Comment 15 for bug 1097178

I got it too, X freezes right after this :

May 1 16:05:56 lisak kernel: [ 1588.032792] nouveau E[Xorg[1323]] failed to idle channel 0xcccc0000 [Xorg[1323]]
May 1 16:05:57 lisak gnome-session[1879]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
May 1 16:05:57 lisak colord: device removed: xrandr-BenQ-BenQ G2411HD-D4910151SL0
May 1 16:05:57 lisak colord: Profile removed: icc-d63583c0a76a513bac920519a90532e8
May 1 16:06:12 lisak kernel: [ 1603.182708] nouveau E[compiz[2063]] failed to idle channel 0xcccc0000 [compiz[2063]]

VGA compatible controller: NVIDIA Corporation C77 [GeForce 8200] (rev a2)

dpkg -l | grep nouveau
ii libdrm-nouveau2:amd64 2.4.52-1 amd64 Userspace interface to nouveau-specific kernel DRM services -- runtime
ii xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 amd64 X.Org X server -- Nouveau display driver

uname -a
Linux lisak 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux