Sorry, I was wrong in my previous post and it seems I cannot edit it... I uninstalled virtualbox-guest-x11 after upgrading and I wasn't able to use the full-screen mode and also I have some graphical glitches. I installed a new virtual machine and there are no graphical glitches and it works in full-screen mode. I supposed that the virtualbox-guest-x11 was installed but is not but the module vboxvideo is loaded.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1683043 Title: Black screen after installing virtualbox-guest-x11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox-guest-additions/+bug/1683043/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs