Linux Setup Guide

Redshift

Add this to .profile if using i3:

exec redshift

Otherwise run it from the Gnome launcher and set Autostart on so that it starts automatically upon logging in.

Configuration

Replace lat and lon with your coordinates.

; Global settings for redshift
[redshift]
; Set the day and night screen temperatures
temp-day=4700
temp-night=3300

; Enable/Disable a smooth transition between day and night
; 0 will cause a direct change from day to night screen temperature.
; 1 will gradually increase or decrease the screen temperature.
transition=1

; Set the screen brightness. Default is 1.0.
;brightness=0.9
; It is also possible to use different settings for day and night
; since version 1.8.
;brightness-day=0.7
;brightness-night=0.4
; Set the screen gamma (for all colors, or each color channel
; individually)
;gamma=0.8
;gamma=0.8:0.7:0.8
; This can also be set individually for day and night since
; version 1.10.
;gamma-day=0.8:0.7:0.8
;gamma-night=0.6

; Set the location-provider: 'geoclue', 'geoclue2', 'manual'
; type 'redshift -l list' to see possible values.
; The location provider settings are in a different section.
location-provider=manual

; Set the adjustment-method: 'randr', 'vidmode'
; type 'redshift -m list' to see all possible values.
; 'randr' is the preferred method, 'vidmode' is an older API.
; but works in some cases when 'randr' does not.
; The adjustment method settings are in a different section.
adjustment-method=randr

; Configuration of the location-provider:
; type 'redshift -l PROVIDER:help' to see the settings.
; ex: 'redshift -l manual:help'
; Keep in mind that longitudes west of Greenwich (e.g. the Americas)
; are negative numbers.
[manual]
lat=111.0
lon=-222.0

; Configuration of the adjustment-method
; type 'redshift -m METHOD:help' to see the settings.
; ex: 'redshift -m randr:help'
; In this example, randr is configured to adjust screen 1.
; Note that the numbering starts from 0, so this is actually the
; second screen. If this option is not specified, Redshift will try
; to adjust _all_ screens.
[randr]
screen=0

i3

All of the i3 configuration is in file ~/.config/i3/config.

Natural scrolling

exec --no-startup-id synclient HorizEdgeScroll=1 VertEdgeScroll=1 HorizTwoFingerScroll=1 HorizScrollDelta=-27 VertScrollDelta=-70

The variables are device-specific. Run synclient with no arguments to see the options available for your device.

The negative values for HorizScrollDelta and VertScrollDelta are what invert the direction of the scroll for natural scrolling.

Fn / Media Keys

# Pulseaudio controls
bindsym XF86AudioRaiseVolume exec --no-startup-id pactl set-sink-volume 0 +5% # increase sound volume
bindsym XF86AudioLowerVolume exec --no-startup-id pactl set-sink-volume 0 -5% # decrease sound volume
bindsym XF86AudioMute exec --no-startup-id pactl set-sink-mute 0 toggle # mute sound

# Screen brightness (needs custom script, see comment below)
bindsym XF86MonBrightnessUp exec sudo $HOME/.scripts/backlight.sh -inc 45 # increase screen brightness
bindsym XF86BrightnessDown  exec sudo $HOME/.scripts/backlight.sh -dec 45 # decrease screen brightness

# Media player controls
bindsym XF86AudioPlay  exec playerctl play
bindsym XF86AudioPause exec playerctl pause
bindsym XF86AudioNext  exec playerctl next
bindsym XF86AudioPrev  exec playerctl previous

For the screen brightness controls, create the following script under ~/.scripts/backlight.sh:

#!/bin/bash
set -e

# Modify this to point to your monitor device.
# A good starting point is `ls /sys/class/backlight`.
# https://wiki.archlinux.org/index.php/backlight
file="/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/brightness"

current=$(cat "$file")
new="$current"
if [ "$1" = "-inc" ];
then
    new =$(( current + $2 ))
fi
if [ "$1" = "-dec" ]
then
    new=$(( current - $2 ))
fi
echo "$new | tee $file"

Now configure sudo to be able to run the script as sudo without entering a password. We will want this since we will be calling this script by pressing on the screen brightness keys. Run sudo visudo and enter the following line at the end of the file (replace "user" with your user name):

user ALL = (root) NOPASSWD: /home/user/.scripts/backlight.sh