ubuntu: authentication is required to create a color profile/managed device
This is a solution I found at https://devanswers.co/how-to-fix-authentication-is-required-to-create-a-color-profile-managed-device-on-ubuntu-20-04-20-10/ while trying to solve this annoying problem. Save it! “… Now reboot Ubuntu and try logging in again over RDP / Windows Remote Desktop and the popups should be gone ….“