You filed this report to ubuntu-docs (Ubuntu), i.e. the desktop documentation, which this certainly is not related to. So closing.
I would suggest that you seek support at e.g. <https://askubuntu.com> to start with in order to sort things out and determine if this is really a bug in some package or something else. ** Changed in: ubuntu-docs (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847593 Title: while booting up it gets blackout To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-docs/+bug/1847593/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs