Sorry, was out all weekend for a baseball tournament.
So, depending on your monitor preset, you should :
* as root, edit the kernel configuration file. Its path depends on UEFI or BIOS boot system. BIOS -> /boot/syslinux/syslinux.cfg UEFI -> /boot/EFI/syslinux/syslinux.cfg (that one is right out of memory, might be wrong)
* to edit for bios for example, type : sudo nano /boot/syslinux/syslinux.cfg
In that file, find the line starting with "append ..." You should see a video=???:640x480S I suppose. The
matters, it's the connector name and we're gonna use it right after
* at the end of that same line, append drm.edid_firmware=???:edid/arcade_31.bin replacing the
with the connector name found just before
* I strongly suggest you remove the video= parameter at that point since the resolution may interfere with the EDID one
* type reboot
* hope everything went right
If you can't edit, please connect your PC to the network, download putty for Windows, then in the IP field, just type GROOVYARCADE, then connect as arcade/arcade