X-session-storing (Linux Mint)

Na een middagje iets te enthousiast hobbyen met een Linix Mint-computer, start Cinnamon niet meer op, met foutmelding:

/etc/mdm/Xsession: Beginning session setup...
localuser:carl being added to access control list
Setting IM through im-switch for locale=da_DK.
Start IM through /etc/X11/xinit/xinput.d/all_ALL linked to /etc/X11/xinit/xinput.d/default.
Failed to connect to theI haven't installed kernel service
Failed to connect to the VirtualBox kernel service
Failed to connect to the VirtualBox kernel service
Failed to connect to the VirtualBox kernel service
mkdtemp: private socket dir: Permission denied

De oplossing is verbijsterend:

sudo chmod 1777 /tmp

Bronnen

• http://ubuntuforums.org/archive/index.php/t-882717.html