Configure an external display (x86/x86_64)

Configuration

Since version 7.0, the configuration of external screens has been done from recalbox.conf​

open the recalbox.conf file located in the folder: /recalbox/share/system

Know the video outputs available

  • Connected to your recalbox in ssh​

  • In your ssh terminal type: xrandr

Which gives you as a result the available video outputs and their resolutions. Example:

eDP-1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1366x768 60.06*+
1360x768 59.80 59.96
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
VGA-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)

Once the output has been selected, enter it in this part of the recalbox.conf:

## Prefered external screen retrieved from ssh : xrandr
system.externalscreen.prefered=HDMI-1
## Force selected external screen to resolution ex : 1920x1080
system.externalscreen.forceresolution=1920x1080

More info

​https://doc.ubuntu-fr.org/xrandr​