[Bug 208661] Backlight doesn't work with both nv_backlight and acpi_video

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=208661

Ilia Mirkin (imirkin at alum.mit.edu) changed:

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                 CC|                            |imirkin at alum.mit.edu

--- Comment #3 from Ilia Mirkin (imirkin at alum.mit.edu) ---
So given that this works via acpi_video with NVIDIA's drivers, this suggests to
me that nouveau is either doing something it shouldn't, which breaks the acpi
method, or it doesn't do something which enables the acpi method to work.

Unfortunately I'm not an expert on the ACPI stuff, so we need to

1. Figure out how acpi_video works (BCL method? something like that)
2. Find the method in the acpi dump, and decode it
3. Profit...

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