[Bug 201867] Nouveau + discrete GPU (GP104M = GTX 1070 M) Driver Crashes, System freezes, dual screen not working

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=201867

--- Comment #1 from david.kremer.dk at gmail.com ---
I must add that the symptom as well as the concerned hardware starts to be
pretty well documented.

The problem arises with 

- recent nvidia mobile cards
- optimus technology built in
- intel integrated GPU (what else) ?

You can arrive to the same result using the `bbswitch` module or the
`acpi_call` module, trying to switch off the graphic card, *BUT*, since it's
really the `nouveau` driver job to do the work, and since it is already trying
to do it, I see no point in reporting bug for those modules.

See also:

- https://bugzilla.kernel.org/show_bug.cgi?id=156341
- https://github.com/Bumblebee-Project/Bumblebee/issues/1007
-
https://github.com/Bumblebee-Project/Bumblebee/issues/764#issuecomment-234494238

for consistent ways of reproducing the undesired behaviour.

The cheap hack to provide specific options for the `acpi_osi` driver should be
discouraged as it is not consistent across GPU models and Laptop models.

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