Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757275Ab0BLQoS (ORCPT ); Fri, 12 Feb 2010 11:44:18 -0500 Received: from cavan.codon.org.uk ([93.93.128.6]:41064 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757063Ab0BLQoR (ORCPT ); Fri, 12 Feb 2010 11:44:17 -0500 Date: Fri, 12 Feb 2010 16:44:12 +0000 From: Matthew Garrett To: Soeren Sonnenburg Cc: Julien BLACHE , nicolas@boichat.ch, felipe_alfaro@linuxmail.org, Linux Kernel Subject: Re: Brightness control for MacBook Pro - Nvidia 9400 Message-ID: <20100212164412.GA21279@srcf.ucam.org> References: <1265920725.7103.7.camel@no> <878wayk8hn.fsf@sonic.technologeek.org> <20100212141457.GA18714@srcf.ucam.org> <87zl3eto99.fsf@sonic.technologeek.org> <20100212162810.GA20998@srcf.ucam.org> <1265992937.3485.34.camel@no> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1265992937.3485.34.camel@no> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1003 Lines: 23 On Fri, Feb 12, 2010 at 05:42:17PM +0100, Soeren Sonnenburg wrote: > On Fri, 2010-02-12 at 16:28 +0000, Matthew Garrett wrote: > > On Fri, Feb 12, 2010 at 05:25:22PM +0100, Julien BLACHE wrote: > > > > > Is it exposed to userspace in any way? Or, better yet, could we have an > > > MBP backlight driver which would hide all of this from userspace? > > > > Sure, in nouveau. > > OK, great convinced. Any suggestions on where to add printk's to figure > out the cause of the hang? The only thing I noticed was the fans turning > on so the machine is either stuck in a busy loop or ??? Best bet is probably to file a bug on bugs.freedesktop.org - I'm afraid I'm not too hot on the GPU bringup side of the driver. -- Matthew Garrett | mjg59@srcf.ucam.org -- 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/