I can confirm this is an actual bug as my system is affected too.
My system: Xubuntu 16.04 LTS, x86-64.
My system is an update to a 15.10 installation.
My solution is to switch to a virtual terminal (CTRL+ALT+F<n>) and then switch back to X session (CTRL+ALT+F7).
I can confirm this is an actual bug as my system is affected too.
My system: Xubuntu 16.04 LTS, x86-64.
My system is an update to a 15.10 installation.
My solution is to switch to a virtual terminal (CTRL+ALT+F<n>) and then switch back to X session (CTRL+ALT+F7).