[Nouveau] [Bug 69488] GF108 (NVC1) GPU lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69488

--- Comment #8 from Kevin N. <vekinn at gmail.com> ---
Works in discrete mode.

Probably unrelated but I can manage to make it lock up in Optimus configuration
if I plug in displayport while Xorg is running.
I see this in journalctl
Sep 27 08:57:46 sawako kernel: nouveau 0000:01:00.0: Refused to change power
state, currently in D3
Sep 27 08:57:47 sawako kernel: nouveau 0000:01:00.0: Refused to change power
state, currently in D3
Sep 27 08:57:47 sawako kernel: nouveau 0000:01:00.0: Refused to change power
state, currently in D3

If I start the laptop with it already plugged in displayport works and it
doesn't lock up.  But I noticed that if I turn off the DP-1 and unplug it, the
card never powers down.
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :DynPwr:0000:01:00.0

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