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No audio from HDMI Dell Laptop (solution)

This question is answered

Just wanted to post this to help any other dell laptop owners.

What I found was that by default the sound isn't enabled to the hdmi port. And that you have to manually turn it on AMD has a article about it.

Basicly its under hardware sound device control once

 I followed that it works like a charm...

Hope this helps another Dell Studio owner

http://support.amd.com/us/kbarticles/Pages/GPU70NoAudiofromHDTV.aspx

 

No audio from HDTV when playing audio from a computer system

Last Updated
5/3/2010
Article Number
GPU-70

This article provides a guide to help get the HDTV audio operating effectively by troubleshooting various issues that can prevent the signal from working when using a direct connection to the computer’s graphics card through an HDMI cable

Table of contents
Choose the section that best matches your situation:

  • New connection between an HDTV and computer’s graphics card using a HDMI cable
  1. Unable to set the HDMI audio output as the default audio device for the computer. The audio device is not listed or disabled

    1. New direct connection between an HDTV and computer’s graphics card using a HDMI cable
    1. In order for the audio to work properly on the HDTV, the desired device must be configured as the default device within device manager of the computer. To do so:
    1. In Windows® XP:
    1. Note! Before configuring the default audio device, the following Microsoft driver should first be installed: Universal Audio Architecture (UAA) High Definition Audio class driver
    2. After installation of the UAA driver, go to Start
    3. Select Control Panel
    4. Select Sounds, Speech and Audio Devices
    5. Select Sounds and Audio Devices
    6. Click on the Audio tab
    7. In the first section labeled Sound playback, select the device that you want the audio to output from
    8. Click on OK to save your settings
  1. In Windows Vista®:
  1. Right-click the speaker icon
  2. Select Playback Devices from the options
  3. Right-click on the device that you want the audio to output from
  4. Set it as the default audio device
  5. Click on OK to save your settings
  • In Windows® 7®:
  1. Go to Start button
  2. Select Control Panel
  3. Select Hardware and Sound
  4. Select Sound
  5. Click the Playback tab
  6. Select the device that you want the audio to output from
  7. Click Set Default
  8. Click OK to save your settings

    Return to Table of Contents


    1. Unable to set the HDMI audio output as the default audio device for the computer. The audio device is not listed or disabled
    1. If unable to set the device’s HDMI audio as the default device, the HDMI input or quality of the HDMI connection may be the cause of the issue
    • The quality of an HDMI cable can reduce or prevent the audio signal from transmitting properly
    1. Connect the HDTV and computer through a direct connection
    1. The use of a HDMI adapter/dongle to connect an AGP based graphics card is not supported by the audio bus
    • Use the shortest HDMI cable length possible to allow for the highest signal tranmission quality. The maximum recommended length is 50ft
    • Use the latest HDMI cable version available to ensure compatibility for the highest output quality supported by the HDTV and graphics card. The latest version available for HDMI cables is currently 1.3c
    • Try using another HDMI cable to determine if the cable is bad
    • Some HDTV devices require that the computer be connected specifically to a PC HDMI input on the TV in order to allow the highest quality audio between the two devices
        1. If available, connect the HDMI cable to the PC HDMI input on the HDTV
        2. Check the HDTV’s manual for any settings that may need to be configured for the PC HDMI input to work properly
        3. If no specific PC HDMI port is available on the HDTV:
        1. Try connecting the computer to another HDMI input on the HDTV to determine if the input on the TV is bad
        2. Try connecting the HDTV to another HDMI input on the computer to determine if the input on the computer is bad
    • If there are other audio devices connected to the PC, a hardware/driver conflict can prevent the desired HDMI audio device from working correctly. Check the device manager to determine if there are any issues / conflicts highlighted for any listed devices
    1. Right click on My Computer
    2. Select Manage
    3. In the left navigation pane, select Device Manager
    4. Look for any notifications listed, usually marked by a yellow triangle with an exclamation mark
    5. Right click on any item that is marked, select Properties
    6. In the General tab, select the option to Troubleshoot
    7. Follow the troubleshooting steps to determine how to resolve the issue / conflict
    • The motherboard’s BIOS settings may need to be configured to allow for the desired audio device work correctly
    1. Refer to the motherboards manual or contact the manufacturer to determine the proper configuration for audio BIOS settings
    • A defective graphics card can prevent the desired HDMI audio device from working correctly
    1. Try to connect another HDMI capable device to the HDTV using the same cable and input to determine if the audio works
    2. If the audio works with an alternate HDMI device, the graphics card in the computer may be at fault. Contact the place of purchase to obtain warranty on the graphics card
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