From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262092AbTJaWzV (ORCPT ); Fri, 31 Oct 2003 17:55:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263669AbTJaWzV (ORCPT ); Fri, 31 Oct 2003 17:55:21 -0500 Received: from griffin-can-au.getin2net.com ([203.43.225.34]:27144 "EHLO griffin-can-au.getin2net.com") by vger.kernel.org with ESMTP id S262092AbTJaWzQ (ORCPT ); Fri, 31 Oct 2003 17:55:16 -0500 Subject: Re: RadeonFB [Re: 2.4.23pre8 - ACPI Kernel Panic on boot] From: Benjamin Herrenschmidt Reply-To: benh@kernel.crashing.org To: "Kristofer T. Karas" Cc: Kronos , Linux Kernel Mailing List , Javier Villavicencio In-Reply-To: <3FA2B4F4.8040404@enterprise.bidmc.harvard.edu> References: <20031029210321.GA11437@dreamland.darkstar.lan> <1067491238.1735.4.camel@ktkhome> <1067587196.715.1.camel@gaston> <3FA2B4F4.8040404@enterprise.bidmc.harvard.edu> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1067640904.1700.14.camel@gaston> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Sat, 01 Nov 2003 09:55:05 +1100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2003-11-01 at 06:16, Kristofer T. Karas wrote: > Benjamin Herrenschmidt wrote: > > >Ok, first thing: XFree "radeon" _is_ accelerated, though it doesn't > >do 3D on recent cards > > > Hi Ben - Right, sorry, I mean to apply "accelerated" to the 3D effects; > the private ATI driver is much faster on glxgears than the version that > bundles with XFree. > > >Then, the problem you are having is well known > > > I'm having two, actually. The first is that YPAN is getting quite > confused. If I switch VCs, then switch back, the text has been > re-arranged, the cursor is often invisible, and sometimes a page or two > of new text must be written before anything starts to show up on the > screen again. Experimenting shows that setting VYRES = YRES works > around this problem. I'll have to look at this in more details. I don't see why ypan would cause such screen re-arrangement though... > The second problem is of course the register contents issue when > returning from certain graphics programs (e.g. X+fglr) to text mode.. I > rather like your idea of doing a re-init when switching from KD_GRAPHICS > to KD_TEXT, as the monitor blank during resolution switch will likely > overshadow the re-init process. > > >Can you verify that running fbset -accel 0 then back 1 cures the > >problem for you ? > > > > > > At work now, will try when I return home later... > > Kris