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

Alex Deucher alexdeucher at gmail.com
Thu Aug 30 07:47:23 PDT 2007


On 8/30/07, Sjoerd Simons <sjoerd at luon.net> wrote:
> On Thu, Aug 30, 2007 at 10:13:34AM +0200, Michel Dänzer wrote:
> > 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.
>
> So it's something non-TDMS related that causes these problem when trying
> powerbook-duallink
>
> > 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.
>
> It's not. According to the documentation the maximum digital resolution is
> 1920x1200. But i'm pretty sure it uses an external TDMS (although not
> dual-link one, i talked to it via i2c
> trying to get my digital output to work), see
> http://bugs.freedesktop.org/show_bug.cgi?id=10418600 for more info.

got another bug id? :)

Alex



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