"No suitable video mode found" black screen on old iMac

[r1ggles]

Lakka works perfectly but I much rather use Recalbox, however this issue is driving me crazy, edited the config numerous times but no luck, and basically found nothing regarding recalbox about this issue in my search results.

The iMac is a 24" one from around 2007 turned it into an arcade machine https://i.imgur.com/vHBSOxm.jpg so really hope there's a solution, super appreciated!

[Zing]

@r1ggles Try the BETA version of the recalbox:
https://forum.recalbox.com/topic/16576/february-2019-beta-version

If it does not work, say more information about the problem: When do you see this black screen? What exactly have you tried to change?

[r1ggles]

@zing Just gave the beta a try, the USB drive I'm using is the same as I used when I was running Lakka.
What happens is that after giving me the blue window asking me how to boot recalbox it gives me "error: no suitable video mode found" "booting into blind mode"

After that point the screen flashes white once before staying black.

As for what I tested I tried editing the config with hdmi mode 16, just to test ( and some others I can't recall sorry ). 1920x1200 is the native resolution of the display, there's 3GB of ram installed in case that would matter.

Thanks!

[Zing]

@r1ggles It seems like a problem in grub, read these articles:
https://unix.stackexchange.com/questions/271101/grub-error-no-suitable-video-mode-found
http://lists.gnu.org/archive/html/help-grub/2018-01/msg00009.html

[r1ggles]

@zing Thanks! Did both those things, copied unicode.pf2 and added the insmod all_video line to my menu entry, worked only in combination with starting it in verbose, had tried insmod all_video yesterday quickly but it didn't work because of that.