Comment 28 for bug 351756

According to the upstream bug report, this issue is solved by the following kernel patch, which has been tested and validated by Intel:

http://git.kernel.org/?p=linux/kernel/git/anholt/drm-intel.git;a=commit;h=5e4d6fa72619aeea271d2ad704757717b06e291a

Since this is a kernel patch, I'm reassigning to the kernel team for review. This would be a handy patch to get in since being limited to 2048x2048 on 915 and 945 kind of sucks.