Linked Questions

7 votes
3 answers
22k views

18.04 is slow in VirtualBox—how to make is usable? [duplicate]

I run Ubuntu in VirtualBox. 18.04 is considerably less responsive than 16.04, with exactly the same VM settings (3D acceleration, 3 cores, 4 GB RAM, guest additions installed, host: macOS, VirtualBox ...
user avatar
  • 546
1 vote
2 answers
14k views

Performance problems with 13.04 and virtualbox [duplicate]

I just installed Ubuntu 13.04 (daily, full updated) and installed Windows 8 in virtualbox. When Windows 8 is running a have huge performance issues on Ubuntu. Last week I had the same setup with ...
user avatar
  • 113
541 votes
13 answers
2.2m views

How do I install Guest Additions in a VirtualBox VM?

I've recently installed Ubuntu on Oracle's Virtualbox. Now I want to install the guest additions. I started up my Ubuntu guest OS, clicked "Devices" and chose "Install Guest Additions". Nothing ...
user avatar
  • 5,843
68 votes
2 answers
370k views

How do I enable hardware virtualization technology (VT-x) for use in Virtualbox?

So I am trying to run Ubuntu in a virtualbox but on installing 12.10 from the .iso I was greeted by a warning telling me that audio wouldn't work then I pressed next and this popped up: Failed to ...
user avatar
1 vote
1 answer
3k views

How to run Ubuntu in VirtualBox more smoothly?

How can I speed up Ubuntu in virtual box? I've allocated 2 cores, 2gb ram, 128mb vram, 3d acceleration, installed guest additions, but it's still pretty slow. Moving windows around is really choppy, ...
user avatar
1 vote
1 answer
3k views

Ubuntu installation in VirtualBox - not using base memory in RAM

I am installing Ubuntu right now under VirtualBox in Windows 7. It is going extremely slow and VirtualBox is only using about 128 MB of RAM out of the 1024 MB I set as Base memory to it. Is it ...
user avatar
  • 153
1 vote
1 answer
1k views

Enabling Unity 3D support in Ubuntu 15.10 and VirtualBox

My VirtualBox image (Ubuntu 15.10) has suddenly become very slow. I've tried the steps described in this post, but somehow Not software rendered and Unity 3D supported are still disabled after ...
user avatar
1 vote
1 answer
470 views

Running downloaded Ubuntu on VirtualBox is so very slow? What to do? [duplicate]

I downloaded VirtualBox onto my Windows 7 machine after which I successfully downloaded Ubuntu v 14, which I updated to v.15. However, I find that Ubuntu runs very very slowly and that the @ sign does ...
user avatar
1 vote
0 answers
601 views

VirtualBox VM Netflix is choppy on chrome

In Ubuntu 15.10 inside virtual box in Chrome my Netflix is choppy. I have updated everything. Any ideas.
user avatar
2 votes
0 answers
264 views

Virtualbox laggy despite having enabled hardware acceleration

I spun up an Ubuntu 16.10 instance on VirtualBox 5.1.6 within Windows 10. I've allocated it 2 GB of the host's 8 GB RAM, and 2 of 4 cores. I found Ubuntu's GUI so choppy, as to be unusable. After a ...
user avatar