I’m using Linux Mint 20 Cinnamon. I made a calibration of my screen with a Spider 2 and DisplayCAL. When I add (or remove) the .icc file in Gnome Color, I can see the colors changing on my screen (see screenshot). So, it’s OK.
But at the end of the calibration, DisplayCAL asked me if I wanted to register the calibration results and I said yes. Then, a new DisplayCAL application added itself in the list of applications loaded at startup (see screenshot). Must I remove it ? What about if DisplayCAL is loaded at Linux startup and just after, Cinnamon/Gnome Color loads the .icc profile ? Will I have two colors corrections ?