Comment 136 for bug 546393

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Alex Murray (alexmurray) wrote : Re: MacBook Pro 5,1 / 5,2 / 5,3 / 5,5 fails to boot into 12.04 desktop

@Tomodachi - if you note, the bug refers to the nouveau driver, not the binary one - with the nouveau driver it fails to successfully boot UNLESS acceleration is disabled - ie. it only boot successfully if you add:

nouveau.noaccel=1

to the kernel command line

The second issue is then that Xorg may pick to use the wrong card (ie the one which the display is not connected to - but this can be controlled by either disabling say the 9600 card as you do, or by specifying which card to use via its PCI device id in the device section of xorg.conf with something like:

BusID "PCI:3:0:0" # this selects the 9400M