/create-android-display.sh
Last active Dec 1, 2019
Bash script to use an Android device as a second monitor for Linux. See https://blog.8bitbuddhism.com/2019/12/01/how-to-use-your-android-tablet-as-second-monitor/ for detailed instructions.
| #!/bin/bash | |
| # Make sure your Android device is plugged in and accessible over adb. | |
| #### Remember to enable virtual displays in xorg by adding the following to your configuration (e.g. /usr/share/X11/xorg.conf.d/20-virtual.conf) | |
| # Section "Device" | |
| # Identifier "intelgpu0" | |
| # Driver "intel" | |
| # Option "VirtualHeads" "1" | |
| #EndSection | |
| #### If you use AMD or Nvidia, change the Identifier and Driver options to match your GPU. | |
| W=1920 # Virtual display width | |
| H=1080 # Virtual display height | |
| O=VIRTUAL1 # The name of the virtual display (check using xrandr) | |
| P=eDP1 # The name of your physical display (check using xrandr) | |
| PW='$(xrandr --current | grep \* | awk '{print $1;}' | cut -d x -f 1)' | |
| # Create the virtual display | |
| gtf $W $H 60 | sed '3q;d' | sed 's/Modeline//g' | xargs xrandr --newmode | |
| gtf $W $H 60 | sed '3q;d' | sed 's/Modeline//g' | awk '{print $1;}' | sed 's/^.\(.*\).$/\1/' | xargs xrandr --addmode $O | |
| gtf $W $H 60 | sed '3q;d' | sed 's/Modeline//g' | awk '{print $1;}' | sed 's/^.\(.*\).$/\1/' | xargs xrandr --output $O --right-of $P --mode | |
| # Forward the VNC port to your device and start a VNC session | |
| adb reverse tcp:5900 tcp:5900 | |
| x11vnc -localhost -clip ${W}x${H}+${PW}+0 | |
| # When the session ends, turn off the virtual display | |
| xrandr --output $O --off |
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