Anno domini 2023 Wed, 22 Mar 01:01:04 -0500
Darrell Anderson via tde-users scripsit:
> I seem unable to configure mouse pointer acceleration. The mouse pointer
> moves way too fast, beyond usability. Acceleration is set to 1.0 in TCC.
> Sometimes I can change that setting, reset to 1.0, and the mouse pointer
> behaves but often not.
>
> Pretty much renders the desktop unusable.
>
> Ideas?
Try using "xinput" (you'll most likely have to install it first), then identify yout mouse device:
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Kensington Expert Mouse id=10 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ Cherry GmbH CHERRY Corded Device id=8 [slave keyboard (3)]
↳ Cherry GmbH CHERRY Corded Device id=9 [slave keyboard (3)]
Then look at the 'Coordinate Transformation Matrix' - you'll want to keep it for later - the last Value is the "speed":
$ xinput list-props 'Kensington Expert Mouse' | grep 'Coordinate Transformation Matrix'
Coordinate Transformation Matrix (164): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Then decrease speed by increasing the last value; e.g. make it 1/2 speed:
xinput set-prop 'Kensington Expert Mouse' 'Coordinate Transformation Matrix' 1 0 0 0 1 0 0 0 2
When you are happy put it into your .xsessionrc or .xinitrc
Please note that this affects "speed", not "acdceleration". YOu'll find for knobs to tur when you look at the acceleration properties:
$ xinput list-props 'Kensington Expert Mouse' | grep -i acce
libinput Accel Speed (314): 0.000000
libinput Accel Speed Default (315): 0.000000
libinput Accel Profiles Available (316): 1, 1
libinput Accel Profile Enabled (317): 1, 0
libinput Accel Profile Enabled Default (318): 1, 0
Nik
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