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XP SP2, Emachines M6811.
Here's my story.
A few days ago, I lost my sound for no apparent reason. I checked the Windows Audio service, which was started. I reinstalled the Realtek audio drivers, which didn't seem to help. At some point, I started getting the Microsoft Kernel Audio things with the yellow exclamation icons showing up in the Device Manager. Two times, I tried a fix one person mentioned on another website which involved modifying the machine.inf file and installing it as a Plug and Play Software Device Enumerator, but it didn't seem to help.
After a bit of searching, I found this thread, and Atodini's post, which I'd like to try.
http://img257.imageshack.us/img257/6718/pnppropmo6.jpg
As you can see in the screenshot, there are three pnp enumerators listed in the Device manager. None of them have option to uninstall. In Properties, Uninstall is grayed out. Roll Back, Update, and Driver Details are listed as options.
In order to try the fix Atodini posted, it seems like I need to remove the pnp enumerator(s), but I'm not sure how that's done.
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I think you should uninstall the audio driver from add/remove programs and then remove the ac97 device in device manager. Then shut down immediately. Restart the computer but go immediately into bios/setup and disable the onboard sound...there might be up to 3 entries - onboard or ac97, midi and soundblaster compatibility
Reboot the machine and reinstall the via chipset drivers here
Reboot the machine a few times and then re enable the sound in bios, reinstall the sound driver and see what happens.
I have also seen sound quit under certain viruses and spyware. You should do a thorough check with http://housecall.trendmicro.com and with adaware and spybot. If you don't have a virus checker, then give www.avast.com a go as well.
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In the BIOS, there was no place to disable sound. The BIOS options were very sparse.
It was like PhoenixBIOS or something, if that helps.
When I booted up, a Multimedia Audio Controller installed itself, and is in the category of Other Devices in the Device Manager. It has the yellow error exclamation. Typical.
So, you think I should find a way to disable onboard sound before I run the Chipset Driver installer, right? I'm not sure how to manage that, since there was nothing in the BIOS about sound.
Spybot and AVG have come up with nothing. I could try running Adaware. Trend Micro is going now.
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If there is no way to shut off the sound, then you can't.
Install the chipset drivers anyway... then uninstall/remove the multimedia audio controller in other devices and without rebooting closing device manager install the ac97 drivers (on the same page).
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Update:
Sound seems to be at least somewhat working. iTunes was producing sound out of my computer speakers. Volume Controls brings up the sliders, like it ought to (instead of giving errors).
In Device Manager, there are still a bunch of unnecessary Microsoft Kernel Audio things with the exclamation marks, but whatever.
I think I'm all set now.
Thanks!
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Those you should remove by booting to safe mode and removing them from device manager. Reboot to normal mode - if the ac97 drivers installed correctly, those that are real devices will install themselves and clear the errors.
