Comment 34 for bug 1311316

Margarita Manterola (marga-9) wrote :

This is happening much more often since the latest Unity releases. There were several changes done to the lockscreen and it seems that these changes made this problem more frequent.

It seems to be particularly frequent when the machine is under heavy load (i.e. compiling stuff), which seems to point to some kind of race condition that is made worse when things are going slow.