Current support and roadmap for discrete graphics card hot switching

[Daniel Stone]

On Thu, Jan 15, 2009 at 01:05:10PM +0000, Alan Cox wrote:
> On Thu, 15 Jan 2009 10:39:44 +0000
> Albert Vilella <avilella at gmail.com> wrote:
> > > > What is the current support and roadmap for discrete graphics card hot
> > > > switching in Xorg?
> > >
> > > OLPC does automatic switching of display controller for power management.
> > 
> > Interesting. So the OLPC also has a discrete and an integrated graphics
> > card?
> > Are these Intel or what brand?
> 
> It has a dumb frame buffer that can run with the main video card turned
> off, so the image can be updated on the dumb fb and the main video
> powered down as much as possible.

Right, which reduces it to a simple power management issue akin to
powering down the 3D core on any modern chipset when you're not doing
any rendering.

Adding different devices with separate drivers is another matter
altogether.

Cheers,
Daniel
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: Digital signature
URL: <http://lists.x.org/archives/xorg/attachments/20090115/aa6f35cb/attachment.pgp>