I've installed 12.10 on a MacBook Pro 8,2 using the Mac install image. The install was successful, but I don't see the /boot/efi partition I expected to see. Therefore, I assume it was not an EFI install. There is a boot_grub partition, instead.
More to the point of this question, lspci sees only the AMD card, not that and the integrated Intel GPU. Being able to use vgaswitcheroo to enable the Intel card was the primary motivation for installing 12.10. Vgaswitcheroo isn't in /sys/kernel/debug, though.
The fglrx drivers from Additional Drivers result in a broken display: No Dash and no panel. I've no option but to use the default open source Radeon driver and that seems to trigger the fans quite often.
So, I'd like to use the Intel card in the hope it won't push the fans as much.
How can I get from here to there?