Could this be caused my installing the nvidia restricted drivers (177) via jockey-kde?
I'm current version of jockey-kde is 0.5~beta1-0ubuntu1. But I'm not sure which particular version of jockey-kde I used for installing nvidia drivers. dpkg -l | grep nvidia: ii nvidia-173-modaliases 173.14.12-1-0ubuntu3 Modaliases for the NVIDIA binary X.Org drive ii nvidia-177-kernel-source 177.76-0ubuntu1 NVIDIA binary kernel module source ii nvidia-177-modaliases 177.76-0ubuntu1 Modaliases for the NVIDIA binary X.Org drive ii nvidia-71-modaliases 71.86.04-0ubuntu10 Modaliases for the NVIDIA binary X.Org drive ii nvidia-96-modaliases 96.43.05-0ubuntu10 Modaliases for the NVIDIA binary X.Org drive ii nvidia-common 0.2.3 Find obsolete NVIDIA drivers rc nvidia-glx-173 173.14.12-1-0ubuntu3 NVIDIA binary Xorg driver ii nvidia-glx-177 177.76-0ubuntu1 NVIDIA binary Xorg driver ii nvidia-settings 173.14.09-1ubuntu3 Tool of configuring the NVIDIA graphics driv -- nvidia-common postinstall script breaks linux-image-2.6.27-4 upgrade https://bugs.launchpad.net/bugs/276946 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs