Hi there, i installed ubuntu 12.04 on my imac 11,3 and it works just fine BUT i needed to install fglrx drivers and this gives me a strange bug.

I only have a working monitor after i first boot into the recovery kernel drop in to the root console and type "reboot" then when the machine is rebooted i choose my normal generic kernel and it boots fine and everything is working. If i dont do this the monitor turns off after grub. I dont have this problem with the radeon driver but it won't suffice for my purpose.

Here is my hardware profile: http://pastebin.com/GMvuv80W If there is more info needed plz let me know.