Re: X 4.0.3 and agpgart
I'm running Matrox G400 on an Intel BX440 motherboard. This is what I
have enabled in the kernel (2.4.6) to get through the part Jim is
talking about:
CONFIG_AGP=y
CONFIG_AGP_INTEL=y
As Sean noted depending on the chipset Jim may have to enable one of
the following:
# CONFIG_AGP_I810 is not set
# CONFIG_AGP_VIA is not set
# CONFIG_AGP_AMD is not set
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_ALI is not set
# CONFIG_AGP_SWORKS is not set
CONFIG_DRM=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_GAMMA is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_I810 is not set
CONFIG_DRM_MGA=m
This is a snippet from my .config that also enables DRM and MGA driver
for Matrox. Also it seems to be a good idea to enable AGP 2 in the XFree
4.0.3. It sped up the loading time of Gnome considerably subjective to
my perception.
It is strange, but acceleration works really inconsistently in my case.
Mesa3D screensavers run beautifully, but I could not get Quake III to
run at all, it would segfault the XFree86.
Alex.
* Sean Quinlan (smq@gmx.co.uk) wrote:
> * Jim McCloskey <mcclosk@ling.ucsc.edu> (2001-07-18 22:00):
> > I recently up-graded to X 4.0.3 as part of the upgade to debian
> > testing. Also kernel version 2.4.5. There were some things to sort
> > out, but all seems basically well at this point.
> >
> > There's one glitch, though, that I'm still trying to resolve. I have a
> > Matrox G400 card and I'm using the mga driver.
> >
> > In the XFree86 log, I get this:
> >
> > (II) MGA(0): [drm] bpp: 16 depth: 16
> > (II) MGA(0): [drm] Sarea 2196+632: 2828
> > [drm] failed to load kernel module "mga"
> > (0): [drm] drmOpen failed
> > (EE) MGA(0): [drm] DRIScreenInit Failed
> >
> > and in syslog:
> >
> > Jul 18 12:19:17 toraigh kernel: [drm] The mga drm module requires the
> > agpgart module to function correctly
> > Jul 18 12:19:17 toraigh kernel: Please load the agpgart module before
> > you load the mga module
> >
> > So mga_drm requires the agpgart kernel module. I have this module in:
> > /lib/modules/2.4.5/kernel/drivers/char/agp/
> >
> > The device file exists:
> >
> > crw-rw---- 1 root video 10, 175 Jul 18 12:22 agpgart
> >
> > But all attempts to load the module fail, with this on the
> > command-line:
> >
> > init_module: No such device
> >
> > and this in sys.log:
> >
> > kernel: Linux agpgart interface v0.99 (c) Jeff Hartmann
> > kernel: agpgart: Maximum main memory to use for agp memory: 94M
> > kernel: agpgart: unsupported bridge
> > kernel: agpgart: no supported devices found.
> >
> > lspci shows:
> >
> > 00:00.0 Host bridge: VIA Technologies, Inc.: Unknown device 0391 (rev 02)
> > 00:01.0 PCI bridge: VIA Technologies, Inc.: Unknown device 8391
> > 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super] (rev 22)
> >
> > So I tried:
> >
> > modprobe agpgart agp_try_unsupported=1
> >
> > but got the same error messages. Anyone know of a way forward? Thanks,
>
> Sounds like you have the agpgart module, but no support for your
> controller. When you enabled agpgart, you would have needed to
> specify the type of agp controller you have (probably VIA in your
> case).
>
> Then again, you may have an unsupported chipset, what motherboard do
> you have?
>
> Cheers,
> Sean
>
> --
> Sean Quinlan (smq@gmx.co.uk)
>
>
> --
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#######################
Oleksandr Moskalenko
Department of Agronomy
Purdue University
malex@purdue.edu
#######################
"Imagination is more important
than knowledge." -- Albert Einstein
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