Not 16.04, because I did it a couple years back. Use another distribution that does not use Unity as UI. You can try all the stuff the other guy posted and it will be better, but not like you want it to be. It just doesn't work well in virtual box. Ubuntu Unity likes a real graphics card, not virtual stuff from vmshare or virtualbox I want to share what I figured out, and trust me it took me very long: In my experience there's no noticeable difference, but perhaps worth mentioning anyway. I've read that people get better speeds on a mechanical hard disk by using a fixed allocation virtual HDD rather than dynamic. 4GB for Ubuntu desktop seems fine for practically everything I throw at it. Don't assign more RAM than you need - ensure the host has enough left for itself. (There's not much difference between 1 and 2 in my experience, but yours may differ).ĭo the same for RAM as for CPU. If you do that, the VM guest will fight the host for resources and the result is that it will actually run slower. If you have, say, a 4-core CPU don't assign all 4 cores to the VM.

Significantly better experience at 1920 x 1080, scaled.Ĭheck CPU virtualisation settings. No matter what hardware I try, it just can't seem to power my 4K screen at its native resolution (3840 x 2160). Give it 64MB at least, and 128MB if you can.Ĭheck screen resolution.

The default settings in VirtualBox for guests are pretty low. If not, enable it in the VM options.Ĭheck you have given it enough video memory. Run /usr/lib/nux/unity_support_test -p from the terminal and note whether the last line shows Unity 3D supported: yes. Make sure Unity can use 3D acceleration - it makes a big difference.

Virtualbox windows 10 slow graphics