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Sjohns12
Bronze

SigmaTel Audio Issue...Inspiron 1150

Greetings all,

 

I re-formatted the HD on my girlfriends laptop and while re-installing the drivers I noticed that no matter what sequence I tried to instal the SigmaTel C Major driver…it still wouldn’t work.

 

The Device manager after every install has the yellow exclamation point next to the driver.

 

I’ve uninstalled it ,cleaned the registry….reinstalled the Notebook system software and then the intel mobile chipset and then tried to install….Nothing

 

I’ve read about quite a few people with this probem and I don’t know if anyone else has gotten it fixed.

 

I ran Diagnostics this morning and the audio test came through clean….I have no idea what to do.

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15 Replies
Sjohns12
Bronze

Re: SigmaTel Audio Issue...Inspiron 1150

Also, This was a Re-Install of XP Home, Everything else on the laptop is functioning as expected, including USB drives

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Jim Coates
Diamond

Re: SigmaTel Audio Issue...Inspiron 1150

Don't just uninstall the Sigmatel driver because when you reboot it just rebuilds from the same file. You should go to the hard to the folder that was created when you unpacked the driver files and delete that folder. Then download a new copy of the driver package using the web browser and not Dell Download Manager.

 

If still getting the yellow exclamation point then right click and select to update the driver. Do not let Windows search but instead manually browse to the folder where the driver files are, then to the subfolder named WDM and point the updater at that subfolder.

Jim Coates -- 14 years on the Dell Laptop Audio boards -- since 2/6/04 

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Sjohns12
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Re: SigmaTel Audio Issue...Inspiron 1150

I've gotten to the point where every time i've  tried something new i've uninstalled...Deleted...Cleaned the registry...Each time i try something new there is no referrence to SigmaTel at all on the computer

 

I've even tried different sets of drivers...From the Dell website....Not from the dell website.

 

Do you know what file i should be looking for?  I've been manually searching for the drivers the whole time and they still don't work.

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Sjohns12
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Re: SigmaTel Audio Issue...Inspiron 1150

When i'm manually installing it's constantly asking for stac97.sys and i'm constantly pointing to it to no avail.

 

Then when i try the setup utility it says "Device Object Not present"

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Jim Coates
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Re: SigmaTel Audio Issue...Inspiron 1150

Do you know what file i should be looking for? 

The newest driver on the 1150 downloads page is a Sigmatel version 5.10.0.3952, A15. It would unpack to the hard drive at

c:\Dell\Drivers\R90698


To start the installation from that folder click on the setup.exe file.

 

There are several causes of the audio driver failing to install.

> The other drivers being installed in wrong order which you have ruled out.

> The hardware could have failed. Run the audio tests in Dell Diagnostics to check.

> Software Device Enumerator
 If you get a message like "no audio device detected" or "driver is enabled but has not been started", go into the Device Manager (Start/Control Panel/Administrative Tools/Computer Management/System Tools/Device Manager/System Devices) and check that 'Plug and Play Software Device Enumerator' is installed and running. It will be listed alphabetically if there. If it is missing then something went wrong with the recent installation of XP.

> Modem
In some models the modem can have an undetectable problem that prevents the audio from working properly. Symptoms include inability to get the audio driver to install, getting an error message saying no audio hardware present, and audio properties settings being grayed out. To test this you have to physically remove the modem, not just uninstall the driver. With the modem removed, try again to install the audio driver. If the audio works after removing the modem then you might need to replace it.

 

Jim Coates -- 14 years on the Dell Laptop Audio boards -- since 2/6/04 

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Sjohns12
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Re: SigmaTel Audio Issue...Inspiron 1150

Then it must be the Modem issue....because my Plug and play device enumerator is working fine...and as i stated in the original post the audio hardware tested out okay in the diagnostic....you really think taking a screwdriver to the modem is the best chance i got?

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Sjohns12
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Re: SigmaTel Audio Issue...Inspiron 1150

When i'm manually installing it's constantly asking for stac97.sys and i'm constantly pointing to it to no avail.

Do you know why this is? whenever i find the file and point to it it acts like it's not there when i can clearly see it.

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Jim Coates
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Re: SigmaTel Audio Issue...Inspiron 1150

"Then it must be the Modem issue....because my Plug and play device enumerator is working fine...and as i stated in the original post the audio hardware tested out okay in the diagnostic....you really think taking a screwdriver to the modem is the best chance i got?"

It was just a list of the things I know of that might cause the driver to fail to install after the obvious things have been ruled out. Removing the modem has helped out some people and didn't help others.I am sure there are other causes of a driver failing to install that I am unaware of.

I don't know the reason why a failing modem interferes with the driver installation. When it happens that can be the only symptom that it is failing. I am not a computer tech. I was told about this years ago by a tech who used to be a regular here, AussieChris. Removing the modem physically seems to be necessary only on the old models with AC97 audio.

 

Do you know why this is? whenever i find the file and point to it it acts like it's not there when i can clearly see it.

No, I do not. That is a rare symptom that I have hardly ever heard of. Usually when one gets the exclamation mark then all that is needed is to point the updater to the WDM folder which contains the stac97.sys file.

You said a couple of times that you cleaned the Registry. That is not necessary as far as I know and I wonder if that could have introduced  problems.

You said you ran audio diagnostics. That should be the audio tests in Dell Diagnostics. If it was the audio test in the  pre-boot system assessment tests the speakers can pass that test even if the Sigmatel chip has failed.

Jim Coates -- 14 years on the Dell Laptop Audio boards -- since 2/6/04 

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Sjohns12
Bronze

Re: SigmaTel Audio Issue...Inspiron 1150

Welp, looking to buy a new card now....I've seen this issue several places on the internet and have yet to see it solved successfully.

 

I wonder if the Dell Techs are aware of this.

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