xf86-video-ati randr-1.2 branch on PowerBook5,4 with RV350

[Michel Dänzer]

On Thu, 2007-08-30 at 09:57 +0200, Sjoerd Simons wrote:
> 
> Michel is right though. These models have an external TDMS for DVI, but it
> seems the VGA parts of the DVI connector are run of the internal one (does that
> make sense?).

Not quite I'm afraid. :) The digital part of the DVI connector can be
driven by the internal or an external TMDS.

> When using "powerbook-duallink" my DVI->VGA does work, but when
> running xrandr without options or starting an app using XV the external screen
> blanks momentarily.. Which is not the case when using "powerbook"

That may be expected. Does Apple's documentation claim that your model
is capable of driving a 30" cinema display? If so, I think the DVI
connector must use the external dual-link TMDS.


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer