Comment 65 for bug 747205

Several other testers have found that drm-intel-next-proposed solves it.

There is a similar bug against sandybridge (#761065) which was isolated down to 4 kernel patches recently, provided in this test kernel: http://people.canonical.com/~acelan/bugs/lp753189/. Of those 4 patches, the fix is suspected to be the following kernel patch:

http://<email address hidden>/msg03038.html

Reviewing that patch, it looks to me this should similarly affect other >965 chips. So I have a hunch this may be the patch from drm-intel-next-proposed that we want. However, I'd want to see some additional testing to be certain.

Anyway, at the least I am 99% sure that a lot of these Arrandale/external-screen/blank issues are the same, so am going to dupe them together. 737891 has the best testing feedback so far, and is one of the oldest reported ones so I'll make that the master.