Adam K Kirchhoff wrote: > Could you give a quick explanation, just for my understanding, of the > differences between the dualhead Matrox cards (which support the DRI on > the primary head) and the dualhead Radeon cards (which do not, currently).
DRI requires a hardware cursor. Matrox does not support a hardware cursor on the secondary head for the G400 (which was the target when we wrote dual head support for the driver). Consequently, that driver was written to make sure the DRI was never run on the secondary head. Since the ATI driver could support DRI on the second head, it's possible that when dual head support was added, that the entire DRI was disabled for dual head. It is likely that you could get the DRI running on the primary head and disabled on the secondary head quite easily for the Radeon. This would be effectively the same mode as the matrox driver supports. Any more detailed questions on what needs to change in the Radeon would need to be addressed by the Radeon maintainers. I recommend starting with Kevin Martin, but there are others who have been deep into this driver. Regards, Jens -- /\ Jens Owen / \/\ _ [EMAIL PROTECTED] / \ \ \ Steamboat Springs, Colorado ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Bringing you mounds of caffeinated joy. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel