If the tool isn't available and the device shows up an unknown, inside the device properties, in the "Details" tab, you can grab the hardware id to search online and determine the driver you have to install. Sometimes, companies like Dell provide a tool that can automatically scan, detect, and install the necessary drivers. Usually part of the display adapter drivers is the driver for HDMI audio and that will show up, in Sound, Video and Game Controllers and in the Sound control panel. You wont see it separately in Device Manager. If it's unclear whether you need to install the driver, use your computer model information to find it on the manufacturer support website. The HDMI port (video portion) is just part of the Display Adapter driver. That points to a complete failure of the adapter. Select the extracted folder containing the driver update.Īfter you complete the steps, the driver will install, and the exclamation mark should disappear from Device Manager. In my post you will see that the adapter does not show up in the Device Manager.
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