linux-kernel - Re: 3.13 i915 brightness settings broken when going from docked -> undocked

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Message-ID: <878usz8vmi.fsf@intel.com>
Date:	Tue, 25 Feb 2014 10:05:57 +0200
From:	Jani Nikula <jani.nikula@...ux.intel.com>
To:	Paul Bolle <pebolle@...cali.nl>,
	Josh Boyer <jwboyer@...oraproject.org>
Cc:	Daniel Vetter <daniel.vetter@...ll.ch>,
	intel-gfx@...ts.freedesktop.org,
	"Linux-Kernel\@Vger. Kernel. Org" <linux-kernel@...r.kernel.org>,
	DRI mailing list <dri-devel@...ts.freedesktop.org>
Subject: Re: 3.13 i915 brightness settings broken when going from docked -> undocked

On Thu, 20 Feb 2014, Paul Bolle <pebolle@...cali.nl> wrote:
> On an (rather old) ThinkPad X41, which also uses i915, brightness
> adjustments stopped working altogether in v3.14-rc1 (I haven't used its
> docking station in the v3.14 release cycle). In v3.13.y things behave as
> expected. So perhaps there's actually a more general problem here.

I presume different problems. Does the ThinkPad X41 have gen3 graphics?
(See e.g. /sys/kernel/debug/dri/0/i915_capabilities) If yes, it might be
https://bugs.freedesktop.org/show_bug.cgi?id=75001

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Technology Center
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