Failed to run /usr/sbin/synaptic Unable to copy the user’s Xauthorisation file

If you get the following error while running Synaptic:
Failed to run /usr/sbin/synaptic
Unable to copy the user’s Xauthorisation file.
Make sure to that you have enough space in your /tmp directory.
To check if that is indeed the problem run the following command in your terminal:
df -h
This command will show you each mounted volumes you may have including [...]

posted in Linux, Tips n' Tricks, Ubuntu by Eran Sandler