Xorg hangs with drmwtq in 7.2-RELEASE

[David Johnson]

I don't know if this helps pinpointing my problem, but when I unload
the drm module, I get the following message:

May 15 19:57:52 radagast kernel: vgapci0: child drm0 requested pci_disable_busmaster
May 15 19:57:52 radagast kernel: drm0: detached
May 15 19:57:52 radagast kernel: Warning: memory type drm_bufs leaked memory on destroy (4 allocations, 128 bytes leaked).

After this I can load the radeon and drm modules, but X will not start,
complaining about no screen found.

-- 
David Johnson