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The computer says no audio output device is installed

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Hi Sehajpg,

Did the sound used to work? Did you recently format the hard drive? any idea when the problem started?

there are many things that can go wrong but in the end this particular problem always is about the computer detecting the hardware (the sound card) and the installing of the drivers once the sound card is detected. You can find out a little bit of information by going to:

start menu>control panel>system(if you cant see "system" switch to classic view on the left)>hardware>device manager

I know its a lot of menus but once your there the device manager will tell everything about the innards of your pc. It will also tell you (with a big yellow question mark) what items its having a problem with.

Please go there and see if there is a question mark next to anything so we can get your sound working.

Posted on Nov 12, 2008

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11_23_2011_1_32_29_am.jpg

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11_23_2011_1_33_43_am.jpg
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** If the Sound Controller is NOT installed properly you need to download the Audio drivers from the support site of your Dell computer, http://support.dell.com , be sure to select the correct model of your laptop and operating system of your computer. Once you have downloaded and installed the drivers, Audio should work fine not unless it is the hardware itself that is damaged.
**Also don't forget to check if there are other external audio output devices connected to your computer, please do test if working properly.
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3 Answers

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Well it is possible that the audio driver installed is not the one compatible with you computer board. Try downloading the specific driver needed for your computer's official website. This should solve your problem.

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The audio circuit in your computer consists of:
1) the audio circuit which is integrated into your motherboard
2) the speakers

If it's a hardware issue then these are the possible culprits. It might also be a software issue such as audio drivers corrupted or audio device not set-up correctly.

Try booting from your "Resource CD" (it's a CD that has Diagnostics listed under contents) and see if the audio works. If so then it's not a hardware issue but software or setup issue.

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if you want something more complicated..the map of the out-put (the scheme) will be shown in the sound manager (of teh driver ) ..when you make the output changes..This is on a color code..and can be 2+1...3+1..4+1..and the surround 5+1..when you choose surround 5+1 from the sound manager ..it is shown all 3 outputs and the role they play ..bass+center ...Front ...and rear ..they are 2by 2 stereo paired on left and right ..

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Hi there.
Look at the back of the computer and look for the S/N and the MD/LT numbers and please post back so i can source the audio driver for you.

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http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=2093&lc=en&dlc=en&cc=us&lang=en&product=3686671

The driver you want is labeled: "Realtek High Definition Audio Driver Update"

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To immediately fix these errors in Vista, start the Windows Audio service as follows:
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  2. From the list of services, right-click Windows Audio and select Start . Figure 23: Starting the Windows Audio service c00847914.gif
  3. The message should no longer open. If the message opens again after the computer is restarted, repeat these steps, select Properties for Windows Audio and set Startup Type to Automatic.
If you have XP on the computer, then click Start-->Run and then type "services.msc" in the Run window and then click OK and once you get the Windows Services screen, follow the above steps.
If this doesnt work and the sound card is not onboard or integrated, then reseat the sound card preferably into a different slot and repeat the above steps.

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