No surround sound over HDMI

Posted by Chris A on Super User See other posts from Super User or by Chris A
Published on 2012-04-15T21:27:41Z Indexed on 2012/04/15 23:34 UTC
Read the original article Hit count: 227

Filed under:

drivers

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hdmi

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surround-sound

I have my Pioneer receiver hooked up to my AMD HD4600m which supports audio output over HDMI. I used to work fine, however, after a recent driver update, it will only output stereo sound. It used to output 5.1 surround sound perfectly.

Windows does not seem to recognize the device as capable of 5.1.

enter image description here

enter image description here

In the past, 5.1 was given as an option in the configuration window, like this: enter image description here

I can not get it to properly recognize the capabilities of the device. I have tried uninstalling the relevant audio device in device manager, and I have also completely removed and reinstalled the display driver.

Any suggestions would be greatly appreciated.

Thanks

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