Comment 14 for bug 876762

http://cgit.freedesktop.org/~ickle/xserver/commit/?id=65a272e7ae9392a5716a620d669ef5261241bc4b

dri2: Register the DRI2DrawableType after server regeneration
The Resource database is reset upon regeneration and so the dri2 module
needs to re-register its RESTYPE for the drawable or else it will
clobber the next unsuspecting user of the database. Fortunately, DRI2 is
loaded late in the initialisation sequence and was last up until
xf86-video-intel started using the Resource database to track
outstanding swaps...

Signed-off-by: Chris Wilson <email address hidden>