[Bug 58151] kernel 3.2.45 regression in i915 driver for 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=58151





--- Comment #3 from Jani Nikula <jani.nikula at intel.com>  2013-05-15 09:55:00 ---
(In reply to comment #0)
> Using the same .config file on the same machine (Lenovo Thinkpad t400),
> compiling 3.2.44 kernel no problem, compiling 3.2.45 no backlight and no video.
> Disabling the modeseting by default on the .config and setting i915.modeset=0
> the backlight works, but, no framebuffer, and no control of backlight using Fn
> + Bright up/down.

This should be easy to bisect. See [1] for instructions. Just use the stable
tree [2] if you aren't already using that.

[1]
http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-find-buggy-kernel-patches/
[2] git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git

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