Date: Thu, 16 Nov 2000 14:25:56 +0000 From: Nick Barnes <Nick.Barnes@pobox.com> To: K.J.Bosschaart@wtb.tue.nl Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: Utah-GLX on Matrox G400 using DMA ?? Message-ID: <17456.974384756@thrush.ravenbrook.com> In-Reply-To: Message from "Karel J. Bosschaart" <karelj@wop21.wop.wtb.tue.nl> of "Thu, 16 Nov 2000 15:17:00 %2B0100." <20001116151700.A97625@wop21.wop.wtb.tue.nl>
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At 2000-11-16 14:17:00+0000, "Karel J. Bosschaart" writes: > 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. I loaded the agp module with kldload; that didn't help. Nick B > 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. > > -- FreeBSD 4.1-RELEASE: up 7 days, 1:21 last reboot Thu Nov 2 10:55 (new machine) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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