When I started this thread, I had Monterey running with issues : wrong desktop resolution and sound half-working.
Dunno what I did wrong thereafter, but the whole thing crashed to death.
So : I took another HDD and tried with Big Sur. It works, but same issues : wrong resolution, and no sound at all (even if using same parameters on previously Monterey).
Then : I erased the Monterey HDD, and made a new and fresh install. It works too.
But wrong desktop resolution, and no sound at all.
About EFI : I tried tons of, but all went wrong with the issues above...
This AIO has a 23 inches embedded display, 1920x1080 => I can't have more than 1280x1024. Whatever I try, it always ends with a fail.
I'll check later for audio, but now alcid=33 does not work anymore. Weird.
I'll wait for any advice, and will not modify anything until then.
If you want to take a look, there's my last EFI folder.
