Public bug reported:
Sometimes I have the problem that I can't unlock my session (for
example, after resuming from suspend). The problem seems to be related
to my dual head setup. I have a laptop (the primary monitor) and an
external VGA monitor.
When I got this problem yesterday, at home, I couldn't log in to my
session. I typed my password in the box, black dots showed up, but when
I hit "enter" or "unlock", nothing happened. I could, however, log in to
a terminal (alt-F5 for example). I couldn't find any output relating to
login in auth.log or syslog.
When I suspended the computer, the external monitor was plugged in. When
I resumed at home, it was disconnected.
Today, connecting the external monitor at work, and resuming again, I
noticed that the login box on the laptop display had the black dots in
it from yesterday, but there was another login box at the VGA monitor
which was empty. I typed in my password on the external monitor instead,
and then I could log in.
I'm running Kubuntu 13.04, with lightdm 1.6.0-0ubuntu3.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: lightdm 1.6.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic i686
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: i386
Date: Wed Aug 21 09:13:56 2013
InstallationDate: Installed on 2013-04-29 (113 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
LightdmConfig:
[SeatDefaults]
user-session=kde-plasma
greeter-session=lightdm-kde-greeter
MarkForUpload: True
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 raring third-party-packages
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https://bugs.launchpad.net/bugs/1214751
Title:
Can't unlock session when external monitor disconnected
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