VGA output from Powerbook G4 (Radeon 9000 Mobility)

[Jonathan Walton]

On Fri, 2003-07-04 at 09:36, Tony Kay wrote:
> Is there a simple way to drive an external VGA screen/projector from G4 
> PB running YDL 3.0? Mirroring is acceptable though dual display would be 
> handy.

on the Pismo, you do it by booting with the kernel argument:
     video=aty128fb:lcd:1,crt:1
which can be done by adding the following to the appropriate
image=... section of your yaboot.conf file:
     append = "video=aty128fb:lcd:1,crt:1"

Those are specific to the Pismo's Rage128 graphics chip, but I wouldn't
be surprised if the radeon 9000 supports identical or similar arguments.
I figured these out by looking at the graphics-card source code, so I'd
suggest that as a next-step.

Jonathan