Hi, I have the same problems with my new MSI GP62 6QF laptop. It has a geforce gtx960m videocard. I installed fedora 25 on it. The only way to login into the system (gnome) was to disable the nouveau powermanagement with grub option nouveau.runpm=0. I did manage to login into the system with option: acpi_osi=! "acpi_os=Windows 2013" In /sys/kernel/debug/vgaswitcheroo/switch is see the following: 0:IGD:+:Pwr:0000:00:02.0 1:DIS: :DynOff:0000:01:00.0 But it looks like it is not working properly, i see the red light on the power button, meaning the other card is active as well. I also tried the option: i915.modeset=-1 nouveau.runpm=-1, occasionally i can login, but the the system freezes completely. It this a kernel bug or nouveau bug? Thanks.