From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sven Luther Subject: Bug#347186: linux-image-2.6.14-2-alpha-generic: garbled Matrox framebuffer Date: Wed, 11 Jan 2006 12:48:48 +0100 Message-ID: <20060111114848.GA6453@localhost.localdomain> References: <20060109090849.GB3481@tennyson.dodds.net> <20060109093517.GA23253@localhost.localdomain> <20060109105146.GE3481@tennyson.dodds.net> <20060111102827.GF7691@nancy> <43C4EAD4.2090704@pol.net> Reply-To: Sven Luther , 347186@bugs.debian.org Mime-Version: 1.0 Return-path: Resent-To: debian-bugs-dist@lists.debian.org Resent-Message-ID: Content-Disposition: inline In-Reply-To: <43C4EAD4.2090704@pol.net> List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Antonino A. Daplas" Cc: maximilian attems , Steve Langasek , 347186@bugs.debian.org, Sven Luther , linux-fbdev-devel@lists.sourceforge.net On Wed, Jan 11, 2006 at 07:24:04PM +0800, Antonino A. Daplas wrote: > maximilian attems wrote: > > dear adaplas, > > > > could you please take a look at this matroxfb debian bug report: > > http://bugs.debian.org/347186 > > > > On Mon, 09 Jan 2006, Steve Langasek wrote: > > > > > >>>> Sigh, can't get a break with alpha kernel support around here. After > >>>> upgrading to 2.6.14 (from 2.4.27), the Matrox framebuffer no longer works > >>>> correctly on my alpha with a Matrox Millenium II. The matroxfb_base module > >>>> loads without error, but gives me corrupt video output only. > >>> Try turning off acceleration. > >> Doesn't make a difference. > >> > >> What did make a difference was, after googling, loading fbcon manually > >> before loading matroxfb_base. Given that I'm loading matroxfb_base by hand > >> (/etc/modules), it's not getting loaded via udev or anything like that, it > >> seems to me that it's my responsibility to load fbcon by hand as well, but > >> it's still something of an unexpected change from 2.4. > > You can always compile fbcon statically and the fbdev as modules so you get > the same behavior as 2.4. (The separation of fbdev from fbcon is advantageous > in embedded systems where the console is not needed). > > (There's a new document Documentation/fb/fbcon.txt that explains some of the > changes. It's new in 2.6.15). Also, note : http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=311815 [powerpc] screen garbage when using matroxfb acceleration this is on powerpc64 though, so it may be some 64-bitness issue. Friendly, Sven Luther