No password prompt is given after locking the screen

[Burko]

Hi,

occasionally when I lock my screen there is not prompt for entering the password presented. Therefore, I cannot unlock the screen anymore.
The only thing displayed is my Username in a frame, but not the username itself.

There are two ways to workaround the bug. Either rebooting the maschine or suspending it(for which I used another bug in the pwer management that enables me to suspend the maschine anyway). In the latter case a new login screen is displayed, very often with a textfield to enter the password

Please notice that this is only one bug in a series of issues with logging in in lightdm. I expect the issues to be interrelated and therefore sugest to have a look on the other reports as well, which a avaliable through my profile. I will provide direkt links later.

cheers

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lightdm 1.10.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic i686
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: i386
CurrentDesktop: Unity
Date: Tue Nov 18 17:18:29 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-01-13 (673 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
LightdmConfig:
 [SeatDefaults]
 user-session=ubuntu
 greeter-session=unity-greeter
 allow-guest=true
ProcEnviron:
 LANGUAGE=de_DE
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: Upgraded to trusty on 2014-09-14 (64 days ago)

[Burko (rs205)]

Probably related bugs on my machine:
https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1393855
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1393846
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1393843