I noticed this behaviour just this morning with 16.04 and gnome-shell 3.24.1-0ubuntu, I came back after the screen had timed out to lockscreen and the desktop interaction was very sluggish to login (several seconds to respond) and then all desktop apps were locked for perhaps 30 sec to a minute
I noticed this behaviour just this morning with 16.04 and gnome-shell 3.24.1-0ubuntu, I came back after the screen had timed out to lockscreen and the desktop interaction was very sluggish to login (several seconds to respond) and then all desktop apps were locked for perhaps 30 sec to a minute