Sun Microsystems VIRTUALBOX 3.0.0 - Manual (Page 214)

13 Known limitations
– OVA archives (TAR containers) are not yet supported.
– Remote files via HTTP or other mechanisms are not yet supported.
• Host-only networking. Creation/deletion of host-only adapters are supported
for Windows hosts only presently. On other platforms, there is one fixed host-
only interface called “vboxnet0” presently. This will change in a future release.
• Vista 64-bit hosts have stability issues when using USB.
• Mac OS X host. The following restrictions apply (all of which will be resolved
in future versions):
– No support for audio input.
– The numlock emulation has not yet been implemented.
– The CPU frequency metric is not supported.
– 3D OpenGL acceleration. In general the OpenGL support for Linux guest is
experimental. This counts especially in combination with compiz enabled
window managers. Additional we are aware of the following issues:
∗ OpenGL windows aren’t updated in the Dock Icon real time preview.
∗ There are several redraw problems with compiz enabled window man-
agers on Linux guests. E.g. after save/restore state or a resize of the
guest window.
∗ OpenGL host support is not yet available on 64-bit kernels (Mac OS X
10.6).
• Linux hosts. There are a few problems when compiz is used as the host’s win-
dow manager, notably:
– seamless mode does not work well (garbled screen display if no windows
are open in the guest);
– OpenGL guest acceleration (added with 2.1) is very slow.
If you experience these problems, you way want to try using a different window
manager, such as metacity.
• Solaris hosts. For OpenSolaris and Solaris 10 U5/U6, the following restrictions
apply:
– There is no support for USB on Solaris 10 hosts. On other supported Solaris
systems (OpenSolaris and Nevada), support is experimental. USB device
filters do not work at all.
– No support for audio input.
– Only experimental USB support for OpenSolaris/Nevada hosts (versions
109 and higher recommended).
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