HP Pavilion dv6426us no sound

[starbright]

I went to Control Panel, Sounds and Audio Devices and it says "No Audio Device" and everything is unclickable. I then went to Device Manager and there's all of these yellow question marks in the category Other Devices with a question mark by Audio Device on High Definition Audio Bus, Modem Device on High Definition Audio Bus, SM Bus Controller, and Unknown Device. What does this all mean? I just bought this computer used and I don't know much about computer specs. Any help would be greatly appreciated!

[Daniel_Potyrala]

Hi,

You need some drivers for You hardware. Below You've got something which You need. Download them and install.

SM Bus Controller

Intel 945GM chipset here (Install it first with reboot)

MS-UAA for SP2 (required with a reboot before Audio and Modem) here

MS-UAA for SP3 (required with a reboot before Audio and Modem) here

Audio Device on High Definition Audio Bus:

Conexant High-Definition SmartAudio 221 here

Unzip to a folder..use Device Manager,right click "Audio Device on HD",choose Update driver,
No to connect,
Install from a list or specific location,
Select Don't Search, I will choose the driver to install,
For the Hardware Type select 'Show All Devices'
Remove the check from "Show Compatible Hardware" and click on "Have Disk".
Next...browse to the unzipped folder and choose the "WiSVHe5.inf".
Ignore XP when it complains.
Reboot.

Modem Device on High Definition Audio Bus

Conexant HDAUDIO Soft Data Fax Modem with SmartCP Driver here

Go to Control Panel -> System -> Hardware -> Devices Manager

Click with right button of Your mouse on each yellow sign and choose properties. Then go to bottom details and paste here device id. This way we will know what it is.

Below You've got example how to do it:

Message Edited by Daniel_Potyrala on 08-06-2009 04:31 AM

[starbright]

OK so I tried all this and it completely screwed up my screen dimensions. It got really big and every word became blurry. And the sound didn't come on, only some annoying "beep" sound whenever I inappropriately click on something. So, I had to do a system restore point. Thankfully, my screen is back to normal size. Everytime I would download those drivers a message would come up saying "The software you are installing for this hardware: ___________ has not passed Windows Logo teting to verify its compatibility with Windows XP. Continuing your installion of this software may impair or destabilize the correct operation of your system either immediately or in the future. Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing."

And the other problems that occured was that when I went to Device Manager and under the category Display adapters a yellow exclamation popped up next to Mobile Intel(R)945GM Express Chipset Family. And under Other devices there is still a yellow question mark beside that and underneath that the SM Bus Controller and Unknown Device had yellow question marks.

But now I am back to where I started... Could it be that my problem lies with the system being in Windows XP and not Windows Vista?

Message Edited by starbright on 08-05-2009 07:21 PM

[Daniel_Potyrala]

Now drivers are for XP. Yes I thought then You need them for Vista, because You wrote then You just bought this model.

[starbright]

I bought it from a guy used. He said he redid the computer completely but I guess he didn't have the drivers for the sound. He changed it so it is now Windows XP.