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  • Posts: 2
  • Registered: ‎06-16-2015
  • Location: India
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  • Message 1 of 3

Dolby Digital Plus not working

2016-05-21, 14:06 PM

I hve been using a Z 50-70 for the past one and a half years and Dolby digital was working fine. I reinstalled it after the windows 10 upgrade and it worked well for a few months but has now suddenly stopped working. The application starts and I can turn it on and even switch modes form movie to music and others but nothing happens and the sound remains the same. Please help!

Thank you in advance.


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  • Posts: 1
  • Registered: ‎06-04-2016
  • Location: Malaysia
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  • Message 2 of 3

Re: Dolby Digital Plus not working

2016-06-04, 8:35 AM

I have this problem too and solved it by:

Uninstalled the Conexant SmartAudio HD and reboot laptop. 

Go to Device Manager > sound, video and game controllers > Conexant SmartAudio HD, right click on it and uninstalled it. System will request for reboot. See if this helps. 


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  • Posts: 71
  • Registered: ‎04-23-2016
  • Location: India
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  • Message 3 of 3

Re: Dolby Digital Plus not working

2016-06-04, 14:48 PM

Hello there,


Its a common issue usually happens when the audio device was updated by windows(bad idea)... Just follow my steps completely & then you will get your dolby settings back,thrust me


1.Disable internet connection..

2.Go to Control panel->System->Advanced system settings(on left side)->Hardware->Device installation settings->Select no->Apply,Ok..

3.Go to Control panel->Device manager->Sound,video & game controllers->Right click on Conexant smart audio HD->Uninstall->Tick delete driver software for device->Ok then reboot..

4.Download the audio driver here..

5.Intall the downloaded driver & then reboot..

6.You can now enable Internet connection(the reason i said you to disable internet connection because windows will attempt to download incompatibe driver & intall & thats your problem now)...Do the steps fully


Report back




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