More information: as the bug report in Debian says, changing the driver to "intel" seems to fix the problem.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1677745 Title: Xcalib not working in any way To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xcalib/+bug/1677745/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs