[Bug 59572] [845G regression] on Linux 3.7/3.8: LED monitor "Auto Adjust in Progress" 6-10 seconds at boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59572

--- Comment #11 from mlsemon35 at gmail.com ---
(In reply to comment #10)
> (In reply to comment #9)
> > I read about git bisects only yesterday and don't know how to do it yet.
> 
> This should get you started:
> http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-find-
> buggy-kernel-patches/

Thanks, that was quite helpful.

I haven't tested the monitor stuff yet, but this is the bisect for the 8bpp
part.  I tested it first because the test was easy:  If I booted to a blank
screen, the bisect should be marked bad; else, it should be marked good.

bash-4.2# git bisect bad
57779d06367a915ee03e6cb918d7575f0a46e419 is the first bad commit
commit 57779d06367a915ee03e6cb918d7575f0a46e419
Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
Date:   Wed Oct 31 17:50:14 2012 +0200

    drm/i915: Fix display pixel format handling

    Fix support for all RGB/BGR pixel formats (except the 16:16:16:16 float
    format).

    Fix intel_init_framebuffer() to match hardware and driver limitations:
    * RGB332 is not supported at all
    * CI8 is supported
    * XRGB1555 & co. are supported on Gen3 and earlier
    * XRGB210101010 & co. are supported from Gen4 onwards
    * BGR formats are supported from Gen4 onwards
    * YUV formats are supported from Gen5 onwards (driver limitation)

    Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
    Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

:040000 040000 334e1536b3513d0c329a8bb6360593d12065b71d
bf0996ec13cbee07156c5e9f98dcdee30200e658 M      drivers

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