Comment 8 for bug 816700

I suppose is the same bug.. In the lightdm login screen my mouse click dont work sometimes.
I cannot select session or click on the top bar. If i put the cursor on the little icon to select session, icon don't change, no reaction.. i can just login with the previous session that i selected the last time, cannot reboot, cannot shutdown..

It work again if i logon into a session and disconnect..