1. Created a database of broken displays and their associated fixes. 
Original patch from Brian S. Julin <bri@tull.umassp.edu>.  Only the
monitor manufacturer and model is checked, perhaps we can also check
for the serial number?

2. Added an all_null check in edid_checksum since the checksum will also be
zero if the entire block is zeroed.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>