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Solved Suddenly lost my PC sound

Dell / Inspiron 560
April 26, 2013 at 19:47:35
Specs: Windows 7, Inspiron 560 Slim-Tower
[Dell Inspiron 560 desktop; MS Windows 7 Home; Windows Live Mail Essential; MS Word Pro 2003; Mozilla Firefox 17.0.1]

My PC sound stopped working since 2 weeks ago. No error codes. Videos’ pix are okay but no sound in YouTube, or any other video type. I haven’t installed recently any programs or made any changes at all. I've also checked the volume settings and none of them are set to mute.

My speaker seems ok and properly plugged in, which I replaced with a new one thinking the speaker was wrong. I wanted to find out whether I have a sound card installed so was told to go to Start, type Volume and click on Adjust System Volume, the result: “No audio device installed”. Seems no sound card installed?

I then went to Device Manager and clicked on “Sound, Video & Game Controllers” which showed: (1) “High Definition Audio Device” and (2) “Intel® High Definition Audio HDMI”. What does this mean in terms of my missing sound?

I also see in my Task Bar that the sound icon has a red x and on hovering over it it says “No speakers or headphones are plugged in” (?).

If possible I’d like to avoid having to install a sound program, or to use the System Restore unless there’s no other way.

I anticipate my thanks for any help you can give me. :) Adela


*Went to Volume Mixer and slided the little marks up, to around 66.
*In Control Panel, I found a window titled Sound, highlighted the sound device I needed, and clicked on the “Set Default” button...but this button was greyed out(?).
*I also tried the Fix It in Troubleshooting ( and it gave this message:

“Windows Audio Playback Troubleshooter”
“There’s a problem with an unknown device. Attempts to repair failed. Contact your manufacturer for drivers and compatibility support.” it a matter of drivers? How can I fix this?

See More: Suddenly lost my PC sound

April 26, 2013 at 21:44:20
try to uninstall the hd audio devices from device manager and 7 will automatically reinstall the drivers on startup and that might fix ur problem.

also if you haven't installed the proper sound drivers for it before then goto the dell site and find the drivers for you and install it

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April 27, 2013 at 00:16:04
✔ Best Answer
If you have an HDMI cable conecting your computer to your
monitor and/or audio system, and the speakers are connected
to that HDMI-capable device, then you can use (2) “Intel® High
Definition Audio HDMI”. Otherwise use (1) “High Definition
Audio Device”.

If you have your speakers set up for HDMI, you may want to try
unplugging them from the HDMI device and plug them directly
into the audio output jack(s) on your computer, and switch to
(1) “High Definition Audio Device”.

And be sure you are plugging the main speakers into a jack
with a lime-green ring. Pink jacks are for a microphone.

-- Jeff, in Minneapolis

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April 27, 2013 at 03:23:27
THANK YOU SO MUCH JEFF!!! I (big dummy) had the plug set into....the pink jack! It's so great that you brought this to my attention because, not being well versed with computer tech, I wouldn't have been able to go through the complicated troubleshooting. However, I'll keep your kind advice in case I need it in the future. Thanks again! :o)

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April 27, 2013 at 03:27:27
Hello and thank you masterofnocrack! It was a really DUMB error on my part! Thank you for helping! :o)

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April 27, 2013 at 09:09:06
I know about the pink and lime green of course because I
occasionally forget which is which and plug my earphones
into the pink jack on the front of my computer, because the
colors are hard to see and the jacks aren't marked in any
other way.

Maybe I should print little headphone and microphone icons
on a sticky label and put it beside the front jacks, similar to
the labels by the jacks on the back of the computer.

-- Jeff, in Minneapolis

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April 27, 2013 at 09:22:18
LOL! Yes it's difficult to see. Not a bad idea to stick little labels... :o) Adela

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