@alan-miller3 said in need help understanding screen size/orientation etc.:
@dankcushions
ok, physically my display's visible area is 15 x 12 inches. That's a 5:4 ratio.
So I changed my screen resolution to 1280x1024@60Hz (also a 5:4 ratio) and rebooted.
if that’s the native resolution of the screen then fine
vide_rotation=3 is still set in /opt/retropie/configs/all/retroarch.cfg
After starting a game and hitting tab, the video options offer 3:4 or 7:9 or cocktail.
tab should get you to the MAME menu (not retroarch(. you probably don’t want to to be changing options there.
Disabling any of the options (backdrops, overlays, bezels, marquees, etc.) doesn't seem to do anything.
because bezel project adds retroarch bezels, not MAME ones. how did you install it? presumably the same script permits the disabling/removal of the bezels.
or did you use a pre-configured image?
new2.jpg
If I revert the video_rotation (back to 0) in /opt/retropie/configs/all/retroarch.cfg
I still get the same 11 x 11 screen with "Arcade" bezels but without rotation so players 1 and 2 are both looking at the screen from the side.
Is it the fact that the original game was intended to be on a square screen?
no, it a a 4:3 crt screen rotated on its side (so effectively 3:4)
b1b9c82c-b29a-4800-9a43-098f4b48d49e-image.jpeg
https://i.ebayimg.com/images/g/hg4AAOSwMBZiVBKN/s-l500.jpg