I've marked this bug as fix released since that appears to be the case. The issues I mentioned regarding semi-transparent backgrounds seem to be an unrelated bug #1780664 in mesa.
** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776642 Title: Temporal dithering and impaired graphical performance started appearing on Intel HD 530 graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776642/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs