Hi dude ,
Did you see that at the end of https://wiki.batocera.org/doku.php?id=display_issues
Batocera should be in full screen with the right resolution.
/!\ BUT /!\ if you reboot the Batocera system, you’ll have to do this again, the resolution is forced just for this boot, next boot, resolution will be reset to the highest available again.
We need to force it for every boot.
As you can see at the beginning of this tutorial, we copied the xinitrc file to a temporary folder.
We need to erase the current xinitrc file with our modified version. It is the same as the first code block, but reversed:****
cp ~/.xinitrc /etc/X11/xinit/xinitrc
Now, reboot your Batocera system, the display resolution should be good.
Also, xrandr can do screen rotation: very useful for old vertical screen arcade machines !
Hope this was easy for all.
Probably your problem comes form that …
Ps : For me part I forgot to do that cp ~/.xinitrc /etc/X11/xinit/xinitrc and batocera-save-overlay