i915: wrong framebuffer size in 2.6.36-rc3

[Ivan Bulatovic]

On Mon, 2010-08-30 at 12:57 +0300, Pekka Enberg wrote: 
> On Mon, Aug 30, 2010 at 12:36 PM, Sven Joachim <svenjoac at gmx.de> wrote:
> > On my laptop which has a 1280x800 display, only the upper left 848x480
> > pixels are used on the console in 2.6.36-rc3.  The resolution is
> > correct, but /sys/class/graphics/fb0/modes looks like this:
> >
> > U:848x480p-0
> >
> > This is a regression from 2.6.35.  The graphics card according to lspci:
> >
> > 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
> > 943/940GML Express Integrated Graphics Controller (rev 03)
> 
> Yeah, you're not alone on this:
> 
> http://lkml.org/lkml/2010/8/23/452
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If that's the only problem you have then revert this commit:


commit
9559fcdbff4f93d29af04478bbc48294519424f5


> drm/i915: fix vblank wait test condition
> 
> When converting this to the new wait_for macro I inverted the wait
> condition, which causes all sorts of problems.  So correct it to fix
> several failures caused by the bad wait (flickering, bad output
> detection, tearing, etc.).
> 
> Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
> Tested-by: Sitsofe Wheeler <sitsofe at yahoo.com>
> Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
> Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9559fcdbff4f93d29af04478bbc48294519424f5