BertN45, given 3D acceleration is a WORKAROUND, Low is in line with its definition noted in https://wiki.ubuntu.com/Bugs/Importance . To advise, the potential difficulty in solving a bug has no impact on Importance.
Despite this: 1) What version of VirtualBox are you using on the host? 2) Did this issue start happening in the guest after an update from either the guest, or host? If so, which specifically? 3) In your last comment, it appears you are indicating that this only happens in 17.10 GNOME, but not with 17.10 Xubuntu. Could you please clarify? 4) Does installing in the guest the package virtualbox-guest-x11 and rebooting improve the situation? ** Changed in: xorg (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/1748729 Title: Xorg freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1748729/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs