I couldn't find a way to edit my comment above. But I should add that I'm running focal fossa (though the same problem was going on in Bionic Beaver):
rafael@zim:~$ uname -a Linux zim 5.4.0-51-generic #56-Ubuntu SMP Mon Oct 5 14:28:49 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux rafael@zim:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.1 LTS Release: 20.04 Codename: focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1661987 Title: Wrong colours on some monitors via USB-C to HDMI To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1661987/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
