Fn-key.txt

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Wiki-Format: zim 0.4
Creation-Date: 2016-12-26T20:24:02+01:00

====== Fn-key ======
Created mandag 26 december 2016

**Getting the Function-key to work took a little more work than I anticipated. **
**Out of the box **//monitor-off //**and **//wifi-off//** worked (sort of)**

**I was missing **//keyboard/screen-backlight, audio //**and **//touchpad//** controls.**

**The **//wifi-off//** worked somewhat. **
**It turns off the WIFI, but is unable to re-connect when re-enabled.**

**All of the key-presses was registered, and produced a **[[wiki.linuxquestions.org/wiki/XF86_keyboard_symbols|xf86*-multimedia output]]**.**
**Well.. all except **//keyboard-backlight//** which is caused by a bug (fix below)**

**This article will take help combine the **//xf86*-multimedia//** key-press with a function.**

== Screen Backlight ==
**#** **There is a** **bug causing **//FN+F5/F6//** not to produce any output at all.**
**# This can be resolved by adding **//acpi_osi= //**as a kernel module. **

**# Edit **///etc/default/grub//** and add **//acpi_osi=//** to the end of **//CMDLINE_LINUX_DEFAULT//
**# Ex.**
{{{code: lang="texinfo" linenumbers="True"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash elevator=bfq acpi_osi="
}}}

	
**# Generate new grub.cfg**
$ grub-mkconfig -o /boot/grub/grub.cfg

**# No further configuration is needed for the **//Screen-Backlight//**.**

===== Xbindkeys =====
**# **//Xbindkeys//** can be used to bind a key-press with a function.**
**# **//Xbindkeys//** reads its configuration from **//~/.xbindkeysrc //**(Github)**

**# Install the **//Xbindkeys//** package**
$ pacman -S xbindkeys

**# To autostart **//Xbindkeys//**, add it to your **xinitrc.
	xbindkeys &

**# To get valueable information about a key-press**
$ xbindkey -k

**# This will produce 3 lines. Ex.**
	"(Scheme function)"
		m:0x0 + c:121
		XF86AudioMute

**# First line can be replaced with a command to run**
**# Second and Third line can be used as binding parameters.**
**# We just need one of the last two lines, and we'll be using the **//xf86*//** value.**

**# All of these definings will be added to our **//~/.xbindkeysrc//** file.**

== Volume Controls ==
**# Requires PulseAudio and Pulseaudio-ctl**
**# Toggle mute **
{{{code: lang="texinfo" linenumbers="True"
"pulseaudio-ctl mute"
	XF86AudioMute
}}}


**# Volume Up**
{{{code: lang="texinfo" linenumbers="True"
"pulseaudio-ctl up"
	XF86AudioRaiseVolume
}}}


**# Volume Down**
{{{code: lang="texinfo" linenumbers="True"
"pulseaudio-ctl down"
	XF86AudioLowerVolume
}}}


== Keyboard Backlight ==
**# We wont get the full experience with 3 steps backlight strenght - rather a 1 setting on/off**
**# This is still preferable from the lousy **//asus-kbd-backlight//** package from AUR, which works for 5 min.**
**# Install the **//upower //**package (used by all major DE basically) **
$ pacman -S upower

**# Add these two snippets to the **//~/.xbindkeysrc//
{{{code: lang="texinfo" linenumbers="True"
"dbus-send --type=method_call --print-reply=literal --system --dest="org.freedesktop.UPower" /org/freedesktop/UPower/KbdBacklight org.freedesktop.UPower.KbdBacklight.SetBrightness int32:2"
	XF86KbdBrightnessUp

"dbus-send --type=method_call --print-reply=literal --system --dest="org.freedesktop.UPower" /org/freedesktop/UPower/KbdBacklight org.freedesktop.UPower.KbdBacklight.SetBrightness int32:0"
	XF86KbdBrightnessDown
}}}


== Toggle Touchpad ==
**# Touchpad Toggle script is found at Github.**
**# My location for this script would be **//~/.dotfiles/.scripts/toggle_touchpad.sh//
**# Link to that script in the **//~/.xbindkeysrc//** file.**
{{{code: lang="texinfo" linenumbers="True"
	"~/dotfiles/scripts/toggle_touchpad.sh"
		XF86TouchpadToggle
}}}