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SIGMATEL STAC 92XX C-Major HD Audio Drivers on Windows 7

I've been upgrading a few of our PCs and Laptops with Windows 7 this evening and hit upon a problem with the SIGMATEL STAC 92XX C-Major HD Audio device that came with my Dell XPS M1330 laptop. A quick google confirmed I wasn't the only one having problems.

Since I have now solved the problem I thought I'd post it here on my blog as I'm sure it will be a popular search on Google in the coming months as the masses move to the new OS.

The symptom

Following a fresh install of Windows 7 (I haven't tried an in place upgrade as I just don't trust 'em !) the OS sees the Sigmatel device and reports it to be working, but the sound just doesn't work. Any attempt to download and install the latest Vista drivers also fails to cure the issue.

The fix

Download the latest x32 or x64 (as appropriate for your computer) Vista driver from the Dell website and leave the EXE in a folder somewhere
Or get them direct from us, click for the 32 bit driver or for the 64 bit driver
Right click computer, and choose manage, then device manager
In the Sound, Video and Game controller group you will see a device called "Windows High Defintion" - delete this by selecting and pressing delete
Now having removed this device from your system you should run the Dell Sigmatel Driver EXE you downloaded previously
Your system will prompt for a restart upon install
When you restart you will get the reassuring sound of the Windows 7 start up tune and all will now be well !

Hope this helps someone, took me an hour today to figure it out.

Comments 

 
+2 # Dave Qua 2010-01-07 16:32
Very many thanks for sharing your experience. I've been struggling with this since doing a fresh install of Windows 7 on my Dell laptop. Thankfully all is now working again

Thanks again
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0 # Silent 2010-01-08 08:26
Your the man!!! Worked perfectly on my Vostro 1400!!
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0 # Amigo 2010-01-09 10:57
I tried this but it didnt work. I tried to delete the High Definition Audio Device from the Device manager and the system required restart - OK. After restart the plug and play installed the driver itself, so I did not have a possibility to force any other installation. So headphones, microphone, etc everything works apart from the laptop speakers...
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+1 # Piergiorgio 2010-01-11 15:51
Yes works!!! :-)
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0 # dave macdonald 2010-01-13 21:34
Quoting Amigo:
I tried this but it didnt work. I tried to delete the High Definition Audio Device from the Device manager and the system required restart - OK. After restart the plug and play installed the driver itself, so I did not have a possibility to force any other installation. So headphones, microphone, etc everything works apart from the laptop speakers...


I think the trick is not to restart once you have deleted the HD device. Install the Vista drivers once you have deleted it, then restart - see if that helps ?
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0 # Peter 2010-01-14 21:36
Hi!

Do you have driver (or link) for Network card too (Win7)? It's also missing :(
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+2 # Bo7amato 2010-01-20 15:05
Works fine with my DELL inspiron 1525
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+2 # hyp36rmax 2010-01-28 23:33
This worked flawlessly on a Dell Inspiron 1420 running windows 7 Ultimate 64Bit. My issue was the sound drivers were using the default windows drivers, the sound was only working on the headsets and not on the main speakers. Thank you, i appreciate this solution!
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+1 # Jorge 2010-01-30 15:01
Quoting dave macdonald:
Quoting Amigo:
I tried this but it didnt work. I tried to delete the High Definition Audio Device from the Device manager and the system required restart - OK. After restart the plug and play installed the driver itself, so I did not have a possibility to force any other installation. So headphones, microphone, etc everything works apart from the laptop speakers...


I think the trick is not to restart once you have deleted the HD device. Install the Vista drivers once you have deleted it, then restart - see if that helps ?



Yeah, you are RIGHT!!
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+1 # Tina 2010-02-03 23:26
Thank you so much for your information. Finally, i was being able to have my laptop XPS M1330 sound back normal under window 7. One more step i had to go through is disable enhancements after installed the driver. Hope this helps for others.
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0 # SimonPip 2010-02-05 21:41
Didn't work for me (Dell XPS M1530). It worked at first, but after a few days, after doing some minor changes to the microphone settings, both microphone and speakers stopped working. Despite both devices looking to be working fine, Sound Recorder reported no recording device found.
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0 # Jes 2012-01-05 11:50
Quoting SimonPip:
Didn't work for me (Dell XPS M1530). It worked at first, but after a few days, after doing some minor changes to the microphone settings, both microphone and speakers stopped working. Despite both devices looking to be working fine, Sound Recorder reported no recording device found.

I installed driver from above, but have similar problem with XPS M1530: headphones are working, but recording with line/mic jack is not working. Did you solve this?
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+1 # Allam 2010-02-12 19:26
thanks ... inspiron E1705
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+1 # cwumbs 2010-02-20 18:53
Thanks for this, after trying to solve problem myself....and failing I googled and your solution was the answer to my silent laptop

Thanks again
Cwumbs
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+2 # Soodi 2011-04-15 14:23
Thank you alooooooooooooo oooooooot
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+1 # edwin 2011-06-24 14:44
THANK FOR THIS, after trying to solve problem my self, and failing gogled and your solution was answer to my silent my computer.
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+1 # nmh12004 2011-07-22 03:57
thanks very much, it works fine with Dell XPS M1330.
I uninstalled old driver and installed the new driver and restarted. it works now.
Thanks again
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+2 # ladymiyaw 2011-07-27 11:34
yeah! This really works! Thanks man!
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+1 # texbet 2011-09-27 00:24
Thanks a million! I had upgraded my Inspiron E1505 to Windows Seven 64Bit and just the speakers and headphone jack worked. The microphone would not until I found your page and installed the 64Bit driver! Thanks!
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+1 # happy 2011-11-08 12:42
thank you very much, i have been troubled with the issue for 2 days. I went to the shop and they asked about 200 dollar and i thought of using ur way as a last resort b4 sending to the shop. and thank god it worked u saved my 200 dollar
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+1 # Sumit 2011-11-24 01:39
Hey...thanks a tonn... IDT sucks for Dell inspiron 1525..
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+1 # abhishek 2011-11-24 15:35
Good one thanks
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+1 # Andrej 2011-11-28 20:58
Thank you very much, your solution worked perfectly :)
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+1 # nejshopy 2011-11-30 15:39
thanks all ,worked:)
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0 # Kilo11 2011-12-12 21:38
When I go into my device manager I don't have a device called "Windows High Definition". I have an "Intel(R) High Definition Audio HDMI" and a "SigmaTel High Definition Audio CODEC". Is the Intel one what I ought to delete?
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0 # Kilo11 2011-12-12 21:40
Oh, and one other thing. I don't have an option to delete. Instead I can only uninstall. Will that amount to the same thing, or will I still have residual registry files if I only uninstall it?
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0 # littlecicak 2011-12-25 04:17
I did exactly stated above, but when I try to install the driver, it gives me this error.

"ExitError.Error=Device Object not present, restart the system and run setup again."

Any advice?
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0 # Terryharris800 2011-12-25 23:11
Hurrah, it worked on my Dell inspiron 1525.
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0 # TrChSpHa 2011-12-30 09:13
"ExitError.Error=Device Object not present, restart the system and run setup again."

The same happened to me. I'm running on a Dell Inspiron 1525. BOTH of my headphone jacks haven't worked for a year.

Please help?
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0 # TrChSpHa 2011-12-30 16:44
Okay, so I've got Sigmatel working on my laptop again (Dell Inspiron 1525), however, both the headphone jacks are still not working and sound comes out of the speakers even when I plug my headphones in.

Any suggestions on what I could do?
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0 # texbet 2011-12-30 19:17
Try going into "Control Panel | Hardware and Sound | Sound | Manage Audio Devices" and change your preferred "Playback" and "Recording " tabs by selecting the other device (if you have another one listed) and going back to clear the other selection. If not, roll back the driver and manually install it from Device Manager . From what I remember, the .exe file would extract the driver, then I had to manually update it to get it to work. It sometimes does not load the "microphone" component and fails to recognize a microphone input, but the speakers and headphone jacks work fine ever since I installed this driver.
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0 # Shamim 2012-01-05 08:36
Thankssssssssss ! It worksssssssssss ss........
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0 # poland kurwa 2012-01-07 01:45
jestes kurwa zajebisty :) thanks a lot man :D
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0 # Jack 2012-01-16 20:51
love you !
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0 # Sharkz 2012-01-22 13:28
does it work for pc intel window 7 /32bit ??
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