This still happens to me as soon as an User is logged in. It has a nasty side effect in munin, which tries to get harddisk usage using df. df's return value in that case is not 0, so the result is not being processed. While it's possible to fix that in munin, its nevertheless a bit strange that df return's that error and therfore return 1 as error value.
$ df -h .... df: „/var/lib/lightdm/.gvfs“: Permission denied $ echo $? 1 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/867806 Title: df -h permission denied error Status in “lightdm” package in Ubuntu: Fix Released Bug description: Running "df -h" from the cli as a normal user returns: Filesystem Size Used Avail Use% Mounted on /dev/md0 37G 6.6G 29G 19% / udev 796M 8.0K 796M 1% /dev tmpfs 322M 888K 321M 1% /run none 5.0M 0 5.0M 0% /run/lock none 805M 92K 805M 1% /run/shm /dev/sda3 1.8T 265G 1.6T 15% /mnt/d1 /dev/sdb3 1.8T 1.7T 102G 95% /mnt/d2 /dev/sdc3 893G 33M 893G 1% /mnt/d3 df: `/var/lib/lightdm/.gvfs': Permission denied $ running with "su" $ sudo df -h Filesystem Size Used Avail Use% Mounted on /dev/md0 37G 6.6G 29G 19% / udev 796M 8.0K 796M 1% /dev tmpfs 322M 888K 321M 1% /run none 5.0M 0 5.0M 0% /run/lock none 805M 92K 805M 1% /run/shm /dev/sda3 1.8T 265G 1.6T 15% /mnt/d1 /dev/sdb3 1.8T 1.7T 102G 95% /mnt/d2 /dev/sdc3 893G 33M 893G 1% /mnt/d3 $ ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: bash 4.2-0ubuntu4 ProcVersionSignature: Ubuntu 3.0.0-10.16-server 3.0.4 Uname: Linux 3.0.0-10-server x86_64 ApportVersion: 1.23-0ubuntu2 Architecture: amd64 Date: Tue Oct 4 14:17:28 2011 InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426) ProcEnviron: SHELL=/bin/bash LANG=en_US.UTF-8 SourcePackage: bash UpgradeStatus: Upgraded to oneiric on 2011-09-05 (29 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/867806/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp