I am running Ubuntu 18.04.2 LTS with the standard gdm3 display manager. I would need to adjust the mouse speed, which I can do with xinput, using the following two commands in my case:

xinput set-prop 9 287 0, 1
xinput set-prop 9 284 -0.9

The only problem is that I can't make these settings permanent after reboot. If I place them into ~/.bashrc, then they do work fine after opening a new terminal window, but I would like to achieve the same already when the desktop has started (preferable already being active at the long-in screen).

Following this thread I did try to add these commands into ~/.xsessionrc, but also to several other different locations, like: /etc/profiles, ~/.xinputrc, /etc/X11/xinit/xinitrc, or /etc/X11/xinit/xinputrc, but none of them had effect after xwindows was up.

Any suggestions directing me to the correct path would be highly appreciated!

xinput details: (unfortunately there are multiple ids with the same name "Razer Razer DeathAdder Elite", hence I have to use the id number = 9):

⎡ Virtual core pointer                       id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Razer Razer DeathAdder Elite              id=9    [slave  pointer  (2)]
⎜   ↳ Razer Razer DeathAdder Elite              id=10   [slave  pointer  (2)]
⎜   ↳ Razer Razer Ornata Chroma                 id=13   [slave  pointer  (2)]
⎜   ↳ Razer Razer Ornata Chroma                 id=14   [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)]
    ↳ HD Webcam C525                            id=8    [slave  keyboard (3)]
    ↳ Razer Razer DeathAdder Elite              id=11   [slave  keyboard (3)]
    ↳ Razer Razer Ornata Chroma                 id=12   [slave  keyboard (3)]
    ↳ Razer Razer DeathAdder Elite              id=15   [slave  keyboard (3)]
    ↳ Razer Razer Ornata Chroma                 id=16   [slave  keyboard (3)]

xinput list-props 9 output, highlighting the two relevant ones:

    libinput Accel Speed (284):   -0.900000
    libinput Accel Speed Default (285): 0.000000
    libinput Accel Profiles Available (286):    1, 1
    libinput Accel Profile Enabled (287): 0, 1
    libinput Accel Profile Enabled Default (288):   1, 0

  • 1
    You can set it using Options in a file in /usr/share/X11/xorg.conf.d.
    – Pilot6
    Feb 24 '19 at 11:28
  • Thanks @Pilot6! I am trying to google around how to do that, but was unable to find good references. I am adding the xinput info into the original quesiton, could you please help translating device=9 and properties 287 & 284 into xorg.conf.d Option entries?
    – Zorgmorduk
    Feb 24 '19 at 12:53

Option 1:

Edit /usr/share/X11/xorg.conf.d/40-libinput.conf

And add there 2 lines to the first section before EndSection:

Option "AccelProfile" "flat"
Option "AccelSpeed" "-0.9"

Like this

Section "InputClass"
    Identifier "libinput pointer catchall"
    MatchIsPointer "on"
    MatchDevicePath "/dev/input/event*"
    Driver "libinput"
    Option "AccelProfile" "flat"
    Option "AccelSpeed" "-0.9"

Option 2:

Use evdev instead of libinput.

Option 3:

Add the 2 commands into "Startup Applications"

  • Thanks! In my case the file is: /usr/share/X11/xorg.conf.d/40-libinput.conf, and have added the two Option lines exactly as you indicated. Unfortunately it does not have effect, and the settings are on their default after restart. I am trying now to add the same to /etc/... and report back.
    – Zorgmorduk
    Feb 24 '19 at 13:23
  • It should work in this file.
    – Pilot6
    Feb 24 '19 at 13:24
  • Try to add to other sections. Is it a mouse or touchpad?
    – Pilot6
    Feb 24 '19 at 13:25
  • It is a mouse. Unforunately it does not work. I've also tried to put into the end of /etc/X11/xorg.conf, but does not help neither. I have generated the xorg.conf file as suggested here: askubuntu.com/questions/4662/… .But will remove this now.
    – Zorgmorduk
    Feb 24 '19 at 13:29
  • In Ubuntu it's /usr/share/X11
    – Pilot6
    Feb 24 '19 at 13:39


  • Hit the "Windows" key
  • Type "Start" and click the "Startup Applications Preferences" icon.
  • In the "Startup Applications Preferences" window, click the "Add" button.
  • Enter a "Name" in the name field
  • Enter "xinput set-prop 9 287 0, 1" in the "Command" field
  • Give it a brief description in the "Description" field
  • Click "Add"
  • Repeat the above five (5) steps for the other command.
  • Alternatively, chain both commands into "xinput set-prop 9 287 0, 1 && xinput set-prop 9 284 -0.9" and enter that in the "Command" field.

I've found this approach both clean and effective for my touchpad, and it should work for the mouse as well. Best of luck.

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