I tried to install newest HWE stack to get rid of the double cursor bug. As suggested in here I ran the following command:
sudo apt-get install --install-recommends linux-generic-lts-vivid xserver-xorg-core-lts-vivid xserver-xorg-lts-vivid xserver-xorg-video-all-lts-vivid xserver-xorg-input-all-lts-vivid libwayland-egl1-mesa-lts-vivid
which resulted in tons of unmet dependencies / broken packages. Full log.
Is there anything I can do bar clean install?