Screen Captures and 3D acceleration

Discussions about using Linux guests in VirtualBox.
Post Reply
loukingjr
Volunteer
Posts: 8851
Joined: 30. Apr 2009, 09:45
Primary OS: Mac OS X other
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: just about all that run

Screen Captures and 3D acceleration

Post by loukingjr »

I've just noticed since I have made a few of my Linux guests look pretty that "Take Screenshot" or any other method of trying to capture the screen comes up black as long as 3D acceleration is checked in the guest. Is there a fix for this that I've missed or is it just the nature of virtualization? I run Ubuntu natively and it works there.

thanks
OSX, Linux and Windows Hosts & Guests
There are three groups of people. Those that can count and those that can't.
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: Screen Captures and 3D acceleration

Post by Perryg »

Seems to be the way it is with 3D and Compiz and the like. Screen overlay does not capture.
loukingjr
Volunteer
Posts: 8851
Joined: 30. Apr 2009, 09:45
Primary OS: Mac OS X other
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: just about all that run

Re: Screen Captures and 3D acceleration

Post by loukingjr »

what I discovered since my post was, for some reason the new Linux Mint Debian does get captured. must be an ubuntu based distro problem.
OSX, Linux and Windows Hosts & Guests
There are three groups of people. Those that can count and those that can't.
Sasquatch
Volunteer
Posts: 17798
Joined: 17. Mar 2008, 13:41
Primary OS: Debian other
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Windows XP, Windows 7, Linux
Location: /dev/random

Re: Screen Captures and 3D acceleration

Post by Sasquatch »

I don't think it's limited to Ubuntu. As long as you have 3D enabled and USE it in the VM, you won't get a proper screenshot. This means that if you use Compiz on Mint or Debian, you get the same result.
Read the Forum Posting Guide before opening a topic.
VirtualBox FAQ: Check this before asking questions.
Online User Manual: A must read if you want to know what we're talking about.
Howto: Install Linux Guest Additions
Howto: Use Shared Folders on Linux Guest
See the Tutorials and FAQ section at the top of the Forum for more guides.
Try searching the forums first with Google and add the site filter for this forum.
E.g. install guest additions site:forums.virtualbox.org

Retired from this Forum since OSSO introduction.
loukingjr
Volunteer
Posts: 8851
Joined: 30. Apr 2009, 09:45
Primary OS: Mac OS X other
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: just about all that run

Re: Screen Captures and 3D acceleration

Post by loukingjr »

Sasquatch wrote:I don't think it's limited to Ubuntu. As long as you have 3D enabled and USE it in the VM, you won't get a proper screenshot. This means that if you use Compiz on Mint or Debian, you get the same result.
Well, here's a link to a screenshot of taking a screenshot inside Linux Mint Debian, and it is running in 3d mode with Compiz...

as you can see, "take screenshot"'s window is not blank or black

http://picasaweb.google.com/lh/photo/Vz ... directlink
OSX, Linux and Windows Hosts & Guests
There are three groups of people. Those that can count and those that can't.
bobbinsfrodsham
Posts: 1
Joined: 30. Sep 2010, 19:27
Primary OS: MS Windows 7
VBox Version: OSE other
Guest OSses: Ubuntu Linux

Re: Screen Captures and 3D acceleration

Post by bobbinsfrodsham »

Hi, i just wanted to note that this also solved the problem that I was having with RDP to the Ubuntu guest showing as a blank screen.

Regards
Post Reply