Date: Thu, 16 Nov 2000 15:17:00 +0100 From: "Karel J. Bosschaart" <karelj@wop21.wop.wtb.tue.nl> To: Nick Barnes <Nick.Barnes@pobox.com> Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: Utah-GLX on Matrox G400 using DMA ?? Message-ID: <20001116151700.A97625@wop21.wop.wtb.tue.nl> In-Reply-To: <17307.974383470@thrush.ravenbrook.com>; from Nick.Barnes@pobox.com on Thu, Nov 16, 2000 at 02:04:30PM %2B0000 References: <17307.974383470@thrush.ravenbrook.com>
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On Thu, Nov 16, 2000 at 02:04:30PM +0000, Nick Barnes wrote: > I have a new machine running 4.1-RELEASE and Utah-GLX. > > When I start X, bI get this glx.log. Note the "Device not configured" > message. It's the same when I try to open /dev/agpgart manually > (e.g. cat /dev/agpgart > /dev/null gives "Device not configured"). > > The Mesa demos run OK; much faster than without Utah-GLX. But as I > understand it, this agpgart failure means I am using PseudoDMA only, > which slows down the card and prevents direct rendering. > > Any ideas? I've studied the LINT configuration file and sys/pci/agp.c > but without success. > Do you have the agp module loaded? I load it at startup with agp_load="YES" in /boot/loader.conf. Then I did 'sh MAKEDEV agpgart' in /dev. However, when I start X I'm getting a DMA timeout, and a black screen. I need to reset via a remote login (actually a reboot to get the G400 back in order). I mailed to this list couple of days ago with a more extensive description. Alexander N. Kabaev <ak03@gte.com> reported that he has the same DMA timeout on another AGP chipset than what I have. I don't have a solution (yet?) :-(. Karel. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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