I'd guess it is something to do with this upgrade:
Start-Date: 2015-02-26 03:27:34 Commandline: aptdaemon role='role-commit-packages' sender=':1.156' Upgrade: firefox-locale-en:amd64 (35.0.1+build1-0ubuntu0.14.04.1, 36.0+build2-0ubuntu0.14.04.4), nvidia-settings:amd64 (346.35-0ubuntu1~xedgers14.04.1, 346.47-0ubuntu1~xedgers14.04.1), libdrm-intel1:amd64 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty), libdrm-intel1:i386 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty), firefox:amd64 (35.0.1+build1-0ubuntu0.14.04.1, 36.0+build2-0ubuntu0.14.04.4), libdrm-radeon1:amd64 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty), libdrm-radeon1:i386 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty), libwayland-server0:amd64 (1.4.0-1ubuntu1, 1.7.0-0ubuntu1~trusty1), libwayland-cursor0:amd64 (1.4.0-1ubuntu1, 1.7.0-0ubuntu1~trusty1), xserver-xorg-video-intel:amd64 (2.99.917+git20150212.147e190d-0ubuntu0sarvatt~trusty, 2.99.917+git2015022 5.2b978c71-0ubuntu0sarvatt~trusty), libdrm-nouveau2:amd64 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty), libdrm-nouveau2:i386 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty), libwayland-client0:amd64 (1.4.0-1ubuntu1, 1.7.0-0ubuntu1~trusty1), libdrm2:amd64 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty), libdrm2:i386 (2.4.59+git20150125.0c5aaeef-0ubuntu0ricotz~trusty, 2.4.59+git20150225.1f73578d-0ubuntu0ricotz~trusty) End-Date: 2015-02-26 03:28:09 Almost all of the packages updated come from a PPA, not the official Ubuntu archive, and you should try the official versions of the Ubuntu package to see if it is a bug with package in the Ubuntu archive. If it is not then you should take up this issue with the maintainers of the PPA from which you are installing packages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1426751 Title: Ubuntu-desktop not working when suspend/resume or connecting an external monitor -after upgrade this week (14.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-meta/+bug/1426751/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs