On Mon, Aug 20, 2012 at 04:57:41PM +0100, Matthew Garrett wrote: > On Mon, Aug 20, 2012 at 10:56:33AM -0500, Seth Forshee wrote: > > On Mon, Aug 20, 2012 at 04:36:40PM +0100, Matthew Garrett wrote: > > > Won't this break the multiple cards with independent outputs case? > > > > Yes, if they don't have a switcheroo handler. I only have experience > > with one such machine, which had optimus graphics. My recollection is > > that it did have a switcheroo handler, which was only capable of > > controlling power to the discrete card. > > So if I have a desktop machine and install two graphics cards? Yeah, that would likely be broken. I'm not sure how we support both of these cases without doing something more like what I originally proposed, i.e. registering the LVDS connector even if it doesn't look like a panel is attached. I still honestly favor that approach, although it does come with its own set of challenges. The only other option I can come up with is to reprobe LVDS after switcheroo and add the connector at that time. I haven't investigated this option in detail, but at first glance it looks like there are at least some places where DRM isn't prepared to cope with adding connectors after initialization. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
