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I've used both f.lux and redshift over the years. f.lux worked really well on the mac at work, but I had problems with it on my linux machines. Was using redshift till a few days ago. I recently switched to the "Night Light" that Gnome added as that also works on Wayland (I think f.lux/redshift don't support wayland yet)

[1] https://www.gnome.org/news/2017/03/gnome-3-24-released/

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Actually no program can support Wayland to change color temperatures except for the compositor.

You're right, though the compositor could provide an ipc mechanism to let another program tell it to change color temperatures. Sway (a Wayland compositor/window manager) works with a patched RedShift, and I assume this is how it does it.

If I understand correctly, they've implemented a new wayland protocol (extension?) https://github.com/SirCmpwn/sway/blob/master/protocols/gamma...

Is there any chance that Gnome Nightshift will make it into Ubuntu Unity?

Sort of. GNOME's implementation is tied to the compositor (because of restrictions Wayland puts in place), so Unity's would have to either reuse the code in their own compositor, or reimplement it from scratch. I think GNOME implements something that might now become a standard, so chances are that different implementations won't be terribly different.

Thank you!

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