As it happens it seems during the upgrade gnome-screensaver was
uninstalled.
After re installing it, lock screen works just fine.
** Changed in: gnome-settings-daemon (Ubuntu)
Status: Incomplete => Invalid
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1167408
Title:
Lock screen does not work
Status in “gnome-settings-daemon” package in Ubuntu:
Invalid
Bug description:
Ctrl+Alt+L or "Lock" via the main menu does not lock the screen
(nothing visible happens).
The problem also occurred in 12.10 and persists after an upgrade to
13.04 (post Beta2).
Not sure if I should select the "This bug is a security vulnerability"
as the inability to lock the screen makes more difficult to leave the
computer unattended and not accessible to 3rd parties.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: lightdm 1.5.3-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-17.27-generic 3.8.6
Uname: Linux 3.8.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
Date: Wed Apr 10 11:15:09 2013
InstallationDate: Installed on 2013-02-13 (56 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
LightdmConfig:
[SeatDefaults]
user-session=ubuntu
greeter-session=unity-greeter
MarkForUpload: True
SourcePackage: lightdm
UpgradeStatus: Upgraded to raring on 2013-04-09 (0 days ago)
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