What do I use for DRI / DRM in X?

[Nikolas Britton]

I'm a bit confused as to what's needed to get DRI / DRM working in
Xorg. AFAIK we have 3 ways to do it; We have the DRM device in the
kernel, dri-6.2.1,2 (For XFree86?) in the ports system, and Xorg seems
to have it's own version too.

What do I need and what don't I need for DRI / DRM in Xorg?

The reason I ask is because I'm having problems getting DRI working on
a triple-head system with 3 Radeon cards:

drm0: <ATI Radeon QL R200 8500 LE> port 0xb000-0xb0ff mem
0xc8000000-0xcfffffff,0xfe8f0000-0xfe8fffff irq 16 at device 0.0 on
pci1
info: [drm] AGP at 0xf8000000 64MB
info: [drm] Initialized radeon 1.16.0 20050311 on minor 0
drm1: <ATI Radeon QY RV100 7000/VE> port 0xd000-0xd0ff mem
0xe8000000-0xefffffff,0xfeaf0000-0xfeafffff irq 21 at device 9.0 on
pci2
info: [drm] Initialized radeon 1.16.0 20050311 on minor 1
drm2: <ATI Radeon QY RV100 7000/VE> port 0xc000-0xc0ff mem
0xe0000000-0xe7ffffff,0xfea90000-0xfea9ffff irq 23 at device 11.0 on
pci2
info: [drm] Initialized radeon 1.16.0 20050311 on minor 2

When the dri module in xorg.conf is enable the system locks-up and I
have to do a hard reboot. When it's disable everything works fine, but
it's slow.


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