Audio Driver issues after Windows 10 Anniversary Update

[mredski]

After upgrading the OS to Windows (10.0.14393), Conexant driver failed. No Device Installed. Also in Device Manager, Intel High Definition Audio is missing a driver. Can't find a copy (bundeled with another driver...video maybe).

Anyway, fixed the Conexant driver problem by totally uninstalling the Conexant ISST Audio application and re-installing.

My only problem now is that audio does not go out to a HDTV plugged into the HDMI port. Video goes well, but no sound. HDMI does not show in Audio Devices as well.

Any ideas? HDMI port tied to the Intel High Definition Audio device?

The Device ID's for the Intel HD Audio device are:

INTELAUDIO\FUNC_01&VEN_8086&DEV_2809&SUBSYS_80860101&REV_1000
INTELAUDIO\FUNC_01&VEN_8086&DEV_2809&SUBSYS_80860101

Thanks

Ed ski

[Paul_Tikkanen · Accepted solution]

Hi:

Yes, that is the Intel HD audio device that needs the Intel graphics driver reinstalled.

I suggest this option to install the driver since sometimes simply reinstalling the Intel graphics driver doesn't work.

Download and install this free file utility.  The 2nd file on the list is for 64 bit.

http://www.7-zip.org/

After you install 7-Zip, download and save, but do not run this Intel graphics driver from your notebook's support page.

This package provides the Intel video drivers, control panel and display audio driver for supported notebook models running a supported operating system.

ftp://ftp.hp.com/pub/softpaq/sp75501-76000/sp75984.exe

After you download the graphics driver file, right click on it and select 7-zip from the list.

Have 7-Zip Extract to:  and let it extract the file into its folder name (sp75984).

When that is done, go to the device manager and click on the problem Intel HDMI audio device needing the driver.

Click on the driver tab.

Click on Update Driver.

Select the Browse my computer for driver software option, and browse to the driver folder 7-Zip created.

Make sure the Include Subfolders box is checked and the driver should install.

Then restart the PC, and you should be able to get both audio and video from the HDMI connection.

[mredski]

This worked for me.

Thanks for the help.

Ed.

[Paul_Tikkanen]

You're very welcome.

[SoMeOn3]

It Didnt Work 😞

[tayyabparia]

Hey can you tell me you reinstalled the conexant isst app. 

[angryllama]

You may have to first uninstall and delete the drivers for the following 2 devices in Device Manager:

Sound, video and game controllers > Conexant ISST Audio

Sound, video and game controllers > Intel(R) Display Audio

THEN install the latest Conexant audio drivers and Intel video drivers posted on HP's website for your particular model.

This fix worked for all of our EliteBook 840 G3 units.

[Bliz]

This worked for me also on an SCCM built HP x2 1012 G2. Win10 Anniversary 1702. Thanks.