I have an issue with my iMac 27" (2009) and Windows 7 x64 with BootCamp: There is no audio output from the internal speakers of my iMac.
The following steps/installations/configurations has been done already, but did not work:
- Installed Boot Camp 3.3
- Latest Windows 7 Updates and ServicePacks
- Tried to install latest Realtek drivers (some threads recommend this)
- Tried to install latest Cirrus drivers (some threads recommend this also)
- Tried to deactivate/uninstall Windows High Definition Audio-Device (and yes, some threads recommend this)
One more thing: when I connect an USB headset audio will be routed to the headset correctly.
Thus I assume that in general audio should work, but there is something wrong with the audio routing.
Any advice and help is very welcome.