How can I adjust the mouse scroll speed?

I removed the USB dongle that comes with my wireless mouse and plugged it back and fixed my scrolling speed instantly.

Confirmed working on 20.04:

1. Install imwheel and adjust (to make things work):

• Run sudo apt install imwheel
• Run bash <(curl -s http://www.nicknorton.net/mousewheel.sh)
• Using the slider adjust the scroll speed 'multiplier'. (I like it on 4/5)

2. Add imwheel as a startup application (to make things continue working after restart):

• Open Apps -> Startup Applications
• Add a new entry to the bottom of the list: Name= Wheel Scroll Speed, Command= imwheel, Comment= Activates wheel scroll speed fix on system startup (or whatever you like)

Important note:

If you have extra mouse buttons, this might mess things up as far as their functionality. If you find some buttons mis-behaving after following these instructions, you can always go "back" by removing imwheel as a startup application, and restarting your computer.

However, you can still make this work by specifying which buttons to modify in the imwheel command.

imwheel -b "45" this might work for certain mouse types.

imwheel -b "4 5 6 7" this might also work.

In any case, you can try and figure out the button numbers for you own specific mouse scroll wheel, and specify them and only them.

Use the command with button numbers both when running for the first time, and as the command you input as a startup application.

Solution excerpted from here

Important note based on this

To change the mouse parameters:

• list the peripherals, note the good number with the device name of the mouse!

  xinput list
  

• list parameters from peripheral number 9

  xinput list-props 9
  

• set the acceleration of peripheral 9 to value 3. The higher the value is, the more you divide the acceleration. Acceleration is maximum for a value equal to 1. The "basis" value seems to be 1.7, for me...

  xinput set-prop 9 'Device Accel Constant Deceleration' 3
  

To permanently set the change :
A hidden file in your directory is ".profile" (Ctrl+H to see hidden files) Double click on it and open it. Copy paste the previous command at the end. That's it!

P.S. to apply the same command for all users you can edit the file /etc/profile (not an hidden file).

Have fun.

First check which device is the mouse:

xinput list

Now pick the ID of your mouse there, and list its current settings:

xinput list-props <device-id>

then change the settings like so where Evdev scrolling distance [vertical] [horizontal] [dial]

xinput set-prop <device-id> 'Evdev Scrolling Distance' 1 3 5

where the combination of the last three numbers is mouse-dependent:

• first number, the direction of scrolling (minus reverse)
• second number, speed of scrolling somehow
• third number, speed of scrolling somehow
• Changing these values to bigger numbers means you scroll slower (AgentME).

I have a Logitech PerformanceMouse MX and none of the solutions here worked. The only thing that worked for me was using some parts of this project.

1. Add this PPA and then install xserver-xorg-input-evdev.
2. Check out the Solaar project and run rules.d/install.sh. It will copy the udev rules to the appropriate location and ask permissions if necessary.
3. Remove the receiver and plug it back in.
4. Add yourself to the plugdev group: $ sudo gpasswd -a <your-username plugdev
5. Log out and log back in.

Now you can set your scroll-speed with the following xinput commands (source):

$ xinput set-prop <devnum> "Evdev Scrolling Distance" 8 1 1 # for smooth scroll
$ xinput set-prop <devnum> "Evdev Scrolling Distance" -8 1 1 # for smooth 'natural' scroll

Changing the 8 to a lower value increases the sensitivity. Flipping it to negative changes the direction of scroll. Increasing the value decreases sensitivity.

This solution works for me:

sudo apt-get install imwheel zenity

Create a bash script and insert this:

#!/bin/bash
# Version 0.1 Tuesday, 07 May 2013
# Comments and complaints http://www.nicknorton.net
# GUI for mouse wheel speed using imwheel in Gnome
# imwheel needs to be installed for this script to work
# sudo apt-get install imwheel
# Pretty much hard wired to only use a mouse with
# left, right and wheel in the middle.
# If you have a mouse with complications or special needs,
# use the command xev to find what your wheel does.
#
### see if imwheel config exists, if not create it ###
if [ ! -f ~/.imwheelrc ]
then

cat >~/.imwheelrc<<EOF
".*"
None, Up, Button4, 1
None, Down, Button5, 1
Control_L, Up, Control_L|Button4
Control_L, Down, Control_L|Button5
Shift_L, Up, Shift_L|Button4
Shift_L, Down, Shift_L|Button5
EOF

fi
##########################################################

CURRENT_VALUE=$(awk -F 'Button4,' '{print $2}' ~/.imwheelrc)

NEW_VALUE=$(zenity --scale --window-icon=info --ok-label=Apply --title="Wheelies" --text "Mouse wheel speed:" --min-value=1 --max-value=100 --value="$CURRENT_VALUE" --step 1)

if [ "$NEW_VALUE" == "" ];
then exit 0
fi

sed -i "s/\($TARGET_KEY *Button4, *\).*/\1$NEW_VALUE/" ~/.imwheelrc # find the string Button4, and write new value.
sed -i "s/\($TARGET_KEY *Button5, *\).*/\1$NEW_VALUE/" ~/.imwheelrc # find the string Button5, and write new value.

cat ~/.imwheelrc
imwheel -kill

# END OF SCRIPT FILE

Now run the script and set your desired mouse wheel speed.

Thanks to: http://www.nicknorton.net/?q=node/10

I have written a simple script which allows you to find which device has this property ( The script basically iterates over all xinput devices and lists only those which have any property containing scroll).

 xinput list | cut -f2 | cut -f2 -d'=' | xargs -d $'\n' -I'{}' sh -c "xinput list-props '{}' | grep -iq scroll && (echo Listing dev id '{}'; xinput list-props '{}')"
 xinput --set-prop 11 295

Note, that for example in Firefox you can set in about:config

mousewheel.system_scroll_override_on_root_content.vertical.factor

Remember to set

mousewheel.system_scroll_override_on_root_content.enabled

to true.

Aside from all of these You can use the old good synaptics dirver for this (Yeah I know it is not supported anymore but lets be honest libinput documentation sucks hard).
If you are on 18.04 or above just install synaptics:

sudo apt-get install xserver-xorg-input-synaptics

now go to /usr/share/X11/xorg.conf.d and just edit the file 70-synaptics.conf

cd /usr/share/X11/xorg.conf.d
sudo nano 70-synaptics.conf

find the section Section "InputClass" Identifier "touchpad catchall" then add these options:

Option "VertScrollDelta" "16"
Option "HorizScrollDelta" "16"

The default number is 26 the lower the number it is faster to scroll, the higher it is slower to scroll. Finally it should look like this:

Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
#       MatchDevicePath "/dev/input/event*"
        Option "VertScrollDelta" "16"
        Option "HorizScrollDelta" "16"
EndSection

Save the file and close it (Ctrl + O then Enter then Ctrl + X).

Log out and back in for the changes to take effect.

Synaptics driver is a driver with huge options I dont know who in a world has decided to move to the NO OPTION libinput.
Other options can be found at:
https://www.x.org/archive/X11R7.5/doc/man/man4/synaptics.4.html

Thanks to this new pull request on https://gitlab.freedesktop.org/xorg/driver/xf86-input-libinput/-/merge_requests/12 (WIP: Add scroll distance scale setting ), we will be able to change the scroll speed some time in the future (i.e., after that pull request gets merged and the package xserver-xorg-input-libinput is updated with it) without having to use bugged hacks as imwheel.

For now, you can install it directly from the source code:

1. WARNING: misconfiguration of an X input driver may leave you without usable input devices in your X session. Use with caution.
   • You can help yourself recover from an input problem by allowing an SSH connection to be performed right after your computer boot. So, if you do not have any usable input on your computer, you can always connect to it using the SSH connection to try and fix the input problem/misconfiguration.
2. First check which version of xserver-xorg-input-libinput is available on your system:
   1. sudo apt-get install xserver-xorg-input-libinput
   2. dpkg -l | grep xserver-xorg-input-libinput

      ii  xserver-xorg-input-libinput                   0.29.0-1                              amd64        X.Org X server -- libinput input driver
      

3. Then, checkout on the git tag as 0.29.0 correspondent to the installed version 0.29.0 on the package manager.
4. Edit the source code, applying the following patch:

   --- a/src/xf86libinput.c
   +++ b/src/xf86libinput.c
   @@ -1651,6 +1651,7 @@ calculate_axis_value(struct xf86libinput *driver_data,
           value = libinput_event_pointer_get_axis_value(event, axis);
       }
   
   +   value *= 3;
       *value_out = value;
   
       return true;
   

5. Change the value of 3 on value *= 3; accordingly to how much you would like to change your scroll speed. To reduce the scroll speed, you can use lower values like 0.9, 0.99, 0.2, etc.
6. After configuring a desired value, build and install your changes:
   1. sudo apt-get build-dep libinput
   2. autoreconf -vif
   3. ./configure --prefix=/usr
   4. make
   5. make install
7. In order for changes to take effect, you will have to logout and login of your xorg/user session.
8. To revert your changes, just reinstall the xserver-xorg-input-libinput using your package manager, i.e., sudo apt-get install xserver-xorg-input-libinput --reinstall

I'm using a "Logitech MAX Master 2". I've tried the solutions in here but what it only works was intalling solaar and modify the configuration through it. Hope this helps.