[snb efi gmux] imac 12,1 blank screen upon booting
Submitted by William
Assigned to Default DRI bug account
Created attachment 73107
kernel error message
i have been waiting a while for new kernels to come up and see if this problem got fixed, but that has not happened yet.
I'm trying to boot an x86 kernel with a 64 bit efi firmware using grub. This is supported since kernel 3.4 but i cannot start the imac without disabling the i915 driver. I can start the system with i915.disable=1 but without this option it gives me the attached kernel message (picture).
When using the same kernel version but 64 bit, the system boots without problems.
I'm not sure how I should report this bug so if more information is needed, I'm happy to give that.
I have tested this with an ubuntu install using kernel version 3.5.0 till the latest kernel 3.8 rc3.
Attachment 73107, "kernel error message":