linux-kernel - Re: Linux 3.11-rc2 (acpi backlight)

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Date:	Wed, 24 Jul 2013 14:06:01 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Igor Gnatenko <i.gnatenko.brain@...il.com>
Cc:	James Hogan <james@...anarts.com>,
	Kamal Mostafa <kamal@...onical.com>,
	Steven Newbury <steve@...wbury.org.uk>,
	Martin Steigerwald <Martin@...htvoll.de>,
	Jörg Otte <jrg.otte@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Matthew Garrett <matthew.garrett@...ula.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Aaron Lu <aaron.lwe@...il.com>
Subject: Re: Linux 3.11-rc2 (acpi backlight)

On Wednesday, July 24, 2013 11:19:10 AM Igor Gnatenko wrote:
> On Wed, 2013-07-24 at 07:49 +0100, James Hogan wrote:
> > On 24 July 2013 01:05, Rafael J. Wysocki <rjw@...k.pl> wrote:
> > > I'd like to collect some information on the systems having problems with those
> > > two commits (to see if they are similar somehow).
> > >
> > > It seems that one common symptom is that brightness cannot be controlled
> > > through function keys.  Is that correct for all of you?  If so, did you try
> > > any other way to control brightness, like a GUI-based?
> > 
> > For me both the Fn keys and the gui slider (kde) now control
> > /sys/class/backlight/intel_backlight/brightness (which has no effect).
> > Previously they both controlled the acpi one (that on -rc2 doesn't
> > exist).
> I think this problem in i915 drivers.
> Rafael, Mathew, Aaron, fix me please

Yes, it is my impression too.

Thanks,
Rafael


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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