Not a solution to the bug, but a solution to the problem...
I have found that the driver for my graphics card (GeForce 210) has been updated from nvidia-304 to nvidia-340, both drivers being listed in Ubuntu 16.10 as available for my card.
Anyone else with the problem as reported can check this by running the following command:
$ ubuntu-drivers devices
This will tell you which drivers are available for your installed graphics card, I suggest picking the one marked 'recommended' for your card.
Not a solution to the bug, but a solution to the problem...
I have found that the driver for my graphics card (GeForce 210) has been updated from nvidia-304 to nvidia-340, both drivers being listed in Ubuntu 16.10 as available for my card.
Anyone else with the problem as reported can check this by running the following command:
$ ubuntu-drivers devices
This will tell you which drivers are available for your installed graphics card, I suggest picking the one marked 'recommended' for your card.