[zutamui]

Hi,
I turned on my computer a couple of days ago and I found that my volume wasn't working. Instead, there was a red x next ot my speker on my taskbar, and when I moused over it it said, "No Audio Output Deivce is installed". I went over to device manager and checked under "Sound, Video, and Game Controllers" and my audio driver was completely missing! No yellow question mark next to it, nothing at all. So I go to the HP website to download the driver and I can't install it, instead I get this error message saying "Driver Installation Failed: Could not find the device for this driver." I've emailed HP support about this and although they were trying to be helpful, I got nowhere with them. I even tried a full system restore, and the problem still persists. Help, I'm stumped!

[DerekC]

HP lists multiple versions of the DV6700 on their website. I don't suppose you know which driver it was you tried to install?

Presuming that you are using Vista, try this driver.
http://h10025.www1.hp.com/ewfrf/wc/s...roduct=3636595

[flavallee]

What's the exact model number and/or part number of your HP Pavilion? It should be on a sticker on the case.

In the Device Manager, is there a heading named Other Devices or Unknown Devices? If there is, what's listed in it?

It helps to mention which version of Windows that you're using.

If it does have Realtek High Definition Audio and you're using Windows Vista, the driver file likely needs to be run twice and the computer restarted each time. The first run uninstalls the old driver and the second run installs the new driver.

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[zutamui]

My part number is kr346av and yes, I'm using vista.

When I booted up this laptop this morning to check on this thread the sound was working perfectly! I downloaded and installed the driver DerekC gave me and it said I needed a reboot.

I restarted the computer, but it went back to the problem.

I looked under device manager and there is no Other Devices or Unkown Devices. The sound driver is gone, and when it worked that one time the driver was back. What is going on?!

Also, I remember my laptop fell off of the couch onto the floor the other day. I don't think that's high enough to do any damage, but could it be a hardware problem and I would need a repair?

[flavallee]

That part number is to a HP Pavilion dv6700z CTO Entertainment Notebook PC.

There are 2 audio drivers listed for Vista for that computer:

Realtek High Definition Audio, driver version: 6.0.1.5548

Conexant High Definition Audio, driver version: 4.36.7.60

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[zutamui]

Yes, my computer is a HP Pavilion dv6700z CTO Entertainment Notebook PC.

It came with the Conexant High Definition Audio driver.
Now I can't reinstall any of the two drivers because it gives the error "Driver Installation Failed: Could not find the device for this driver."

[DerekC]

If the sound was working properly, then there was no need to install the driver that I linked to.

When working properly, there shouldn't be any other or unknown catagories in device manager. I would try the system restore.

Programs > Accessories > System Tools > System restore. See if there is a restore point just before you installed the driver I provided.

[jakesteez]

im havin the same problem just happened today, the onscreen quicktouch display also quit workin and shuts itself down when i turn the machine on, ive also got a 6700

[zutamui]

Derek, I tried doing a system restore before and it didn't solve anything. My audio driver is gone and I can't reinstall it. I did some research on the internet and people have been saying that the hp pavilion dv6700 is known to have motherboard issues, and that repairs don't really help it. Time for a new computer....