Hi,
I've done some tests on Ubuntu and Debian stable VMs in my local network.
I do have some other issues, though. Especially when starting a flash video in Iceweasel, sound is choppy, distorted, (< buffer underruns?) the video will halt a few seconds in-play, sound will roll on for like 20 seconds, then stop, video catch up fast and once the video has reached the sound position, both video and sound playback will pick up again, but sound and picture will be desynchronized as the sound makes a 20 seconds jump into the "future".
While I'm not seeing any synchronizing errors on my local network (probably due to the increased throughput, video is also way more fluent), sound output in YouTube video streams is still not perfect. Just seems like the buffer is not filling up fast enough.
People using x2go on Windows/Linux: what is your experience with YouTube videos? Is the playback (at least audio) always smooth for you?
On the other hand, playing some MP3 file via mplayer (w/o any other application running) works flawlessly.
I can confirm this on my local network, too. Just streaming sound without any video playback is smooth and seems to work great. This also includes Flash based audio players found on the WWW.
I have noticed problems when running pavucontrol and mplayer both at the same time, though.
No problems there. Again, probably due to the increased maximum throughput compared to my ADSL line.
Best regards,
Mihai