From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mattia Dongili Subject: Re: regression since 2.6.36: backlight in sony-laptop not working Date: Wed, 10 Nov 2010 12:58:33 +0900 Message-ID: <20101110035833.GB3029@kamineko.org> References: <20101104142915.GC7650@gamma.logic.tuwien.ac.at> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20101104142915.GC7650@gamma.logic.tuwien.ac.at> Sender: linux-kernel-owner@vger.kernel.org To: Norbert Preining Cc: linux-kernel@vger.kernel.org, ACPI Devel Mailing List List-Id: linux-acpi@vger.kernel.org On Thu, Nov 04, 2010 at 11:29:15PM +0900, Norbert Preining wrote: > Hi Mattia, hi all, > > (please keep me in Cc) > > when switching from 2.6.36 to 2.6.37-rc1(+git) I realize that I cannot > adjust the backlight anymore. Before this was possible with the > Fn-F5 and Fn-F6 keys, but now nothing happens. It's ages sony_laptop doesn't change, it may be some other change in the acpi layer that causes this. > acpi_listen does not issue anything when these keys are pressed. How about the input layer? /proc/acpi/event is deprecated and you should not rely on that. But anyway, it's a Fn key issue, not backlight control itself, right? Can you change brightness echoing to the sysfs files directly? > Is there any obvious oversight from my side? don't know, can you bisect it? > config is attached. can you attach dmesg output after loading sony_laptop with debug=1 and pressing the brightness keys? -- mattia :wq!