Comment 10 for bug 965234

I can add further details:
- change screen background for edubuntu user choosing a picture from a vfat file system located on my hard disc.
- logout from edubuntu and login as another user with administrative proviledges. This user cannot mount the vfat file system containing the background picture
- shutdown the system
- enter as edubuntu user, the screen is reset, but when I switch to the second user, the vfat file system is correctly mounted.

I attach the output of mount command when the vfat file system is NOT seen. I'll attach the mount command output of a correct situation in a next post.

sandra@edubuntu:~$ mount
/cow on / type overlayfs (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
/dev/sdb1 on /cdrom type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
cgroup on /sys/fs/cgroup type tmpfs (rw,uid=0,gid=0,mode=0755)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/sda1 on /media/20E4C0C1E4C09B04 type fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
gvfs-fuse-daemon on /home/sandra/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=sandra)
sandra@edubuntu:~$