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no audio, not a single driver would fix it...


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#1 k1ngstr

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Posted 29 May 2016 - 12:42 PM

Hello everyone,

A friend of mine asked for my help since he didn't have any audio on his HP DV7 laptop. I tried several drivers but none of them worked. I came accross strange behaviors of his system too, and I'm pretty sure this is all relevant in this case.
First : they are 4 unknown devices detected in the devices manager, they all have this param : root\DTSoftBus01. I've seen that sometimes an issue is caused by Daemon Tools but he doesn't have it installed in this comp. He did have Virtual Clone Drive though, and I uninstalled it just in case. Nothing obviously happened.

Second : the audio drivers. It may be possible that the sound problem occured after an update for his geForce video card (updating HD audio in the same package).

The Device Manager state was this at that time : https://scontent-cdg2-1.xx.fbcdn.net/v/t35.0-12/13282543_1221784334507093_1203375319_o.png?oh=2371da5b15a9111e39a92cbb31821b77&oe=574CEAAC

 

Third : So I deleted all the drivers (audio and video) and unistalled the devices waiting for Windows to install drivers automatically with windows update. He actually found 2 (IDT HD Audio and Nvidia HD audio) but then I had issues with Windows Update itself (couldn't install those drivers nor install  an optional KB from september 2015 : KB3080079)

 

So I did a sfcfix, chkdsk, checksur (couldn't terminate : scanhealth ok but restorehealth never worked). Did all the steps here (http://www.thewindowsclub.com/windows-updates-fail-to-install)

 

Here are the files : https://onedrive.live.com/redir?resid=D0126AF43A5B4468!7152&authkey=!APBSL3evFe0m3E8&ithint=folder%2ctxt

 

Thanks everybody for any help ! :)

 

Cheers,

k1ngstr
 



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#2 TheTripleDeuce

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Posted 29 May 2016 - 02:02 PM

if you have his product number we can find the most recent drivers as windows update doesn't always have them



#3 k1ngstr

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Posted 29 May 2016 - 04:36 PM

hi !

We don't know the product number but we used the product identifier from hp and already installed the audio driver it recommended (IDT audio driver) but the IDT line was still yellow in the device manager :(



#4 JohnC_21

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Posted 29 May 2016 - 04:52 PM

On the IDT and Nvidia audio devices that have the yellow exclamation mark right click and select Properties. Under the Details tab select Hardware IDs in the dropdown box. Copy and Paste the first line from each device into your next post

 

Edit: Is this 32bit or 64bit Windows?


Edited by JohnC_21, 29 May 2016 - 05:03 PM.


#5 k1ngstr

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Posted 31 May 2016 - 04:34 PM

Hi !!! Thanks for the reply !

So its a 64bits OS.

IDT : HDAUDIO\FUNC_01&VEN_111D&DEV_76B2&SUBSYS_103C30F4&REV_1003
and HDAUDIO\FUNC_01&VEN_111D&DEV_76B2&SUBSYS_103C30F4
 

 

HD audio device : HDAUDIO\FUNC_01&VEN_10DE&DEV_0006&SUBSYS_10DE0101&REV_1000

and : HDAUDIO\FUNC_01&VEN_10DE&DEV_0006&SUBSYS_10DE0101
 

There's no nvidia HD audio since I desinstalled it though.

Thanks again !



#6 JohnC_21

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Posted 31 May 2016 - 04:53 PM

For the IDT driver go here and download the IDT audio driver for Windows 7

 

http://support.hp.com/us-en/drivers/selfservice/HP-Pavilion-dv7-Entertainment-Notebook-PC-series/3837623/model/3860629

 

Does this give you sound?

 

The dv7 should have a extra set of numbers/letters after dv7. Can you provide the number. It may be in the battery compartment if not on the bottom of the computer.

 

Does this computer have an Nvidia graphics chipset? Your second Hardware ID is Nvidia. Does the computer have a HDMI port?


Edited by JohnC_21, 31 May 2016 - 04:57 PM.





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