Solved Recalbox 7 laptop switch external screen function x86_64

[terri123]

Hello
where can i find this option?
in changelog is written
"Add laptop switch external screen function only for x86_64 x86"

On Recalbox 6.1.1 this was not a problem it automatic mirroed the screen to the HDMI Port. But now on Recalbox 7 it output a video signal until the boot video end and then nothing.

I can activate the HDMI output by this command via SSH
xrandr --output HDMI2 --mode 1920x1080 --primary --output eDP1 --off

But i do not want to ssh into the Recalbox everytime i reboot.

I tried to build a custom.sh in recalbox/share/system/ with this content

#!/bin/bash
echo 500 > /sys/class/backlight/intel_backlight/brightness
time -p sleep 10
xrandr --output HDMI2 --mode 1920x1080

After a reboot the screen brightness goes up but the video does not output to HDMI.

Any one know a good solution for that?

[terri123]

I found a way for me that it automatic change the display output when a HDMI cable is connectet and i do a reboot or a normal boot.

I just changed something in this file

/recalbox/share/system/recalbox.conf

I changed this

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

to this

## Prefered external screen retrieved from ssh : xrandr
system.externalscreen.prefered=HDMI2
## Force selected external screen to resolution ex : 1920x1080
system.externalscreen.forceresolution=1920x1080

This is working nice for me.

Maybe it will help someone

But i could not find the switch function that is called in the changelog
("Add laptop switch external screen function only for x86_64 x86")

[Zeke]

Thank you @terri123, I didn't have time to saerch that but I needed it to stop connecting and disconnecting my Monitors / TV

[davidb2111]

Hi @terri123

Nice trick! thanks for sharing.
I'll take a look at the documentation and check for this.

David