[Bug 70791] [HSW ULT]eDP brightness is zero after the computer start

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70791

--- Comment #12 from Aaron Lu <aaron.lu at intel.com> ---
(In reply to comment #11)
> Sorry that I don't know how to get the acpidump. Can you please tell how to
> get it? Thanks.

Run as root
# acpidump > acpidump.txt
The acpidump is available in the kernel tree: $kernel_tree/tools/power/acpi,
just type make to get it. Or your distro may have packaged one.

> And when I get the acpidump, shall I use the kernel with the with the patch
> applied and video.use_native_backlight=1 set or without?

It doesn't matter.

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