slides from my talk at DDC

[Waldo Bastian]

On Thursday 28 July 2005 03:48, Jon Smirl wrote:
> On 7/27/05, Dave Airlie <airlied at gmail.com> wrote:
> > Some issues I don't mention that need thinking about are going to be
> > how mode setting interacts with virtual screens, and
> > merged-framebuffer type things... (i.e. you want to set two different
> > modes on the CRTCs but only have a single framebuffer, the mode
> > setting APIs I've looked at don't seem to cover this too well... but
> > maybe they don't need to.
>
> In my original scheme if you owned both heads the valid merged fbmodes
> would be added to the mode list. You can generate the valid list by
> knowing the chip capability and the DDC from both of the monitors. If
> you then set a mergefb mode both monitor would change mode if needed
> and the CRTC would be adjusted for the new resolution. Set either
> monitor back to a non-merged mode to cancel.

Just to make sure I understand where this fits in: lack of this is one of the 
reasons it's so difficult to get laptops working correctly with projectors at 
the moment, right?

Cheers,
Waldo
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