Comment 93 for bug 353278

I fixed this problem with:

   echo 16384 > /proc/sys/fs/inotify/max_user_watches

To make it permanent, create /etc/sysctl.d/60-user.conf with the content below:

   fs.inotify.max_user_watches=16384

Before applying the fix, I got the errors below:

kent@dragon:~$ kpackagekit &
[2] 3561
kent@dragon:~$ QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No space left on device
QFileSystemWatcher: failed to add paths: /home/kent/.config/ibus/bus/fc60bfcf9319c7743716b7214863c295-unix-0
enumFromString ( Group ) : converted "unknown" to "UnknownGroup" , enum value 34
removing transaction from pool : "/108_eccdeaed_data"
removing transaction from pool : "/109_ceadbdca_data"
removing transaction from pool : "/110_bcdbadea_data"
enumFromString ( State ) : converted "" to "UnknownState" , enum value 18
Attempting to obtain authorization for org.freedesktop.packagekit.system-update.
Authentication as an administrative user is required.
The following users qualify as administrative users: kent
Select user: Failed to obtain authorization for org.freedesktop.packagekit.system-update.
Authentification error : org.freedesktop.DBus.Error.NoReply : Message did not receive a reply (timeout by message bus)
removing transaction from pool : "/111_eebdaaba_data"