Can you see if the bug still happens when booting a Trusty kernel on the Xenial system? This can be down by downloading the kernel from:
https://launchpad.net/~canonical-kernel- team/+archive/ubuntu/ppa/+build/10184623 You will need to install both the linux-image and linux-image-extra .deb packages. If the bug still happens, it may indicate a bug in GRUB. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1603810 Title: Ubuntu turns monitor permanently off during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1603810/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs