Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756381Ab0KLKKQ (ORCPT ); Fri, 12 Nov 2010 05:10:16 -0500 Received: from mx.logic.tuwien.ac.at ([128.130.175.19]:35581 "EHLO mx.logic.tuwien.ac.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752465Ab0KLKKM (ORCPT ); Fri, 12 Nov 2010 05:10:12 -0500 Date: Fri, 12 Nov 2010 19:10:08 +0900 From: Norbert Preining To: Zhang Rui Cc: Matthew Garrett , Mattia Dongili , "linux-kernel@vger.kernel.org" , ACPI Devel Mailing List Subject: Re: regression since 2.6.36: backlight in sony-laptop not working Message-ID: <20101112101008.GC6726@gamma.logic.tuwien.ac.at> References: <20101104142915.GC7650@gamma.logic.tuwien.ac.at> <20101110035833.GB3029@kamineko.org> <20101111235000.GA6651@gamma.logic.tuwien.ac.at> <20101112034423.GA7407@srcf.ucam.org> <20101112035027.GD26742@gamma.logic.tuwien.ac.at> <1289547519.8148.1795.camel@rui> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1289547519.8148.1795.camel@rui> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1271 Lines: 32 Hi Zhang, On Fr, 12 Nov 2010, Zhang Rui wrote: > I think the /sys/class/thermal/ and /sys/class/backlight/acpi_video0 > still exists, right? Yes, right. > we make ACPI video procfs I/F depend on CONFIG_ACPI_PROCFS, which is > cleared by default, in 2.6.36, and removed this I/F in 2.6.37-rc1. > perhaps the backlight control depends on the procfs I/F? Hmm, I would have expected that the backlight adjustment reacts to the key sent, as I can use xbacklight by hand, and that is old. Best wishes Norbert ------------------------------------------------------------------------ Norbert Preining preining@{jaist.ac.jp, logic.at, debian.org} JAIST, Japan TeX Live & Debian Developer DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094 ------------------------------------------------------------------------ ADRIGOLE (n.) The centrepiece of a merry-go-round on which the man with the tickets stands unnervingly still. --- Douglas Adams, The Meaning of Liff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/