A college just updated to karmic.
he has i965GM
Compiz working perfectly on 2048x768 and 2304x1024
So this is only i915/i945 chipset problem.
@Viktor
If I'm not mistaken, "Virtual" line is in KMS mode (default in karmic) irrelevant.
Kernel is now managing resolutions, not xserver, and according to hardware abilities.
A college just updated to karmic.
he has i965GM
Compiz working perfectly on 2048x768 and 2304x1024
So this is only i915/i945 chipset problem.
@Viktor
If I'm not mistaken, "Virtual" line is in KMS mode (default in karmic) irrelevant.
Kernel is now managing resolutions, not xserver, and according to hardware abilities.