Great! I checked and it was only a year ago that the rest of us noticed the problem and found a solution (including Matthew Paul Thomas, Robert Ancell and myself).
If the problem is still occurring in 18.04 then we need to do something about it. That something is to ensure Ubuntu ships with NO ACTIVE colour profile, which has been the fix for all of us so far... ** Tags added: bionic ** Summary changed: - Some applications render too dark when a 4K screen is attached. + Ubuntu default colour profile distorts colours on some machines (white looks green, too dark, or under-saturated) ** Package changed: ubuntu => colord (Ubuntu) ** Changed in: colord (Ubuntu) Status: Invalid => Confirmed ** Also affects: gnome-control-center (Ubuntu) Importance: Undecided Status: New ** Changed in: gnome-control-center (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785764 Title: Ubuntu default colour profile distorts colours on some machines (white looks green, too dark, or under-saturated) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1785764/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs