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as the questions says I want to disable mouse acceleration for my mouse, but keep it for my touchpad. I use a fresh install of Ubuntu 15.10 with unity. Can someone help?

1 Answers1

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There are several utilities for playing with mouse acceleration (for example, xset m changes all connected devices and xinput --set-ptr-feedback <device> changes a specific device; see the xset and xinput man pages for further details), but these settings will be lost on reboot.

A more permanent solution would be to create a new file in /usr/share/X11/xorg.conf.d/ called something like 60-mouse-no-accel.conf with the following content

# Remove acceleration from actual mice (but not touchpads, etc)

Section "InputClass"
    Identifier "Disable mouse acceleration"
    MatchIsPointer "on"
    MatchDevicePath "/dev/input/event*"

    # Set mouse acceleration.  Defaults to 2/1 4
    # Query using xset q | grep -A 1 Pointer
    # Set using xset m 2/1 4
    #  or using xinput --set-ptr-feedback <device> 4 2 1
    # Set acceleration to zero to disable
    Option "AccelerationNumerator" "0"
    Option "AccelerationDenominator" "1"
    Option "AccelerationThreshold" "4"
EndSection
Gsxr1k
  • 475
  • This worked just a little. First of all a tricky part is to identify my mouse. I now use: MatchDevicePath "/dev/input/by-id/usb-Logitech_G500_343767B2CD0018-mouse" –  Nov 28 '15 at 17:30
  • Thank you for your help. This worked just a little. First of all a tricky part is to identify my mouse. I now use: MatchDevicePath "/dev/input/by-id/usb-Logitech_G500_343767B2CD0018-mouse"

    But: This just works on the login screen. Once I have logged in, the acceleration gets restetted. So I guess the must be a hidden config in Unity. :(

    Anyway, I have added a File to ~/.config/autostart witch resets the acceleration via xinput. That's not a nice way, but I guess it works.

     –  Nov 28 '15 at 17:36