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Tell the Intel driver not to take over my backlight control
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Monq
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Joined: 11 Feb 2011
Posts: 40
Location: Spain

PostPosted: Wed Jun 07, 2017 3:36 pm    Post subject: Tell the Intel driver not to take over my backlight control Reply with quote

So, how do I tell the Intel video driver not to take over the backlight control of my display?

I use a patched DSDT table that works well on Windows, with my own custom _BCM/_BCL/etc methods. There, by editing the registry, I can tell the Intel driver to step away from the backlight control, and let the DSDT table do its job. How can I do the same with Gentoo?

I've tried all the kernel parameters I've found here, but no matter what, /sys/class/backlight/intel_backlight/ always appears.
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Monq
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Joined: 11 Feb 2011
Posts: 40
Location: Spain

PostPosted: Wed Jun 07, 2017 4:00 pm    Post subject: Reply with quote

Okay... I'm answering myself.

The answer was easy to find: I just had to read the kernel code. 8-)

acpi_backlight=video
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