I can confirm that installing nvidia-390 through the Ubuntu driver dialog, and then using nvidia-settings or prime-select to set intel keeps the nvidia card on for me on my GeForce 840M laptop. I can also confirm Installing bbswitch-dkms and turning it off through bbswitch works.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/1778011 Title: SRU: PRIME Power Saving mode draws too much power To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1778011/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp