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After unlocking my DICE session, mouse clicks don't work. Help?
Answer:
If I lock my screen (on my DICE machine) and unlock it again, I find that my mouse cursor moves but mouse clicks do not respond, effectively leaving me with a frozen screen. Is this a known issue?
Yes this does happen occasionally. If this happens to you, after unlocking, press Alt-Tab. This should allow you to get your session back.
To prevent this from happening again, type gnome-control-center in a Terminal (and press Return), then look for the Notifications section and turn off Notification Popups and Lock Screen Notifications.