Hi, I would like to be able to read the current status of each individual graphics card, whether they are currently in retrace or not, and also how to read/write the registers on each graphics card that store hsync/vsync values. There are literature on vga programming which does about the same job except that they are on a single graphics card. For example, simply reading the port 3dah tells whether the screen is being traced. However, I guess this only works for one graphics card.
I guess for multihead display, one of the cards is still using the normal vga ports: 03c0 - 03df. Registers for other cards are rellocated somewhere else. Anyway to find out? I don't have much experience in this area. Your help is really appreciated. Thanks in advance. Jihong ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click -- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
