Thread: Failure to boot with multiple graphics cards

hi guys,

i'm having bit of issue booting ubuntu 12.10 multiple graphics cards. 2 card in question amd radeon hd 7950 , amd radeon hd 5850.

had drivers 7950 installed, rebooted, inserted 5850, , when tried log in, compiz crash, , 2 cards become hot.

tried shutting down, removing 5850, rebooting, uninstalling 7950 drivers (booting w/o 5850 worked fine), shutting down, putting in 5850, rebooting. time couldn't logon screen, , wouldn't let me access vterms either (ctrl+alt+f{1..6}), , had power off manually.

reasoning behind want use 5850 in linux, , using kvm pass 7950 windows vm.

thoughts or solutions appreciated. can logs in bit, pressed time earlier, , i'm not @ computer now. looked @ system logs , showed compiz dying , restarting (before uninstalling 7950 drivers)

i'd prefer not boot both cards in until can figure out why they're heating :/

i have not used kvm, might incorrect or irrelevant: vms include virtual video adapter, not related actual hardware in computer.

both cards can consume lot of energy, 151 , 200 watts respectively. if computer case doesn't have excellent airflow, means quite hot. use conky see actual temperature of graphics card, it's nvidia, don't know how use amd cards.

in short, don't think 2 graphics cards useful want do.

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [all variants] Failure to boot with multiple graphics cards

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