@Stefan: When you're using nouveau.runpm=-1, nouveau is always used to dynamically power down the card. This works because a Dell XPS 9550 ships with a GeForce GTX 960M, which nouveau is actually able to power down, unlike the more recent XPS 560 with a GTX 1050.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1765363 Title: prime-select intel is not powering off the nvidia card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1765363/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs