Update: I spoke too soon. After another reboot I just get endless i915 crashes and X dialogs telling me I'm in low graphics mode - so only text mode for me. Various attempts to purge and reinstall Nvidia/Bumblebee failed, probably because this seems to be an Intel problem.
I'm attempting to upgrade to 16.04 in the hopes that a 4.4 kernel will work.
Update: I spoke too soon. After another reboot I just get endless i915 crashes and X dialogs telling me I'm in low graphics mode - so only text mode for me. Various attempts to purge and reinstall Nvidia/Bumblebee failed, probably because this seems to be an Intel problem.
I'm attempting to upgrade to 16.04 in the hopes that a 4.4 kernel will work.