https://bugs.kde.org/show_bug.cgi?id=468550
Bug ID: 468550
Summary: [X11, Libinput] Selecting flat mouse acceleration
profile does nothing
Classification: Plasma
Product: kwin
Version: 5.27.4
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: libinput
Assignee: kwin-bugs-n...@kde.org
Reporter: tseew...@gmail.com
Target Milestone: ---
SUMMARY
Using the mouse settings menu to select a 'flat' pointer acceleration profile
does not properly set the libinput property, and as a result acceleration
cannot be disabled.
This problem started occurring after upgrading from Fedora 37 to Fedora 38, and
I am using Xorg.
I am able to set a flat acceleration profile using xinput , so this issue
appears to be with Plasma.
STEPS TO REPRODUCE
1. Open mouse settings
2. Select flat acceleration profile
3. Apply settings
4. Check the mouse acceleration profile with xinput
OBSERVED RESULT
The acceleration profile is not changed.
xinput list-props 'BenQ ZOWIE BenQ ZOWIE Gaming Mouse' | grep -i profile
libinput Accel Profiles Available (305): 1, 1, 1
libinput Accel Profile Enabled (306): 1, 0, 0
libinput Accel Profile Enabled Default (307): 1, 0, 0
EXPECTED RESULT
I expect that the flat profile is set, which is "0, 1" not "1, 0, 0".
See:
https://wiki.archlinux.org/title/Mouse_acceleration#Disabling_mouse_acceleration
xinput list-props 'BenQ ZOWIE BenQ ZOWIE Gaming Mouse' | grep -i profile
libinput Accel Profiles Available (305): 1, 1, 1
libinput Accel Profile Enabled (306): 0, 1
libinput Accel Profile Enabled Default (307): 1, 0, 0
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 38
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 22.12.3
Qt Version: 5.15.9
ADDITIONAL INFORMATION
To set a flat acceleration profile with xinput: input --set-prop 'BenQ ZOWIE
BenQ ZOWIE Gaming Mouse' 'libinput Accel Profile Enabled' 0, 1
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