This is one of those nasty answers. If you are running pulseaudio switching to emulation for directsound then it works. This is most likely not a bug in wine. But a bug in pulseaudio provided version of alsa interface. If you not running pulseaudio so just alsa direct problem can be wine. But due to varation in quality of alsa drivers it might be an alsa driver bug. Please not pasuspender is not what I mean by alsa direct. pasuspender does not enable dmix on cards without hardware mixing. So emulation on those cards would have to be used in case of pasuspender. The fun of hardware its all shades of grey. If it with raw alsa no pulseaudio it is a bug worth more investigation by wine to make sure its not a coding error.
