On Wed, 2022-05-25 at 18:45 +0200, Thomas Zimmermann wrote:

I don't mind adding DRM support for BootX displays, but getting the 
necessary test HW with a suitable Linux seems to be laborious. Would
a  G4 Powerbook work?

Probably not unfortunately... it's going to be tricky. I might sitll
have some old BootX-based machines somewhere in storage I could try to
dig out, but it might not be worth bothering too much...

Cheers,
Ben.