From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: Bug#587014: screen brightness can't be modified on Panasonic S9 Date: Thu, 1 Jul 2010 16:16:22 +0100 Message-ID: <20100701151622.GA1693@srcf.ucam.org> References: <20100625011257.GA3993@nashi.ohno.39mm.net> <1277604884.26161.372.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:54281 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752048Ab0GAPQc (ORCPT ); Thu, 1 Jul 2010 11:16:32 -0400 Content-Disposition: inline In-Reply-To: <1277604884.26161.372.camel@localhost> Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: Ben Hutchings Cc: Harald Welte , Nicolas Limare , 587014@bugs.debian.org, platform-driver-x86@vger.kernel.org On Sun, Jun 27, 2010 at 03:14:44AM +0100, Ben Hutchings wrote: > Harald, > > Nicolas Limare reported that the backlight control in panasonic-laptop > is non-functional on the S9; see . > There's a kernel log attached to that bug report, but it doesn't show > very much. Can you suggest how to investigate this? Could be a number of things. The output of acpidump would help. -- Matthew Garrett | mjg59@srcf.ucam.org