Call for Testers: VirtualBox 4.1.0

[Bernhard Fröhlich]

On Sa., 13. Aug. 2011 06:41:45 CEST, Yuri <yuri at rawbw.com> wrote:

> On 08/07/2011 16:55, Yuri wrote:
> > I ran Ubuntu 32bit and Ubuntu64 bit guests as test. Ran system updates 
> > there.
> > 
> > Troubling change: when guest is under heavy load 
> > downloading/installing updates, it causes the internet radio 
> > disruption playing as the 'mplayer' host process. It sounds exactly 
> > like the needle skipping through the vinyl record tracks. (short 
> > interruptions of the digital signal) This never happened before, with 
> > or without the older VBox versions. Just in case this is useful, my 
> > sound card driver is snd_es137x.ko.
> > 
> > Also behavior of this old bug http://www.virtualbox.org/ticket/6314 
> > changed. First time I tried, it said that it failed to start the 
> > machine with the error "No error". The second time it actually worked 
> > (!) and my old long dead Windows guest is alive again. It worked the 
> > third and the fourth times too. I guess it is fixed now, maybe with a 
> > possible caveat. But Windows guest also causes the above mentioned 
> > troubling sound effect.
> 
> My guess is that 4.1.0 kernel module became heavier on CPU and this 
> impacts sound. I keep seeing this. This is probably general vbox bug, 
> not FreeBSD port one.
> 
> Could you also publish port directory for 4.1.0 virtualbox-ose?
> 
> I ran Android-2.2. It runs ok, but no sound. The reason is that VBox 
> only has OSS option enabled (probably because your build has 
> --disable-pulse) and Android only supports ALSA and PulseAudio (through 

The ports are available in a tar.gz archive and you find the link to it in the cft mail at the bottom.

I have also seen some audio jitter with Windows guests and 4.0.x but only with the default audio implementation. The problem was gone by switching to Intel HDA.