Same problem with Kubuntu 14.04, on a HP 8530w, NVIDIA Quadro FX 770M, xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2.
Same problem with Kubuntu 14.04, on a HP 8530w, NVIDIA Quadro FX 770M, xserver- xorg-video- nouveau 1:1.0.10-1ubuntu2.