I forget to mention vasdi.... I did downgrade to xserver-xorg-input-evdev_2.10.1-1ubuntu2_amd64.deb and indeed it solved the problem.
Although I'm sure you will agree, an upgrade is preferable, so no doubt this needs to be addressed in the official Ubuntu repos. Thanks Aidan
I forget to mention vasdi.... I did downgrade to xserver- xorg-input- evdev_2. 10.1-1ubuntu2_ amd64.deb and indeed it solved the problem.
Although I'm sure you will agree, an upgrade is preferable, so no doubt this needs to be addressed in the official Ubuntu repos.
Thanks
Aidan