I am having a not dissimilar problem but this time with Vista.
I originally installed Vista on my desktop PC in May 2007 in order to asses the suitability to use on a day to day basis. I set up the PC as dual boot with Windows XP in another partition of the hard disk. It was working fine using Microsoft’s driver 6.0.6000.16386 until November when I noticed that all sound had disappeared from the Vista installation. (The XP installation still works correctly.)
Among some of the things I have tried to resolve the problem are:-
I followed all the steps in Microsoft’s help pages.
I removed the entry from the Device manager and restarted Vista so that it would find the device and install the driver. No luck there.
I have tried installing the latest drivers from the sound card provider, Realteck 1.87, this made no difference.
In desperation I have re-installed Vista from the installation disks, disallowing any updates from the web, and still no sound.
That last one really beat me. It used to work with the original installation back in May, yet a fresh installation and no sound and the same PC plays sound fine under Windows XP!
When I try to play something and check the sound controls, I get the green volume bar showing on the display, constantly changing, indicating sound present.
Details of my computer are:-
Operating System Windows Vista Home Premium (build 6000)
System Model Foxconn 965X7AA FAB1.2
Processor a Main Circuit Board b
2.40 gigahertz Intel Core 2 Duo
64 kilobyte primary memory cache
4096 kilobyte secondary memory cache Board: Foxconn 965X7AA FAB1.2
Serial Number: UYAF64702547
Bus Clock: 266 megahertz
BIOS: Phoenix Technologies, LTD 6.00 PG 10/23/2006
Drives Memory Modules c,d
750.16 Gigabytes Usable Hard Drive Capacity
517.26 Gigabytes Hard Drive Free Space
SONY CD-RW CRX320EE ATA Device [CD-ROM drive]
SONY DVD RW AW-G170A ATA Device [CD-ROM drive]
3.5" format removeable media [Floppy drive]
ST3250820AS [Hard drive] (250.06 GB) -- drive 1, s/n 5QF0TFKJ, rev 3.AAD, SMART Status: Healthy
VIA-P VT6205-DevB USB Device [Hard drive] -- drive 2
VIA-P VT6205-DevM USB Device [Hard drive] -- drive 3
Volume0 [Hard drive] (500.11 GB) -- drive 0 2046 Megabytes Installed Memory
Slot 'C„' has 1024 MB
Slot 'C„' has 8192 MB
Slot 'C„' has 1024 MB
Slot 'C„' has 8192 MB
Local Drive Volumes
c: (NTFS on drive 0) 64.42 GB 44.64 GB free
d: (NTFS on drive 1) 250.06 GB 95.99 GB free
e: (NTFS on drive 0) 107.38 GB 71.08 GB free
g: (NTFS on drive 0) 124.28 GB 104.61 GB free
j: (NTFS on drive 0) 204.02 GB 200.95 GB free
Network Drives
None detected
Users (mouse over user name for details) Printers
local user accounts last logon
CaptainMalcs 08/02/2008 17:05:05 (admin)
local system accounts
Administrator 02/11/2006 13:03:34 (admin)
Guest never
DISABLED Marks a disabled account; LOCKED OUT Marks a locked account
EPSON Stylus Photo 950 on LPT1:
Microsoft Office Document Image Writer Driver on Microsoft Document Imaging Writer Port:
Microsoft XPS Document Writer on XPSPort:
Controllers Display
Standard floppy disk controller
IDE Channel [Controller] (2x)
Standard Dual Channel PCI IDE Controller NVIDIA GeForce 7950 GT [Display adapter]
NEC LCD2070WNX [Monitor] (20.0"vis, s/n 6Y106011GB, November 2006)
Bus Adapters Multimedia
Adaptec AHA-2940AU PCI SCSI Controller
Intel(R) 82801HR/HH/HO SATA RAID Controller
Microsoft iSCSI Initiator
Standard Enhanced PCI to USB Host Controller (2x)
Standard Universal PCI to USB Host Controller (5x) Hauppauge WinTV PVR PCI II (26xxx)
Realtek High Definition Audio
Communications Other Devices
Sony Ericsson P990 USB Modem
isatap.{8B1BB9AB-D355-47F2-8398-373362C4D1DA}
Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller
primary Auto IP Address: 192.168.1.2 / 24
Gateway: 192.168.1.1
Dhcp Server: 192.168.1.1
Physical Address: 00:15:58:90
1:2B
Teredo Tunneling Pseudo-Interface
Networking Dns Server: 192.168.1.1
VIA OHCI Compliant IEEE 1394 Host Controller
HID Non-User Input Data Filter (2x)
HID-compliant consumer control device
HID-compliant device (4x)
Microsoft eHome Infrared Transceiver
USB Human Interface Device (2x)
UMAX Astra 610S
Built-in Infrared Device
HID Keyboard Device
Microsoft eHome MCIR 109 Keyboard
Microsoft eHome MCIR Keyboard
Microsoft eHome Remote Control Keyboard keys
Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
HID-compliant mouse (2x)
eHome Infrared Receiver (USBCIR)
Generic USB Hub
Sony Ericsson P990 Composite Device
Sony Ericsson P990 PC-Connect Controller
USB Composite Device
USB Mass Storage Device
USB Root Hub (7x)
VT6205-DevB
VT6205-DevM
Linear Mode
