Dear all. I have the same problem after upgrading from 13.04. Only now I use ubuntu 13.10 GNOME running GDM.
[Although I had the same problem when I tried unity with lightdm - History: I was so frustrated I tried Unity (32 & 64 bit) and now Gnome all with the same results.] Ubuntu Gnome 13.10 32-bit. NVIDIA Corporation GT218M (NVS 3100M/PCIe/SSE2) 3.8.0-34-generic GDM 3.8.4 I switch user. I have the new user session. I then alt-ctl-f7. I then have a frozen background-artwork-only graphic screen for the 1st user session. No alt-ctl-f1,2,3,4,5,6,7 and so on. I have not yet tested if I am able to ssh into the machine after it hangs. Please advise of any additional info or tasks needed. I am currently away on leave but shall be able to attend to instructions from you re this matter from 2nd last week Jan'14 onward. This really affects me allot as I have seperate business and home user id's and switched allot in 13.04. Kind regards, Justin -- 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
