[Bug 109209] i915 module results in total lockups without any dmesg trace on a NP900X5N Kaby Lake machine

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109209

--- Comment #7 from Jan <jv1 at home.nl> ---
Based on a hint in the freenode intel-gfx forum of [TJ] I added
intel_idle.max_cstate=1 yesterday. Tonight and today I ran the machine for more
than 24 hours with the i915 module running in graphics mode without any hang.

Today I also tested with cstate=2, which also runs fine. As soon as I use
cstate=3 the machine hangs in minutes.

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