re: patch for netbsd-5 and drm

[matthew green <mrg%eterna.com.au@localhost>]

   The Xorg server (pkgsrc modular Xorg 1.6.901), however, dies trying
   to load the R6xx DRI driver and never recovers.  Haven't dug further
   yet.
   
   The last I see in the logs is:
   
       (II) AIGLX: Screen 0 is not DRI2 capable
       drmOpenDevice: node name is /dev/dri/card0
       drmOpenDevice: open result is 8, (OK)
       drmOpenByBusid: Searching for BusID pci:0000:04:00.0
       drmOpenDevice: node name is /dev/dri/card0
       drmOpenDevice: open result is 8, (OK)
       drmOpenByBusid: drmOpenMinor returns 8
       drmOpenByBusid: drmGetBusid reports pci:0000:04:00.0
       (EE) AIGLX error: dlopen of /usr/pkg/lib/dri/r600_dri.so failed (Cannot 
open "/usr/pkg/lib/dri/r600_dri.so")
   
   After that the X server can't even VT switch back to the console, but I was
   able to SSH in and a disabling DRI in Xorg.conf and restarting gdm gave me
   a happy secondary server (:1), which has no trouble interacting with the
   screen on keyboard... 


this is the same as i see.  the latest Mesa does not have a driver
for r600 but the kernel parts work fine for eg, Xvideo.

i have seen some VT switching issues but only on the radeon 9000-M.

i have had one very strange crash (stack trashed or something, it
had no meaningful errors or PC or stack values) when atempting to
restart Xorg without DRI after it had already run once with DRI.


.mrg.