I am experiencing this issue since I upgraded to 13.10 from 13.04. No nVidia card but Intel: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
The system does not hang. From my experience it just get stuck trying to open a new VT. It fails to switch to the Greeter and a black screen is shown, but you can go back to your previous VT (CTRL-ALT-F7) or to a new one (e.g. tty1). Versions: lightdm 1.8.4-0ubuntu1 amd64 kernel 3.11.0-14-generic All packages up-to-date as of 20131228.1000-UTC WORKAROUND: The problem solved after updating lightdm to version 1.8.5-0ubuntu1, available in saucy-proposed repository. After the lightdm upgrade I experience some performance issues related to plugin xfce4-xkb-plugin when switching between users. Seem to be resolved removing the plugin from all panels. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1247189 Title: [13.10] Ubuntu freezes completely when switching user Status in “lightdm” package in Ubuntu: Confirmed Status in “linux” package in Ubuntu: Incomplete Status in “xorg-server” package in Ubuntu: Confirmed Bug description: I'm using a freshly installed Ubuntu 13.10. As soon as I click on a different user I want to switch to in the gearbox menu I get a black screen and nothing else is happening. I'm still able to SSH to that box and top does not show any process taking 100% CPU. Alt+sysrq+b is able to reboot the system. I had no problem like this with Ubuntu 13.04 on the same computer. WORKAROUND: Disable the nvidia card in the BIOS. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: lightdm 1.8.2-0ubuntu1 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 Date: Fri Nov 1 17:40:41 2013 InstallationDate: Installed on 2013-10-30 (2 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MarkForUpload: True SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1247189/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp