Upon starting X with multipl cards, the machine crashes. I've set a bug report to firstname.lastname@example.org
but it bounced. I've tried most combinations of FreeBSD versions and X (that actually find multiple cards), with similar results. Here's the data from a 6.0 (8th Jan) version with 2 MX4000 cards runngin xorg 6.7.0_9 (from a serial console). I can run any tests or versions that might help - just let me know.