I'm running Sqeeze as my test system, tried both esound and pulseaudio, but I have no sound when playing youtube videos in a rootless Iceweasel (Firefox) window.
No full Gnome or KDE desktop environment installed, so not sure if it would work with a fullscreen session.
Client: X2Go Client 3.01-18, Windows 7 Home Premium
Any ideas?
Try the 3.01-13 windows client. I also tried the 3.01-18 windows client (with built-in X-server, not vcxsrv), and sound was broken. But sound works in -13. In -18, sound was so broken that it was causing freezes when some applications tried to pay sound. So I guess -18 is now only 1 for 3 for sound -- worked for Sullivan, failed for Williams and Baur.