I've lost the audio on my computer. Reloaded the driver just in case it somehow got erased or disabled. Checked in the Bios to make sure all is good there. Device manager says everything is working ok. I have a Logitech 5.1 sound system and it is plugged into the motherboard audio ports. I have a ASUS Sabretooth 990FX Rev.1 mobo. I'm running two EVGA 560Ti Classified GPU's. It quit working after I performed a system restore.
Have you checked "Sound" in the Control Panel?
Something may have changed your output device settings (it happened to me a couple of weeks ago).
System Restore has an "undo" function that will undo the System Restore. Since it worked until the System Restore, the undo may take care of the sound problem (but you will have to the original problem that you did the System Restore for).
Realtek HD Audio is not listed as an option in the playback devices menu. I thought I reinstalled the drivers off the mobo driver disc. What is listed under Sound devices in the devices manager folder. There are several Nvidia HD audio devices listed and virtual wave device.
The menu lists first; Speaker, which is checked as the default device and it is named high definition audio device. Then it lists:
Headphone, high definition audio device, ready
Digital Audio S/PDIF high def audio device, ready
Digital Audio S/PDIF High def audio device, ready
That's it, no Realtek, etc..
Click the top one (default device) and do a speaker test.
Lower left corner. (Configure > test)
Tried that. Nothing. Re-installed realtek and made it default. Nothing. Very unusual. I consider my self reasonably computer savvy and this one has me stumped. Also, I can plug headphones into the front panel output on my desktop and the software recognizes that I've plugged in headphones. No sound through headphone either. According to the test, I have audio, meter moves and showns sound, just nothing from speakers or headphones. Could it be something with the motherboard? I will re check any sound related connectors on the mobo.
Try checking the settings in the program you are using to play the files.
Some programs have their own "Sound Device" output settings.
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