nouveau powermanagement causes system freeze after login

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Hi,

Did a fresh installation of fedora 25 on my new laptop, which has a nvidia geforce gtx960m.
My plan was to use opensource drivers only, and make use of PRIME afterwards, to save battery life.

I had to enable nomodeset during the installation, otherwise the system would freeze.

After the installation i removed the nomodesetoption, which causes the system to freeze after logging in to gnome.
When i set nouveau.modeset=0 in grub, i was able to login and work with the system. But then switcheroo-control service wouldn't work, and my battery life is really bad.

I thought maybe it could be related to the power management options in the nouveau driver, booting with the nouveau.runpm=0, enables me to login, and switcheroo-control service works.
However battery life is not that great, there is still a huge battery drain on my system.

Do more people have this problem and is it this a nouveau problem?

Thanks.

Kind regards,

Rob
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