I have installed both Redshift and f.lux on my Ubuntu 16.04 machine to try to change the color temperature of my screen. I can open the apps, but neither of them has an effect on the screen color tone. On F.lux, when I try to preview the color temperature, nothing happens. Does anybody know what could be going on here? Why isn't this working?
Note, I am using an NVIDIA GeForce GTX 980 Ti GPU.