On my system the bumblebee gets pulled because synaptics has been configured to treat recommends as dependencies. I guess that bumblebee maybe should have been marked as 'suggests'?
Anyway, after selecting / upgrading nvidia 331 but before actually applying the upgrade I have deselected bumblebee, bbswitch, primus and socal (whatever that may be), now works.
Also now changed by synaptics setting to not automatically pull recommends.
On my system the bumblebee gets pulled because synaptics has been configured to treat recommends as dependencies. I guess that bumblebee maybe should have been marked as 'suggests'?
Anyway, after selecting / upgrading nvidia 331 but before actually applying the upgrade I have deselected bumblebee, bbswitch, primus and socal (whatever that may be), now works.
Also now changed by synaptics setting to not automatically pull recommends.