Yes it sounds/looks like a signalling frequency problem if not a cable fault.
Check out bug 1606103 where some frequency problems with the modesetting driver are being investigated. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1631643 Title: 1920x1080 HDMI output is corrupted in 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1631643/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
