HDMI Audio Connection Reads ' Not plugged in '

Question

Product Name: Latitude e6520

Operating System: Microsoft Windows 7 (64-bit)

Hello Dell Community,

This is my first Dell. I just bought it factory refurbished on NewEgg (1 week ago).

I tried to plug my laptop into my television using my HDMI cable last night. Video worked fine, but audio would not connect.

When I looked under control panel the HDMI audio read "Device Not plugged in" The video was working, clearly it was plugged in. It works with my brothers computer, therefor it is not the cable or the television.

I tried installing new drivers. I found the IDT 92xxx HD Audio driver on Dell's website, but I cannot install it because of the error "Sigmatel audio driver must be removed" I have uninstalled all audio drivers from the Sound,Games,etc. section on the device manager, and tried installing this new audio driver multiple times.

I'm at my wits end. I just spent $600 on a laptop, and I cannot connect it to my television. How do I fix this?

Thanks a Million,

John

Jim Coates · Answer

Hello John. Please see the 1st section of the HDMI Audio FAQ for tips on connecting a Dell laptop to tv and which drivers to install. Note that HDMI audio is controlled by the graphics driver, not the IDT audio driver.

the error "Sigmatel audio driver must be removed"

If you have this key in your Registry, remove it:

HKLM\SOFTWARE\Wow6432Node\SigmaTel

themouseran · Answer

I have an i5 chip, and I've found other posts saying there will be a driver labeled ""Audio device on high
definition audio bus", I don't have that or any graphics drivers labeled as such anywhere. I'm pretty tech savvy normally, but none of the advice I seem to find pertains to me...

themouseran · Answer

I had tried every method on that post before posting here. I have been through it all again.

I just downloaded:

Intel HD, HD 2000/2500/3000/4000 Graphics DriverIntel HD, HD 2000/2500/3000/4000 Graphics Driver

&

Intel GMA HD Graphics 2000/3000 DriverIntel GMA HD Graphics 2000/3000 Driver

Neither of which helped at all.

I've never spent this much time on an issue for any of my computers... I've also tried looking in the device manager for a "graphics card driver" section, but see none.

Can you please offer me specialized guidance? Maybe there is a specific driver I need?

Thanks a billion,

John

Jim Coates · Answer

I have an i5 chip, and I've found other posts saying there will be a driver labeled ""Audio device on high definition audio bus", I don't have that or any graphics drivers labeled as such anywhere. I'm pretty tech savvy normally, but none of the advice I seem to find pertains to me...

On your it is called Intel Display Audio -- mentioned in #2 under Preliminary Steps in the faq. Intel Display Audio is the HDMI audio sub-section of the graphics driver and is under Sound video & game controllers.

When Intel came out with the "i" cpu's, they integrated the graphics into the cpu like AMD had been doing for years. That is when the named changed from "Audio Device on High Definition Audio Bus" to "Intel Display Audio". So it is just a matter of what Intel cpu one has.

Jim Coates · Answer

I've also tried looking in the device manager for a "graphics card driver" section, but see none.

John, I am not an expert on HDMI audio. I put together the faq by collecting every single solution that had been posted that was more than just a suggestion.

On my Latitude E5420 with Intel 3000 graphics, it is under Display Adapters in Device Manager.

Other than that I don't have much to offer that is not in the faq, because everything I know about it came from those posts. Try another cable. Try another port on the tv. Right click on the Intel driver and "update" (I would let it look on the internet ).

themouseran · Answer

Thank you so much for spending the time / effort to help me.

I had updated my sound drivers before, and upon doing so again it has decided to work :]

I went to device manager. Opened up:

Sound, Video and Game controllers

High Definition Audio

Right clicked -> Updated

This only worked after updating the graphics drivers using the Dell website. Before I updated the graphics drivers, the audio driver update didn't help.

I hope this works for anyone else with the same laptop.

Warm Regards & Ten Thousand Thanks,

John

Jim Coates · Answer

High Definition Audio John, 'High Definition Audio Device' is the Windows native audio driver. You still cannot get the IDT driver to install? The native driver is okay for most purposes but if you ever need to use the microphone jack it might not work with the native driver.

Jim Coates · Answer

Hi John. I finally got around to adding your solution to the HDMI Audio FAQ. Thanks for sharing.

jimk1963 · Answer

After reviewing 10+ forum threads, came across this one that actually solved the problem for me. Lenovo T450 laptop w/ Intel 5500 integrated graphics on Win7 Pro, driving an LG 34' ultrawide monitor with HDMI. Audio playback devices included a 'WsAudio' device and Realtek for the laptop, but no audio device for the monitor itself. Other threads on this topic were flat out wrong, stating that there should not be an audio playback device with the monitor's name. Yes there should, and the way to fix this issue is as themouseran stated:  Step 1, go into Device Mgr, right click your Display Adapter and choose 'Update Driver'. This will update the graphics driver to include HDMI support. Step 2, go back into your audio Playback Devices and you will see a new entry, mine is 'LG Ultrawide, Intel(R) Display Audio'. ***! Make that the default, and you're done. Doesn't even require a reboot to make this work. Thank you to all on this thread, spent 2 hours looking for the right answer and this was it. Thanks!

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HDMI Audio Connection Reads " Not plugged in "

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