiB of RAM
Graphics Processor: AMD Radeon R9 390 Series
usr_40476@2xeon:~> 


ADDITIONAL INFORMATION
When selecting items on the desktop or anything that requires continuous motion there is a stuttering that makes it incredibly difficult to use.

affected components:
parallax effect, [HTML wallpaper plugin](https://store.kde.org/p/2137308), mouse dragging to select items, (possibly more)
Comment 1 usr_40476 2025-04-03 19:15:29 UTC
Created attachment 179970 [details]
screen rec 1
Comment 2 usr_40476 2025-04-03 19:15:47 UTC
Created attachment 179971 [details]
screen rec 2
Comment 3 Nate Graham 2025-04-04 14:51:02 UTC
Does this issue go away if you stop using an animated wallpaper? e.g. the default image wallpaper?
Comment 4 usr_40476 2025-04-04 23:40:12 UTC
(In reply to Nate Graham from comment #3)
> Does this issue go away if you stop using an animated wallpaper? e.g. the
> default image wallpaper?

No, it does not, it also affects dragging items and drag selecting
Comment 5 Nate Graham 2025-04-08 17:39:28 UTC
Does it happen in a new clean user account with no customization?
Comment 6 Bug Janitor Service 2025-04-23 03:47:30 UTC
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 7 usr_40476 2025-04-28 22:21:31 UTC
(In reply to Nate Graham from comment #5)
> Does it happen in a new clean user account with no customization?

No, it does not occur in a clean account
Comment 8 Nate Graham 2025-04-29 14:56:27 UTC
This would suggest a user account setup or configuration issue somewhere. It would be great if you can try to identify what it is. Unfortunately I can't really help you with this since the effect is pretty general-sounding, and I don't know what customizations you've made to your user account's settings.
Comment 9 usr_40476 2025-05-04 11:11:41 UTC
(In reply to Nate Graham from comment #8)
> This would suggest a user account setup or configuration issue somewhere. It
> would be great if you can try to identify what it is. Unfortunately I can't
> really help you with this since the effect is pretty general-sounding, and I
> don't know what customizations you've made to your user account's settings.

it only disapears completely when all widgets are gone, not sure what could be improved but would be happy to see it get fixed!
Comment 10 Nate Graham 2025-05-06 14:47:42 UTC
Sounds like it's caused by one of the widgets, then. It would be great if you could figure out which one it is!
Comment 11 usr_40476 2025-05-06 22:18:30 UTC
Created attachment 181008 [details]
Screenshot of widget type in questions

i fixed it by making the refresh every 30 seconds, it is the time graph and on the one in the screenshot I have 90 points being plotted 88 CPU temps, (wouldn't it be 44 because of hyperthreading?), one for my GPU, and another one for my WiFi card. but the issue went away completely when i set all , my graphs to 30 seconds.
Comment 12 Nate Graham 2025-05-07 16:11:02 UTC
Aha, thanks! Since these are 1st-party widgets, I'll re-open the bug report for further investigation.
Comment 13 Nate Graham 2025-08-19 20:35:39 UTC

*** This bug has been marked as a duplicate of bug 484657 ***