4.11 + Xorg mga/dri problem

[Pete French]

Just giving 4.11 a whirl. Thought I would try and get dri working
with my mga card. It's never worked in the past, so I am not too
worried that it doesnt work now.

But it's getting closer to woorking, so I thought I would ask
to see if anyone had any good ideas. I have agp and mgadrm compiled
into the kernel. dmesg output at boot is:

drm0: <Matrox G400/G450 (AGP)> mem 0xfd000000-0xfd7fffff,0xfdefc000-0xfdefffff,0xf8000000-0xf9ffffff irq 14 at device 0.0 on pci6
info: [drm] AGP at 0xf0000000 32MB
info: [drm] Initialized mga 3.1.0 20021029 on minor 0
drm1: <Matrox G400/G450 (AGP)> mem 0xfc800000-0xfcffffff,0xfdef8000-0xfdefbfff,0xf6000000-0xf7ffffff irq 14 at device 4.0 on pci6
info: [drm] AGP at 0xf0000000 32MB
info: [drm] Initialized mga 3.1.0 20021029 on minor 1
drm2: <Matrox G400/G450 (AGP)> mem 0xfc000000-0xfc7fffff,0xfdef4000-0xfdef7fff,0xf4000000-0xf5ffffff irq 14 at device 8.0 on pci6
info: [drm] AGP at 0xf0000000 32MB
info: [drm] Initialized mga 3.1.0 20021029 on minor 2
drm3: <Matrox G400/G450 (AGP)> mem 0xfb800000-0xfbffffff,0xfdef0000-0xfdef3fff,0xf2000000-0xf3ffffff irq 14 at device 12.0 on pci6
info: [drm] AGP at 0xf0000000 32MB
info: [drm] Initialized mga 3.1.0 20021029 on minor 3

So that looks very good. It was not doing this before, so I thought this might
enable me to get it working with Xorg (6.8.1_2 - cvsup this morning).

But I I include the "dri" options in my xorg.conf file, I get a black
screen which a while 'X' cursor which moves with the mouse, but noithing
else. X cannot be killed either and so I have to resort to rebooting
the machine!

So near and yet so far... any suggestions ?

-pcf.