1. Change background and select an automatically changing background (for example, "Ubuntu 14.04 Community Wallapers" which is defined by /usr/share/backgrounds/contest/trusty.xml).
2. Wait about 1/2 hr and notice that the background automatically changes.
3. Lock the screen and notice the changed background appears on the user's Light DM lock scren.
4. Log back in.
5. Now, log-out of the user's account to show the Light DM Login screen.
6. Notice that the changed background does *not* appear on the user's Light DM login scren. The Ligh DM screen is blank. (This is the issue; the same background that was shown on the user's home screen and the user's Lock screen should appear here).
7. Now, login to the same user's account.
8. Notice there is screen corruption / tearing for a few seconds until the user's correct dynamic background is displayed and the screen is repainted. (This may be a side-effect of the issue in step 6).
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: evince 3.10.3-0ubuntu10
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: Unity
Date: Sun May 25 10:01:08 2014
InstallationDate: Installed on 2014-04-28 (26 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: evince
UpgradeStatus: No upgrade log present (probably fresh install)
that has been reported as bug #918617