uncontrollable brightness with PC-BSD 11.0-CURRENT

[Anthony Jenkins]

I have patches to the ACPI DSDT tables of my HP Envy and to the radeonkms driver to control brightness via the Fn+Brightness keys.  You're using a different GPU, so the KMS bit would be different (probably unnecessary).  Try loading acpi_video(4) and seeing if the brightness keys work.  I can help you with ACPI bit.


https://wiki.freebsd.org/Laptops/HP_Envy_6Z-1100
Anthony Jenkins

________________________________
From: Graham Perrin <grahamperrin at gmail.com>
To: freebsd-x11 at freebsd.org 
Sent: Wednesday, December 16, 2015 2:32 AM
Subject: uncontrollable brightness with PC-BSD 11.0-CURRENT


HP EliteBook 850 G2; IntelCorei7-5500U with Intel HD Graphics 5500.

>From <https://forums.pcbsd.org/thread-20149-post-112331.html#pid112331>
for 11.0-CURRENTNOV2015:

> neither soft nor hard control of brightness (the soft control is
> present but ineffective)

>From <https://forums.pcbsd.org/thread-20149-post-112463.html#pid112463>
for 11.0-CURRENTDEC2015:

> as before, brightness is uncontrollable. 
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