Created attachment 130829 [details]
xorg log with segfault

With current agd5f  drm-next-4.12-wip I get a segfault on startx (xserver
1.19.3, git ddx,mesa,llvm. Log attached.

On the previous incarnation of the same kernel I can startx, but there are a
lot of warnings in dmesg every time the screen is turned on - ie. startx or
coming out of dpms. dmesg attached.

Don't know when I'll get time to bisect, so just getting these reported now.