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T520 - No audio after resuming from sleep / hibernate mode


The T520 does not have audio after resuming from sleep / hibernate mode.


Soundcard: Conexant 20672 SmartAudio HD

Soundcard drivers version:


Ran ThinkVantage System Update and Windows update however issue still persist.


Update the audio driver to latest driver and above.

Support site

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Hormazd On 2011-06-25, 19:22 PM
Updating the Conexant Audio driver still shows the same symptoms. One out 3 resumes from standby renders no sound. A reboot is required to get it back.
dcone1 On 2014-04-11, 16:59 PM

ThinkPad T520-speakers pop then silent, no audio.  I have tried the solutions suggested.  I also verified that I have the latest audio driver.  Other suggestions appreciated.


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