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Sound is not working on Dell Latitude E6400



Problem or Question:

Audio/Sound produces errors and does not work on Dell Latitude E6400, E5400, E4200 series laptops


Dell Latitude

Solution or Answer:

The IDT 92HDxxx HD Audio drivers from Dell have a bug. Need to uninstall the "IDT High Definition Audio CODEC" in Device Manager

1. Start => Control Panel => Device Manager

Note: Make sure to use Icon view [upper right]

2. Find and click the arrow next to "Sound, video and game controller"

3. Check to see if culprit device is listed "IDT High Definition Audio CODEC" as well as "High Definition Audio Device" 


4. Right Click on "IDT High Definition Audio CODEC"

5. Select "Uninstall"

6. Make sure there is a check in the box next to "Delete the driver software for this device."

7. Click OK

8. Restart Computer



Bad Audio Driver

Article Details

Last Updated
08th April 2014 01:57:40 pm

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