[arch-general] MBP 8, 2: Screen(s) found, but none have a usable configuration

[bjschuma at gmail.com]

Hi everybody!

I just installed Arch on a MacbookPro 8,2 in EFI mode (booting directly
from Grub 2).  My system boots, but when I try to start X I get "(EE)
Screen(s) found, but none have a usable configuration".

I've tried changing the modeset values for i915 and radeon (mentioned on
this wiki page:
https://wiki.archlinux.org/index.php/MacBook_Pro_8,1_/_8,2_/_8,3_(2011_Macbook_Pro)#EFI_Boot)
but nothing seems to work.

My modules line in /etc/mkinitcpio.conf is: MODULES="ahci libahci
crc32c-intel intel_agp i915"

Does anybody know what I'm missing?

Thanks!

- Bryan