When adding Option "ModeDebug" "true" with KMS the only differences in the log I noticed are:
-(==) Log file: "/var/log/Xorg.1.log", Time: Tue Jul 7 14:32:26 2009 +(==) Log file: "/var/log/Xorg.1.log", Time: Tue Jul 7 14:35:02 2009
+(**) intel(0): Option "ModeDebug" "true"
-(II) intel(0): 0x05000000-0x053fffff: front buffer (4096 kB) X tiled -(II) intel(0): 0x04400000-0x04409fff: HW cursors (40 kB) +(II) intel(0): 0x08000000-0x083fffff: front buffer (4096 kB) X tiled +(II) intel(0): 0x07e00000-0x07e09fff: HW cursors (40 kB)
When adding Option "ModeDebug" "true" with KMS the only differences in the log I noticed are:
-(==) Log file: "/var/log/ Xorg.1. log", Time: Tue Jul 7 14:32:26 2009 Xorg.1. log", Time: Tue Jul 7 14:35:02 2009
+(==) Log file: "/var/log/
+(**) intel(0): Option "ModeDebug" "true"
-(II) intel(0): 0x05000000- 0x053fffff: front buffer (4096 kB) X tiled 0x04409fff: HW cursors (40 kB) 0x083fffff: front buffer (4096 kB) X tiled 0x07e09fff: HW cursors (40 kB)
-(II) intel(0): 0x04400000-
+(II) intel(0): 0x08000000-
+(II) intel(0): 0x07e00000-