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display
xrandr
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URL:
https://askubuntu.com/q/1178690
Title:
Disabling external monitor with xrandr also disables laptop screen
ID:
/2019/10/04/Disabling-external-monitor-with-xrandr-also-disables-laptop-screen
Created:
October 4, 2019
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April 21, 2025
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Iām not using i3 windowing manager but what could be happening here is external monitor is the primary monitor and laptop display mirrors it. Either way create this bash script:
#!/bin/bash
xrandr --output DP1 --off
xrandr --output eDP1 --auto --primary
Mark the script as executable: chmod a+x /path/to/scriptname
Then call the script with /path/to/scriptname
Replace eDP1 with your laptop monitor name discovered using:
xrandr | grep " connected"