Well, here's the comment in the upstream bug report where the developer says it's fixed: https://www.virtualbox.org/ticket/12941#comment:36
As he said, > the commit message will be: "Additions/x11/vboxvideo: properly report the > file descriptor for the kernel driver to allow authentication to work." So, looking at the github mirror (which is much more convenient than the upstream repo interface), I found that commit quite quickly: https://github.com/mdaniel/virtualbox-org-svn-vbox-trunk/commit/091213fd0b5e319918172d1f486cdf2bfffb75ff I can't test it at the moment, but I'll get back to it later and check if it's applicable to 4.3.10 source (because the commit is from 4.3.13). ** Bug watch added: Virtualbox Trac #12941 http://www.virtualbox.org/ticket/12941 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1351376 Title: 3d is not proper working inside a virtualbox guest To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1351376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs