https://bugs.freedesktop.org/show_bug.cgi?id=70388

--- Comment #6 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
For setting agpmode:

Add nouveau.agpmode=4 (or =0) on the kernel command line.

For the log:

I have no idea what journalctl -a gives you, but it certainly sounds like it's
not what we're looking for. Having a kernel log that includes the various hangs
would be super.

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