I fixed this issue changing rights with sudo chmod o+rx -R /home/user https://bugs.launchpad.net/bugs/888186
Could be chequed with some script -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity-greeter in Ubuntu. https://bugs.launchpad.net/bugs/944862 Title: Non-default wallpaper does not display in lightdm with encrypted home directory Status in “unity-greeter” package in Ubuntu: Confirmed Bug description: When selecting my username in lightdm before logging in, the wallpaper I have selected does not display. This happens only if I use a picture from my home directory, which is encrypted. If I select one of the system-wide wallpapers it switches correctly. While this makes perfect sense before logging in (when the directory is not mounted with ecryptfs) this occurs also during user switching. Perhaps when it is changed by the user, the wallpaper image could be cached somewhere that lightdm could read it. I'm not sure what the security implications are here though -- is wallpaper something to be concerned about keeping hidden in this context? ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: lightdm 1.1.4-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6 Uname: Linux 3.2.0-17-generic x86_64 ApportVersion: 1.93-0ubuntu2 Architecture: amd64 Date: Fri Mar 2 09:57:20 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/944862/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

