It seems to be that the problem occurs after this: ** (lightdm:1153): WARNING **: Error using VT_WAITACTIVE 7 on /dev/tty0: Interrupted system call
(The console number depends on luck, of course.) I would guess that whatever code is emitting that error message is not handling the situation correctly. In case of "Interrupted system call" I would guess the correct way to handle the problem is to repeat the system call. I think the code instead emits this error and proceeds blindly forward. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/997483 Title: VT_WAITACTIVE does not work well with a multiseat setup Status in Light Display Manager: In Progress Status in lightdm package in Ubuntu: In Progress Bug description: Related to the fix introduced in bug #851612 . Saw this in lightdm.log (system call interrupted because of ctrl-alt-del pressed): [+2.97s] DEBUG: New display ready, switching to it [+2.97s] DEBUG: Activating VT 8 [+77.56s] WARNING: Error using VT_WAITACTIVE 8 on /dev/console: Interrupted system call [+77.56s] DEBUG: Got signal 15 from process 1 [+77.56s] DEBUG: Caught Terminated signal, shutting down And in x-1-greeter.log: [+0.48s] DEBUG: Loading users from org.freedesktop.Accounts [+0.48s] DEBUG: Loading user /org/freedesktop/Accounts/User1001 [+0.50s] DEBUG: Loading user /org/freedesktop/Accounts/User1000 [+50.56s] WARNING: Error getting session list from org.freedesktop.DisplayManager: Timeout was reached On vt7, unity-greeter would get stuck after password input. On vt8, unity-greeter appears after that "getting session list timeout", which is about a minute later than vt7, and does not have a password input field. lightdm blocked by VT_WAITACTIVE may be the cause... Tested with lightdm 1.2.0-0ubuntu2 in precise. To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/997483/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp