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My touchpad speed is too slow (it takes me two full swipes to get the mouse from one side of the screen to the other). This might be because I'm on a 4K monitor. I have increased the touchpad speed to its maximum setting in the Ubuntu 18.04 Settings. I have also checked the speed setting in the terminal using xinput, e.g.

xinput --list --short

Which returns 15 as the device ID of my touchpad. When I execute xinput --list-props 15, the libinput Accel Speed is 1. According to the libinput docs, this must be in the range [-1,1] and is thus at the maximum value. Is there a way to increase the mouse speed further?

Elcor
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  • After carrying out the suggestion of the following link, https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1026046 , I have exactly the same problem with Ubuntu 18.04. Did anyone find a solution for this problem? Thanks – thosecars82 Jan 05 '21 at 23:38

1 Answers1

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List all properties in your mouse/touchpad using xinput --list-props 11 (MY TOUCHPAD ID IS 11, yours will be different) and see the id of the property Device Accel Constant Deceleration. Now type the command xinput --set-prop 11 268 0.3 (MY TOUCHPAD DECELERATION PROPERTY ID IS 268, yours will be different) to decrease your mouse/touchpad deceleration. Since it's pretty tedious to type these two commands everytime you Log in, put these two commands in the end of the /home/{your user name}/.bashrc file so that these get executed automatically whenever you Log in.

This solution has a minor error though. With time, you'll notice that your mouse/touchpad ID will often switch between a couple of values. You may also have seen that. Instead of using the device ID you can use its name as shown in --list-props. You may then use xinput --set-prop "SYNA8005:00 06CB:CD8C Touchpad" 268 0.3 instead of using the ID.