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paulherman

Member

Registered: 2013-09-24

Posts: 12

Asus N750JV Fn Keys

Hi,

I have tried to make the Fn keys work for Asus N750JV and managed to get all of them, except brightness. WIFi (Fn+F2) was fixed by adding acpi_osi="!Windows 2012", but I can't get the brightness key to work by adding acpi_backlight=vendor. My kernel is version is 3.11. Is there anything I can do?

Thanks,
Paul

rix

Member

Registered: 2012-07-25

Posts: 238

Re: Asus N750JV Fn Keys

Is such keys recognize (xev)?

A part from the keys, is brightness management working? If so you'd just add a keybind in your wm.

If doesn't, you'd try the following kernel parameters, alone or in various combinations:

acpi_osi="!Windows 2012"
acpi_osi="!Windows 2009"
acpi_osi="!Windows 2006"
acpi_osi=Linux
acpi_backlight=vendor
acpi_backlight=legacy

Then you'd set a systemd's tmpfiles. For example:

w /path/to/the/brightness/file  0664 root users - brightnessValue

And then in X you'd use app like xbacklight and also a simple

echo "brightnessValue" > /path/to/the/brightness/file

The path to the brightness file would be something like

/sys/class/backlight/

With intel I have

/sys/class/backlight/intel_backlight/brightness

And to find max value for brightness

/sys/class/backlight/intel_backlight/max_brightness

Hope that help.

Last edited by rix (2013-09-24 13:49:03)