Comment 8 for bug 1623793

I've just discovered https://bugs.launchpad.net/wingpanel-indicator-power/+bug/1650771

I can confirm that the wingpanel "unfreezes" as soon as I unplug my Logitech receiver. It seems to be the cause of the problem in my case (I use the receiver only while connected to an external screen and have used it on both my Samsung series 9 and Dell XPS 13)