This sounds like an HDMI connection/signalling problem. Please check to see if a direct connection (no receiver), and even a new cable, exhibits the same problem.
** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu) ** Summary changed: - Screen "disconnects" when updating screen buffer + [i915] Screen "disconnects" when updating screen buffer ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1926032 Title: [i915] Screen "disconnects" when updating screen buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1926032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs