No sound after Windows 7 Upgrade from XP, Gateway 7200x

[stuckinxp]

Gateway 7200x desktop. 32-bit. No separate sound card. Motherboard = Intel D915GSE AAC778480192. The left, right, and subwoofer speakers all connect to the PC via a single cord at the single small RCA like Green hole at the back of the desktop. After the upgrade to Win7 there's no sound. Device Manager reports no problem with the sound and shows High Definition Audio Device on two lines labeled Location 0 and Location 2, both with drivers from Microsoft 2009 and 2010. Click on "Update Drivers" is no help. Uninstall drivers and reboot only restores the same Microsoft drivers. Gateway provided no backup CD with drivers. The Gateway "Restore" CD has no files that I can identify as being an audio driver, and I suspect if I could find them they wouldn't work with Win 7. Gateway's website now is useless for support of PCs that aren't current. Intel's website shows no Vista or Win 7 drivers for the 915GSE. Msinfo shows PNP device HDAUDIO/FUNC_01&VEN_1002&DEV_AA01&SUBSYS_00AA0100&REV_1002\5&3359D18B&0&0001 and shows Drivers as c:\windows\system32\drivers\hdaudio.sys (6.1.4701.17514) and c:\windows\system32\drivers\hdaudio.sys (6.1.7601.17514).But Device Manager reports one of the drivers as 6.1.7600.16285. The little speakers are turned on and wired to the PC. ANY HELP TO A SOLUTION MUCH APPRECIATED.

 

[smorizio]

http://www.realtek.com.tw/downloads/downloadsCheck.aspx?Langid=1&PNid=14&PFid=24&Level=4&Conn=3&DownTypeID=3&GetDown=false
try download the newest realteck audio driver. most motherboards use one of there chipsets for sound.
also make sure you install the newest intel chipset drivers. sometimes not having the motherboard chipset drivers installed cause issues with other devices on the mb. also look under windows sound control panel. with nvidia and amd video cards now installing hdmi audio drivers a lot of time with hdmi monitors this gets set as the default audio device and not the realteck audio speakers. also look under windows sound control to see if windows mutted the output on you.

 

[stuckinxp]

smorizio: SOLVED! Many thanks for your recommendations. Although my monitor probably has HDMI capability, it’s connected with an old VGA cable, and yet Control Panel-Sound reports the High Definition Audio Device as “Digital Audio (HDMI) Not plugged in.” I have no HDMI audio setup.
The taskbar confirms that Win 7 has not muted the sound output. It’s at 100%.
I followed your URL to realtek.com and downloaded from “High Definition Audio Codecs” the “32bits Vista, Windows7, Windows8, Windows8.1 Driver only (Executable file)”, version R2.73, 11/11/13, 97.9 MB.
Then I created a Restore Point and System Image, and finally ran the executable. It installed without a problem. After the reboot, I opened the sound control on the taskbar – it reported an error, but after about 15 seconds, when I slid the slider I heard a tone from the speakers. First time since the Win7 upgrade I’ve had sound. In Device Manager under Sound …, I see two entries. 1) High Definition Audio Device (as before) and 2) Realtek High Definition Audio. I disabled the first and still have regular sound from .mp3 files, etc. In Task Manager Processes it shows RtHDVCpl.exe RealTek HD Audio Manager is running. Everything appears to be fine. Again, many thanks for sharing your expertise.
from: stuckinxp