Comment 0 for bug 1778011

Relying on the nouveau driver and on the vga switcheroo (to get around a change in systemd LP: #1777099) caused increased power consumption, and slowed down the switching process.

Solving the problem in systemd (LP: #1777099), and adding code in gpu-manager and in nvidia-prime to unload the nvidia modules, and to allow the PCI device to sleep, dramatically decreases power consumption.