I can confirm bug. There is still no fixes. In my case active user session crashed every 5-6-th login (PC has 2 users) after entering passwords with this:
kernel: [213870.238364] compiz[2577]: segfault at 0 ip 00007f6f2adb1530 sp 00007fff39517d40 error 6 in libnvidia- glcore.so.352.63[7f6f29568000+19fd000] Ubuntu 14.04.4 with last updates kernel 3.13.0-85-generic compiz 1:0.9.11.3+14.04.20150313-0ubuntu1 lightdm 1.10.6-0ubuntu1 ** Attachment added: "full log" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/874200/+attachment/4637142/+files/syslog.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874200 Title: segfault when switching user To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/874200/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs