Bug 465171 - scaling changes mouse acceleration/sensitivity
Summary: scaling changes mouse acceleration/sensitivity
Status: RESOLVED INTENTIONAL
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (other bugs)
Version First Reported In: git master
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-02-02 13:26 UTC by Tom Englund
Modified: 2023-02-02 13:30 UTC (History)
1 user (show)

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Description Tom Englund 2023-02-02 13:26:28 UTC 
mouse sensitivity gets changed with scaling, setting it to 150% i assume it now means im moving 1.5 pixels per same distance moved on touchpad or mouse as if i didnt scale it. it means acceleration profile is changed with its ramp up time etc also feels like its more "unprecise". i guess this is a sideffect of scaling when the idea was simply to enlarge my fonts.

SUMMARY
with scaling set to 150%, mouse sensitivity changed.


STEPS TO REPRODUCE
1. Change the scaling and move mouse around


OBSERVED RESULT
changed sensitivity and acceleration.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.26.90
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Kernel Version: 6.1.8-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800H with Radeon Graphics
Memory: 30,7 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: Acer
Product Name: Nitro AN515-45
Comment 1 David Edmundson 2023-02-02 13:30:43 UTC 
>mouse sensitivity gets changed with scaling

Yes. It should move as fast across the screen if you have a 4k monitor at 2x or a regular monitor.

> also feels like its more "unprecise"

it's not.