Custom keymap for Logitech MX Master 2S mouse on Ubuntu

customize-mx-master-ubuntu.md

First, install Solaar to see the battery level on the taskbar

sudo apt-get install solaar

To remap the keys, install

sudo apt-get install xbindkeys xautomation

Then, launch xev to get the keyboard or mouse event to bind

xev

# grep button
xev | grep -i button

Create the configuration file for xbindkeys

nano ~/.xbindkeysrc

Here is an example of this file that map the Back and Forward buttons to BackSpace and Return respectively

# Mouse key codes
# -------------------------
# thumb wheel up   => b:6
# thumb wheel down => b:7
# backward button  => b:8
# forward button   => b:9
# -------------------------

# Crl Alt Down
"xdotool key 0xffe3+0xffe9+0xff54"
 b:7

# Crl Alt Up
"xdotool key 0xffe3+0xffe9+0xff52"
 b:6

# increase volume and unmute
"amixer -D pulse set Master 4000+ unmute"
 b:9

# lower volume
"amixer -D pulse set Master 4000-"
 b:8 

# previous song
#"xte 'key XF86AudioPrev'"
# b:8

# next song
#"xte 'key XF86AudioNext'"
# b:8

Use xdotool

# Install
sudo apt-get install -y xdotool

See the list of xdotool key codes here

To test your binding

xbindkeys -v

To start xbindkeys

xbindkeys

To find key code

xbindkeys --key

// or

xbindkeys --multikey

If you change the key map, you have to restart xbindkeys by following command

killall xbindkeys && xbindkeys