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submitted 1 day ago* (last edited 1 day ago) by jpicture@lemmy.zip to c/linux@lemmy.ml

Does anyone here know how to disable or suspend all display colour management? I'm trying make some display profiles with a measurement instrument and no matter what I do, Wayland or Xorg, there is a persistent icc profile in effect which gets regenerated from the EDID.

I can't work out how to characterise the display without this profile being in effect, and unfortunately Displaycal and Argyll seem unable to disable it automatically.

Debian 13, GNOME 43

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[-] 69420@lemmy.world 2 points 18 hours ago

I don't know if this is still the case, but before Wayland came along, colord was the service that applied ICC profiles to a display. I'm not sure it still works on Wayland though. I feel like DisplayCal should be able to disable it, but you can too:

sudo systemctl stop colord
[-] jpicture@lemmy.zip 1 points 9 hours ago

This sounds very convenient and I think Wayland does use colord - will give it a go 👍

this post was submitted on 15 Apr 2026
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