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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Darrell Anderson via tde-users wrote:

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?

Use the TDE Control Center (TCC) under Perifery > Mouse

On 3/21/23 11:01 PM, Darrell Anderson via tde-users wrote:

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.

Do you have a different mouse you can try?

I use several different machines with TDE, and several different mice, and frequently boot a customer's machine to a TDE live disk for one reason or another. When I need a mouse on a workbench, I grab one from a pile of spares I have. It's only once in a while that I run into a mouse that doesn't work perfectly with no adjustment, but when it happens it's usually some bottom-of-the-barrel cheapie, and usually the problem is that they're way too sensitive. When I have to buy mice, I generally stick to the basic Dell or HP corded USB mice that came with a lot of computers, because they work well and can be had at any thrift store for a buck or two.

All that to say, try a different mouse before you blame TDE.