It seems redshift doesn't run without an active internet connection. If so, is there some way it could be run when there's no connection to the Internet?
Update: Please note that a fix is now on its way. You can either wait until it arrives in the official repositories or apply it yourself by following the advice in post #53 and on in the bug report.
As Anwar pointed out, Redshift fetches its geolocation data online by default. There is a workaround, though:
a.) Using a config file
From the project's homepage:
Redshift will look for a configuration file in “~/.config/redshift.conf”. Here is an example:
; Global settings
[redshift]
temp-day=5700
temp-night=3500
transition=1
gamma=0.8:0.7:0.8
location-provider=manual
adjustment-method=vidmode
; The location provider and adjustment method settings
; are in their own sections.
[manual]
lat=55.0
lon=12.0
; In this example screen 1 is adjusted by vidmode. Note
; that the numbering starts from 0, so this is actually
; the second screen.
[vidmode]
screen=1`
Look for the directory provided above. If the configuration file doesn't exist, create one and append any custom options you like.
You will want to include location-provider=manual and modify lat= and long= with your location. This dialog will help you determine your coordinates.
b.) Using command-line arguments
Launch Startup Applications:
Find the Redshift entry in the startup app list and hit Edit. Under command enter the following string:
gtk-redshift -l LAT:LONG
Where LAT and LONG correspond with your coordinates. Hit save, then relog to activate Redshift.
