[vbox-dev] OpenGL/3D on Mac Hosts... Screenshots

Louis King Jr inlieuoflou at gmail.com
Thu May 30 20:48:09 GMT 2013

when I use 'VirtualBox -startvm <guest's name> --rmode image' I get a
message about starting in 16 bit color mode although it does start in 32
bit color. The screenshot is still black. That's when I tried it with LMDE
- Cinnamon.

On Thu, May 30, 2013 at 3:30 PM, Sergey Dubov <Sergey.Dubov at oracle.com>wrote:

> **
> Louis King Jr <inlieuoflou at gmail.com> писал(а) в своём письме Thu, 30 May
> 2013 22:00:53 +0400:
> This has been a long standing problem with VirtualBox running on Mac
> hosts. For whatever reason screenshots on Linux guests running Compiz or
> Unity or Gnome3 or Cinnamon can not take screenshots. All one gets is an
> empty black screen. I've been told this is not an issue for the Windows or
> Linux versions of VB. As of today's 4.2.51 version it's still an issue. If
> it is one of the things being worked on currently of course ignore this
> message.
> I would mention the current version of Debian 7 with Gnome 3 does actually
> work as far as screenshots go and I have no idea why.
> Hi.
> Is it the case with QImage frame-buffer too?
> I mean by default MacOS X host VM uses Quartz2D frame-buffer but there is
> an experimental QImage frame-buffer support which can be used by trunk VM
> through '--rmode image' passed as additional argument to 'VirtualBox
> -startvm <vm name>' like:
> VirtualBox -startvm Ubuntu --rmode image
> --
> *With Best Regards,*
> *[Oracle/VirtualBox] Sergey Dubov
> *
> *
> *
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