As far as I can see the lockscreen is the responsibility of the 'unity' package as of 14.04.
Not sure what the etiquette of changing this is, but I'm not sure it makes sense to make a new report. ** Package changed: gnome-screensaver (Ubuntu) => unity (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1291359 Title: multiscreen spanning wallpaper does not span on lock screen Status in “unity” package in Ubuntu: Confirmed Bug description: (It has same look as unity-greeter in lightdm but am given to believe lock screen is handled by gnome-screensaver; move if i'm wrong! lightdm seems to get it wrong a different way.) If, having made a wide wallpaper to span multiple monitors, and having set it as your wallpaper with type "Span" in Appearance settings, you then go to the new "Lock" screen... ... you will see that instead of that wide wallpaper spanning all monitors, you get the image scaled down to be shown whole on *each* monitor. As shown in screenshot attached. It needs to honour the appearance settings in this regard. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: gnome-screensaver 3.6.1-0ubuntu10 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Wed Mar 12 13:02:42 2014 GnomeSessionIdleInhibited: No GnomeSessionInhibitors: None GsettingsGnomeSession: org.gnome.desktop.session session-name 'ubuntu' org.gnome.desktop.session idle-delay uint32 300 InstallationDate: Installed on 2014-03-08 (3 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) SourcePackage: gnome-screensaver UpgradeStatus: Upgraded to trusty on 2014-03-10 (1 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1291359/+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