Here's some tips / hints that may help along the way for those that have Hi Def sound (also skim [post=1002891]Guide to Troubleshooting Windows Audio and Sound Problems[/post])
High Definition (HD) audio connects like this
Windows <===> HD Audio Controller <===> HD Devices
The HD Audio
controller must work before your HD
devices can be detected and work (it's similar to if your USB controller wasn't working, then no USB devices could be detected or work)
Your HD controller will appear in Device Manager under
System Devices. It's the HD devices that appear under
Sound category (once the controller is working correctly)
Internal sound cards connect to the PCI bus
> The onboard and (internal) addon HD audio controller device ID starts
PCI\
> Once the controller is working, HD Devices can be detected. HD devices that connect to the controller have IDs that start
HDAUDIO\
@kobbe, your dxdiag System Device section shows
Code:
Name: High Definition Audio Controller
Device ID: PCI\VEN_1002&DEV_4383&SUBSYS_FF1E1179&REV_00\3&2411E6FE&3&A2
Driver: C:\Windows\system32\DRIVERS\hdaudbus.sys, 6.01.7601.17514 (English), 11/20/2010 03:59:29, 108544 bytes
Your HD controller is an ATI chip. It's currently using the Windows generic driver for HD controllers (
hdaudbus.sys). Which is quite common (unless ATI provides it own hardware specific driver for the chip)
I suggest you reinstall the chipset drivers for your machine next. See if that helps get the controller to work