[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

--- Comment #4 from Shannon Gaines (iknstudio at protonmail.com) ---
As suggested in IRC, I tried nouveau.modeset=0. It didn't help with the
backlight issue, without or without non-free firmware. So I believe the issue
isn't related to modesetting.

To be clear, I tested:
 - nouveau + modeset=0 + no firmware
 - nouveau + no firmware
 - nouveau + modeset=0 + firmware
 - nouveau + firmware

And nothing helped.

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