I've tried the patch on git://people.freedesktop.org/~agd5f/linux drm-nex-3.7
branch and it doesn't work. The gdm sets the blue background image and freezes,
no top bar or login dialog. I ssh from another computer and dmesg is clean at
this point. I try to stop gdm and it displays some garbage, mostly black screen
with some vertical purple bars about 4 cm thick and about 2 cm from the top of
the screen, then it displays the gpu crash messages on log and then the console
comes back.