@adamsdesk well, according to @rasteri zhis works because #MDA has it's own #DMA address space vs. #CGA / #HGA / #EGA / #VGA, so in theory #Linux should be able to implement this, tho I'm nit shure if current versions of Linux still support it.

• I really should read the #dcumentation, but I hoped someone on the #Fediverse would actually knows it...

That being said this does require a setup with a seperate #MDA card exclusively occupying it's address space and a #VGA adaptor that ignores it.

• Most #SOM|s and #embedded as well as #consumer #GPU|s don't do that but take on both address spaces and simply disconnect the MDA part in terms of #BIOS compatibility once they get switched into #VGA mode and only switch back when the VGA mode is turned off.

Also this combo is rather uncommon and basically died with multi-display cards in lieu of #TTY-Terminal access.

@deliri in your case I do blame @bananapi for not having released proper #dcumentation that would've avoided this problem entirely.

• So no wounder @raspberry_pi does own the #ARM64-#SBC market when competitiors don't even try to halfass what made #RaspberryPi great!