Do you have Skype chat enabled in Empathy? I am getting this behaviour, and have narrowed it down to the Empathy skype plugin, by enabling and disabling my different chat accounts, and then waiting for my computer to become 'idle'. The problem seems to disappear when I disable skype chat. Htorque mentions that this means that the system cannot determine one's status. So presumably, there is a bug with the Empathy skype plugin that prevents Empathy from guessing the status of Skype? (just guessing here)
Steps to reproduce the bug:
- install pidgin-skype from the software centre and restart Empathy
- enable skype chat in Empathy: first, launch the Skype app and log in, then back in Empathy choose Accounts> Add...> protocol=bigbrownchunx, enter your skype user name, play around with the options in case of errors.
- Then to test, search for Screensaver in the Dash, select, remove the option to activate the screensaver, and set 'idle time' to 1 minute. Wait for one minute: does the icon with three dots pictured above appear?
I have reported this as bug in pidgin-skype at Launchpad: bug #794191.