[Bug 61152] Ubuntu12.04.2 LinearFramebuffer under extended mode broken by intel_gen4_compute_offset_xtiled()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61152

--- Comment #21 from James M. Leddy <james.leddy at ubuntu.com> ---
I should add that I did this test on a haswell only machine. You can try the
kernel for yourself here:

http://people.canonical.com/~jmleddy/.private/linearfb/

which I built by taking the latest quantal kernel from here:

git://kernel.ubuntu.com/ubuntu/ubuntu-quantal.git

with the addition of these patches:

b6f4aeac298cb891805591ada44757451d0c14f5 drm/i915: Handle untiled planes when
computing their offsets
e3f9b83dbe0947a29dbaee5b6a43f0330cb94991 drm/i915: Use pixel size for computing
linear offsets into a sprite

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