Bug 479656 - Mouse cursor stutters moving over Task Manager with window previews enabled
Summary: Mouse cursor stutters moving over Task Manager with window previews enabled
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: Task Manager and Icons-Only Task Manager widgets (other bugs)
Version First Reported In: 5.27.10
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-01-11 17:09 UTC by martin-kokos
Modified: 2024-02-15 22:24 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In: 6.0
Sentry Crash Report:

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Description martin-kokos 2024-01-11 17:09:46 UTC 
Mouse cursor stutters moving over Task Manager with window previews enabled. This is mostly noticeable with reduced power profile on a laptop and the processor on lower clock. (XPS13 intel i7-1165G7). For comparison, similar feature in Chrome, Tab previews on hover work smoothly under same circumstances.


STEPS TO REPRODUCE
1. Be on laptop () and battery profile with reduced speed
2. Have several windows open
3. Move mouse cursor over Task Manager

OBSERVED RESULT
The mouse cursor stutters

EXPECTED RESULT
The cursor should move smoothly

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 5.27.10
(available in About System)
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.113.0
Qt Version: 5.15.11

ADDITIONAL INFORMATION
Using Wayland
I don't know if there is some inefficiency rendering window preview, but even if there is, it shouldn't impact the smoothness of movement of mouse cursor. Even if there isn't enough time for window preview to appear, the cursor stutters.
Comment 1 Nate Graham 2024-02-15 22:24:09 UTC 
This is fixed in Plasma 6 now.