Re: Brightness control fails between 3.6.8 and 3.7.0-rc7 (Intel915/Dell Vostro 3560)

From: Daniel Vetter
Date: Sun Dec 02 2012 - 06:43:21 EST


On Sun, Dec 2, 2012 at 12:32 PM, Tom St Denis <tstdenis@xxxxxxxxxxxxxxxx> wrote:
> I've narrowed it down to sometime between v3.6.8 and v3.7-rc1. So none of the v3.7 series will work with this GPU/panel.

Hm, that's still a few hundred relevant commits intermingled with a
few thousand that likely don't matter ;-) Can you please attempt a
kernel bisect with git? For a nice howto check out
http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-find-buggy-kernel-patches/

Also, can you please check which of the different backlight controls
in /sys/class/backlight work on 3.6 (and whether any of them still
work on 3.7)?

Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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