Gutsy with Randr 1.2 cannot support two video cards

[Craigus]

Shouldn't this be in the release notes ?

If the information here is correct: http://wiki.debian.org/XStrikeForce/HowToRandR12

VI.4. Multi-board support broken RandR 1.2 does not support multiple boards yet (it's planned for RandR 1.3). It means that any RandR 1.2 aware driver will crash the server if you have 2 boards. Even one board with a RandR 1.2 driver and another board with a classic driver does not work. It just crashes the X server.

That means that it is impossible to use two cards with Gutsy with xrandr aware drivers. The release notes mention that you can't mix cards with and without xrandr aware drivers, but there is no mention that you can't have two cards at all (without reverting both to legacy drivers).