Slow X on x86_64

Hugh Caley Hugh_Caley at affymetrix.com
Thu Dec 9 21:11:04 UTC 2004


Relevant log entries below.

I note that I have no /dev/dri directory.  Created one, but it's gone on
reboot.  My 32-bit machine has these entries in dmesg, but the 64-bit
machine does not:

agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode



Hugh

x86_64

dmesg:

agpgart: Detected AMD 8151 AGP Bridge rev B3
agpgart: Maximum main memory to use for agp memory: 7956M
agpgart: AGP aperture is 128M @ 0xf0000000
PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture

Linux agpgart interface v0.100 (c) Dave Jones

vesafb: probe of vesafb0 failed with error -6



Xorg.0.log:

(II) Loading sub module "drm"
(II) LoadModule: "drm"
(II) Loading /usr/X11R6/lib64/modules/linux/libdrm.a
(II) Module drm: vendor="X.Org Foundation"
(II) MGA(0): [drm] bpp: 32 depth: 24
(II) MGA(0): [drm] Sarea 2200+664: 2864
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: Open failed
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: Open failed
[drm] failed to load kernel module "mga"
(II) MGA(0): [drm] drmOpen failed
(EE) MGA(0): [drm] DRIScreenInit failed.  Disabling DRI.



> Re: Slow X on x86_64
> 
> ______________________________________________________________________
>       * From: Alan Cox <alan redhat com>
>       * To: Development discussions related to Fedora Core <fedora-
>         devel-list redhat com>
>       * Subject: Re: Slow X on x86_64
>       * Date: Wed, 8 Dec 2004 18:21:54 -0500
> 
> ______________________________________________________________________
> On Wed, Dec 08, 2004 at 02:45:54PM -0800, Hugh Caley wrote:
> > I'm having a problem with an install of FC3 on an Opteron machine.  The
> > X performance is deadly slow; glxgears gives me less than 53 FPS.  On a
> > similarly x86 32-bit machine I'm getting well over 500 FPS.  It's the
> > same with both a Matrox G550 and an ATI Radeon 9200 card.
> 
> Maxtrox at least was 32bit only for DRI until very recently. Radeon should
> be working. Mine does anyway 8)
> 
> > Anyone else seeing this?
> 
> Logs ?
> 




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