mga dri "Failed to map DMA buffers list"

[chrisle]

Hi!

Dri does not wotk with my matrox g400 agp card on dapper.
xserver-xorg-driver-mga version is 1:1.2.1.2-0ubuntu1
See the Xorg log for errors in loading glcore and mga drm section.

bye chris.

[chrisle (chrisle)]

Created an attachment (id=5419)
The xorg log

[chrisle (chrisle)]

Created an attachment (id=5420)
the xorg.conf

[S2 (simon-santoro-gmail)]

I can confirm this. I have exactly the same errors with my i810 card.

[S2 (simon-santoro-gmail)]

Installing libgl1-mesa-dri solved the problem.

[Bas Leerintveld (bas-leerintveld-demon)]

Same problem here.

I too, have a G400 and on my machine, reinstalling libgl1-mesa-dri (it was
installed already) does *not* solve this problem.

[Ulrik Mikaelsson (rawler)]

Same here. Still have the problem.

However, reordering xorg.conf to load glx before glcore solved the problem.
This, however is not the order set up by dexconf, and perhaps should be reviewed.

[Stefan Glasenhardt (glasen)]

Just found a working fix for this problem :

Add the following line to your device section in xorg.conf :

Option "OldDmaInit" "true"

Found this fix under the following link :

http://lists.freedesktop.org/archives/xorg/2005-December/011544.html

[Fabio Massimo Di Nitto (fabbione)]

Unfortunatly we cannot update DRM as suggested, so for the time being dexconf will write the "OldDmaInit" option in xorg.conf.

Fabio

[enyc (enyc)]

Erm...

Is this a problem related to mga_hal driver ?
I have a system here with dual-display where using
'matrox_driver-x86-4.3.0.tar.gz' non-free driver module is
necessary in order to access the second-head on the card.

I notice the matrox driver does not have support in its
install.sh for versions after xorg 6.8.2 ;-(.

I wonder if the mga_drv.o / mga_hal_drv.o work in xorg
7.0.0 all the same?? -- or can have the interface whatnot
recompiled r.e. the 'source' package
ftp://ftp.matrox.com/pub/mga/archive/linux/2005/mgadriver-x86-4.3.0-src.tar.gz

apologies if im writing in the wrong bug or whatever...
Im a little confused!
Comments appreciated ;-)

--enyc