I have a Lenovo X220 with Conexant SmartAudio HD 20672. Access Drivers Windows 10 there. Sound was working fine with Windows 7 and after the upgrade to Windows 10. After one of the latest automatic Windows 10 upgrades sound stopped working altogether.
Download the latest drivers for your Conexant 20672 SmartAudio HD to keep your Computer up-to-date.
Everything checks as fine and I do not get any errors. Sounds and videos appear to play, sound levels on Sound->Playback->Speakers monitor show the bars going up and down whilst playing sound, but there is absolutely no sound coming from the speakers at all even with all the volumes maxed. I read all of the threads I could find with google on this matter (there are many!) and I learnt that also Dell and HP laptops with similar Conexant chipsets are affected. I tried all the workarounds I read about including: 1) re-installing the drivers several times 2) using different releases of the drivers up to the latest I could find for my Lenovo X220 which is 184.108.40.206 3) disabling all enhancements 4) changing the default format to all the options I could get from 16bit 44100 Hz up to 24bit 192000 Hz 5) disabling exclusive mode All the above without success.
Still NO SOUND. Please can Microsoft look into this issue and provide an update to fix this problem ASAP? Sound is essential to everyday's use and I would not want to have to re-install Windows 7. Hi, Thank you for contacting Microsoft Community. I appreciate your time and effort.
Try to make sure that the speaker is enabled by default. If not, let’s enable it and make it as the default device. You may change the default to external speaker from the Control Panel or from Notification area. Right Click on speaker icon and Select Playback devices from the notification area. A new window titled Sound should open up. 3. Right click on the blank area place a checkmark on “ Select Disabled Devices” and “ Select Disconnected Devices”. Select your speaker, Right-click on it and select enable to make sure that it is enabled.