From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: Bug#587014: screen brightness can't be modified on some Panasonic laptops Date: Mon, 3 Jan 2011 22:32:40 +0000 Message-ID: <20110103223240.GA6181@srcf.ucam.org> References: <20101229152428.GB4116@nashi.hw.39mm.net> <201101031040.03797.trenn@suse.de> <20110103104457.GA20726@nashi.hw.39mm.net> <20110103213339.GA5174@srcf.ucam.org> <20110103221821.GA5998@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:51594 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750980Ab1ACWcw (ORCPT ); Mon, 3 Jan 2011 17:32:52 -0500 Content-Disposition: inline In-Reply-To: Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: Cristopher Camacho Cc: Nicolas Limare , Thomas Renninger , Nicolas Limare , 587014@bugs.debian.org, ben@decadent.org.uk, laforge@gnumonks.org, platform-driver-x86@vger.kernel.org Well, that's odd. There's certainly support for ACPI backlight control in your firmware, and it goes via opregion so it should work correctly. I think the thing to do here is to have the panasonic driver bail if there's ACPI backlight support, and then figure out why the ACPI video driver isn't working for you. -- Matthew Garrett | mjg59@srcf.ucam.org