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@miguelmota
Last active September 30, 2022 02:15
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Linux Ubuntu i3 multi-monitor support using xrandr
# https://i3wm.org/docs/userguide.html#multi_monitor
# (AUTO) to auto setup
$ xrandr --auto
# if the position is not correct, then manually setup by first listing all the monitors
$ xrandr
Screen 0: minimum 320 x 200, current 2880 x 1800, maximum 16384 x 16384
eDP connected primary 2880x1800+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
2880x1800 59.99*+
1920x1200 59.95
1920x1080 60.00
1600x1200 59.95
1680x1050 60.00
1400x1050 60.00
1280x1024 59.95
1440x900 59.99
1280x960 59.99
1280x854 59.95
1280x800 59.96
1280x720 59.97
1152x768 59.95
1024x768 59.95
800x600 59.96
848x480 59.94
720x480 59.94
640x480 59.94
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected (normal left inverted right x axis y axis)
3840x2160 30.00 + 25.00 24.00 29.97 23.98
4096x2160 30.00 25.00 24.00 29.97 23.98
1920x1080 60.00 50.00 59.94 30.00 25.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1680x1050 59.88
1600x900 60.00
1280x1024 75.02 60.02
1440x900 59.90
1366x768 59.79
1280x800 59.91
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
# or list active monitors only
$ xrandr --listactivemonitors
Monitors: 2
0: +*eDP 2880/331x1800/207+0+0 eDP
1: +HDMI-0 3840/1872x2160/1053+0+0 HDMI-0
# (SECOND DISPLAY) place second HDMI screen to the right of main screen
$ xrandr --output HDMI-0 --auto --right-of eDP
# (MIRROR DISPLAY) mirror main screen on second display
$ xrandr --output HDMI-0 --auto --same-as eDP
# (TURN OFF SECOND DISPLAY)
$ xrandr --auto --output HDMI-0 --off
# (TURN OFF MAIN DISPLAY)
$ xrandr --auto --output eDP --off
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