https://bugzilla.kernel.org/show_bug.cgi?id=44851
--- Comment #5 from Peter energonic@gmail.com 2013-05-13 08:27:10 --- Just upgraded my arch installation on iMac from kernel 3.8.13 to 3.9.2. Was working, still with the fbdev driver, but now cannot boot properly, either by grub efi or by pure efi (image selected by rEFInd). Behaves as if the 'nomodeset' parameter is ignored; results in all terminal screens black (but sounds as if it has booted). An arch image running in virtualbox (on mac) has upgraded to 3.9.2 without problem, but that does not need 'nomodeset'.