From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michel =?ISO-8859-1?Q?D=E4nzer?= Subject: Re: fglrx + radeonfb leads to crashes? Date: Thu, 18 Mar 2004 02:23:17 +0100 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Message-ID: <1079572996.13243.10.camel@thor.asgaard.local> References: <200403172018.i2HKI5E0002012@napali.hpl.hp.com> <1079569590.909.12.camel@gaston> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1B3mFk-0004vK-88 for linux-fbdev-devel@lists.sourceforge.net; Wed, 17 Mar 2004 17:23:20 -0800 Received: from netline-mail1.netline.ch ([195.141.226.27]) by sc8-sf-mx1.sourceforge.net with esmtp (Exim 4.30) id 1B3mFj-00052u-30 for linux-fbdev-devel@lists.sourceforge.net; Wed, 17 Mar 2004 17:23:19 -0800 In-Reply-To: <1079569590.909.12.camel@gaston> Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="iso-8859-1" To: Benjamin Herrenschmidt Cc: davidm@hpl.hp.com, ajoshi@shell.unixbox.com, Linux Fbdev development list On Thu, 2004-03-18 at 01:26, Benjamin Herrenschmidt wrote:=20 > On Thu, 2004-03-18 at 07:18, David Mosberger wrote: > >=20 > > I have a machine here with an ATI FireGL Z1 card. It works fine with > > the ATI fglrx binary-only driver on 2.6.5-rc1. However, if radeonfb > > is enabled and I try to stop the X server or switch away from it to > > another virtual console, then the screen display gets all messed up > > and the machine gets stuck. When this hapens, I periodically see this > > kind of message: > >=20 > > radeonfb: FIFO Timeout ! > >=20 > > Now, this is on ia64 machine so at this point I'm just wondering > > whether this problem also shows up on other machines. If it's an > > ia64-specific problem, I can look into it. Otherwise, I guess I'll > > just disable radeonfp for now. >=20 > This is a known problem. I'm not sure at this point what ATI binary > driver is doing, I think it messes up the card internal memory map, > among others, and it definitely doesn't restore things properly when > beeing switched out. >=20 > I only have PPC machines so I can't experiment with it myself though. > The "fix" might be as simple as restoring MC_FB_LOCATION, > MC_AGP_LOCATION and the various offset when re-initing the mode (the > latest fbdev will trigger a mode restore & engine reset when switching > out from a KD_GRAPHICS console). Note that I don't have problems switching between radeonfb and an X server from DRI CVS which sets up the card memory layout in the recommended way and never restores it. Am I missing something? --=20 Earthling Michel D=C3=A4nzer | Debian (powerpc), X and DRI develop= er Libre software enthusiast | http://svcs.affero.net/rm.php?r=3Ddaenzer ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=3D1470&alloc_id=3D3638&op=3Dclick