Great, yes there have been a number of fixes to sandybridge in the drm-
intel-fixes kernel. This targets the 3.3 kernel and so since Ubuntu
precise targets 3.2, the fixes may not get into Precise automatically.
Possibly Eugeni upstream will backport the fixes to 3.2, or else the
Ubuntu kernel team may cherrypick some/all of the sandybridge fixes.
Moving to the kernel since last comment indicates a fix is available in
the drm-intel-fixes kernel branch. They can follow up if they need to
have you do git bisection to identify the patches, or if they just want
to bulk import all the sandybridge fixes (which would probably make more
sense).
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Incomplete => Triaged
** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu)
** Tags added: kernel-handoff-graphics
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https://bugs.launchpad.net/bugs/924851
Title:
[snb-m-gt2] Primary display is blank if external display is connected
at boot-up
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