VirtualBox

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Ticket Resolution Summary Owner Reporter
#4391 fixed Choppy/skippy/stuttering audio and video playback Sam Morris
Description

Since upgrading to VirtualBox 3.0.0, audio and video playback have become unusable with mplayer. Audio will stutter and skip constantly; video will pause for a moment and then catch up, repeatedly.

This does not happen to such a great degree with other audio/video playback programs, but all exhibit the behaviour to a noticeable degree.

My host is 64-bit Vista Home Basic and my guest is Debian using Linux versions 2.6.26 and 2.6.30.

My underlying CPU is a Core i7 920, I've tried changing the number of CPUs in the guest system from 8, to 4, to 1, but it doesn't seem to make a difference.

You may consider this a duplicate of #2580; I'm not sure since I didn't have this problem with any prior version of VirtualBox.

#4392 fixed Huge IO-APIC/guest SMP overhead with 32 bits guests rafael
Description

Symptoms are high CPU usage while running e.g. 32 bits Windows XP/2000 guests with IO-APIC enabled.

Current status:

  • fixed for AMD-V in VirtualBox 3.0.6 (requires 3.0.6 guest additions to be installed)
  • fixed for VT-x, but only if the Intel CPU supports 64 bits (leaves out Core Solo/Duo); fixed in 3.0.12 (requires 3.0.12 guest additions to be installed)
  • Solaris/OpenSolaris guests have similar issues, but a kernel fix is underway.

Does not apply to:

  • 64 bits guests
  • 32 bits Windows Vista or Windows 7
#4393 fixed Guest display shrinks too much when not in fullscreen mode Sam Morris
Description

Since upgrading to VirtualBox 3.0.0, when I leave full screen mode, the guest display shrinks to 1400x1050. In previous versions it only shrunk a little bit, as I left the VirtualBox window maximised. My monitor's resolution is 1920x1200.

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