If the question is related to the colour management warning, it means that there are different profiles reported by the two sources darktable can use. The x-atom source is not set; colord is set to some automatically generated (EDID) profile, I think.
There’s an old thread here:
There’s a setting in darktable’s preferences governing where the display profile is obtained from. The choices are x-atom, colord or both.
I assume you are not working with a profiled display. Maybe you should set that config option to colord, I assume the automatic profile is better than nothing. I could be wrong, of course.