From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [Bug #12401] 2.6.28 regression: xbacklight broken on ThinkPad X61s Date: Mon, 16 Feb 2009 01:16:00 +0000 Message-ID: <20090216011600.GA28929@srcf.ucam.org> References: <20090215134409.GC21670@srcf.ucam.org> <200902151538.29766.rjw@sisk.pl> <20090215221647.GA15392@dose.home.local> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <20090215221647.GA15392-z7fNteJZwjmqk56C3691EA@public.gmane.org> Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List , Andi Kleen , Le On Sun, Feb 15, 2009 at 11:16:47PM +0100, Tino Keitel wrote: > I think if it works without DRI in 2.6.27 and doesn't work in 2.6.28, > it isn't a configuration error, but a real regression. It only worked by accident without DRM support, since you were using the ATI codepath in the firmware rather than the Intel one. That bug's been fixed, so now you're following the Intel codepath - unfortunately there's no way to do that without kernel-level graphics support, which means DRM. -- Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org