Comment 20 for bug 1227920

I have 1 machine where this occurs 100 % of the time. It's been doing this since at least when I filed bug on a month ago, probably a week or 2 longer than that.
Several days ago added a new install to same machine & happened to notice it no longer occurs.

So the diff here seems to be 'upower', specifically libupower-glib1
With upower packages (3 here) from upower_0.9.21-3ubuntu2 it always occurs
With packages from 0..9.22-1 it never occurs

If I downgrade to upower_0.9.21-3ubuntu2, log out/in, it comes back, upgrading to 0.9.22-1, log out/in, it stops

Maybe it's just this hardware where the above affects don't know, overall g-s-d is causing a number of small issues anyway.