11

A few weeks ago I installed the redshift application using:

sudo apt-get install redshift redshift-gtk

I've faced a lot of bugs with it, including not being able to disable it. It finally got to the point tonight where I uninstalled it, using:

sudo apt-get remove --purge redshift redshift-gtk

However, my screen is still tinted red. Doing the below removes no processes:

chris@pc:~$ sudo killall redshift
redshift: no process found
chris@pc:~$ sudo killall redshift-gtk
redshift-gtk: no process found

Looking through htop I can't see anything resembling redshift, although I may be overlooking something.

How can I end this once and for all? I'd rather avoid rebooting as I have a lot of applications open and I'd like to not have to reopen my workflow.

John Dorean
  • 263
  • 1
  • 3
  • 8

3 Answers3

17

You can now use redshift -x to reset everything:

-x Reset mode (remove adjustment from screen).

Pablo Bianchi
  • 17,371
exhume-to-consume
  • 171
  • 1
  • 2
16

What Redshift does is to set the colour temperature of your screen from 6500 (normal color temperature) to 3700 ("night" setting for Redshift).

What probably happened is that you removed the application while your screen was set to 3700. By removing Redshift, it was left in that state.

What you need to do

You have two options:

  • Try to set the colour temperature of your screen back, manually, to 6500 (via the button menu that most screens have)

or

  • Reinstall Redshift; don't run the interface, but set the temperature from command line:

    redshift -O 6500

    Then uninstall redshift again.

Either one of these options should work.

Jacob Vlijm
  • 85,475
1

A very simple way to disable Redshift is to go to Settings>Startup applications, and than to put Redshift on “off” (or remove it from the startup applications list), and now reboot the computer. Redshift will be off. If you will like to start it again – just click the icon and it will start. To find the right color temperature - watch this link: https://www.maketecheasier.com/protect-eyes-redshift-linux/

Arnon
  • 11
  • 2