how to automate redshift? [solved]

[squid]

I'm a noob, I've tried writing a cronjob/script the cronjob below isn't working but the standalone command works.

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redshift -gtk -o

what should i change here below to make it work?

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* 19 * * * /usr/bin/redshift-gtk -o 3000
* 4 * * * /usr/bin/redshift-gtk -x

[1000]

You can use Cron or Autostart
viewtopic.php?f=18&t=333839&p=1911005&h ... n#p1911005

This is very old example setup from system (setup autostart from system from Graphic Environment)
https://www.youtube.com/watch?v=obR3zxvXGWI

Warning
There are two applications
redshift this app working from terminal
redshift-gtk app with GUI

and

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$ redshift-gtk --help
Run `redshift -h` for help 

So I have doubts if the options in the video will work, you need check if you want use.
I may be wrong.

Edit
Example for Cron
with redshift-gtk which you can test, but you need edit path "/user_name/" and "user_name"

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@reboot      sleep 10 && export DISPLAY=:0.0 && export XAUTHORITY=/home/user_name/.Xauthority && sudo -u user_name /usr/bin/redshift-gtk

[1000]

This tutorial is interesting
https://www.maketecheasier.com/protect- ... ift-linux/

but there is gtk-redshift

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$ locate redshift | grep bin |  xargs  ls -l
lrwxrwxrwx 1 root root    12 gru 27 13:23 /usr/bin/gtk-redshift -> redshift-gtk
-rwxr-xr-x 1 root root 71912 gru 27 13:23 /usr/bin/redshift
-rwxr-xr-x 1 root root   986 gru 27 13:23 /usr/bin/redshift-gtk

so on Linux Mint 20.1 I have in system link to redshift-gtk.
So "gtk-redshift" command should also work.

[AZgl1800]

I just have Redshift installed, then manually set it for the way my eyes feel.
I set up custom short cuts.

______________________________________

Redshift Evening redshift -O 4500
Redshift Bedtime redshift -O 3700
Redshift Morning redshift -O 6500
Keyboard Custom shortcuts have to be created to make this work.

[Welcome]

I'm a noob, I've tried writing a cronjob/script the cronjob below isn't working but the standalone command works.

Code: Select all

redshift -gtk -o

what should i change here below to make it work?

Code: Select all

* 19 * * * /usr/bin/redshift-gtk -o 3000
* 4 * * * /usr/bin/redshift-gtk -x

Both 1000 and AZgl1500 have provided excellent solutions. Using 1000's information, I found that the following cron settings work perfectly for me with one monitor:

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0 19 * * * export DISPLAY=:0 && /usr/bin/redshift -o 3000
0 4 * * * export DISPLAY=:0 && /usr/bin/redshift -x

If you have multiple monitors, you'll need something like this to specify the monitor to control (note the extra ".0" on DISPLAY):

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0 19 * * * export DISPLAY=:0.0 && /usr/bin/redshift -o 3000
0 4 * * * export DISPLAY=:0.0 && /usr/bin/redshift -x

You may notice that I'm using the command "redshift" and not "redshift-gtk". The command "redshift" is the binary that you'll want to use. The command "redshift-gtk" is a python script that calls redshift, but provides the system panel control and may use the file ~/.config/redshift.conf if you've created it. If you've activated redshift-gtk, I recommend that you "Quit" the app if you're using cron with redshift (see the little lightbulb icon in your lower right system panel, right click, select "Quit")..

Finally, I've found that I needed a little gamma correction on my test machine, so I added the gamma correction as follows:

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0 19 * * * export DISPLAY=:0 && /usr/bin/redshift -o 3000 -g 0.7:0.7:0.7
0 4 * * * export DISPLAY=:0 && /usr/bin/redshift -x

The method used by AZgl1500 is an excellent solution and gives a lot of control over when to use your settings. But, if you want a more automated method, I've found the use of the ~/.config/redshift.conf file and the redshift-gtk program to be very useful. It can be set to autostart on boot, and it'll automatically adjust the screen based on your lat/lon location (that is, it knows when sunrise and sunset occurs for you on every day of the year and adjusts automatically). Here's an example of that file:

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; Global settings
[redshift]
temp-day=6200
temp-night=3500
transition=1
gamma=0.7:0.7:0.7
location-provider=manual
adjustment-method=vidmode

; The location provider and adjustment method settings
; are in their own sections. This is an example of a manual setting.
[manual]
lat=37.2
lon=-88.1

; In this example screen 0 is adjusted by vidmode. Note
; that the numbering starts from 0, so this is actually
; the first screen.
[vidmode]
screen=0

If you use redshift-gtk, don't use the cron solution (and vice-versa). Doing both could cause problems.

I hope this helps. If your question has been answered, please edit the title of your first post in this thread and add <SOLVED> so that others will know that you've found a solution.