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Very interesting problem. Volume keeps turning itself all the way down!


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7 replies to this topic

#1 dontknowitall

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Posted 03 May 2012 - 01:01 PM

**update: The issue is goes away when ONLY running on battery (ac adapter unplugged).

Hey guys,

I have an HP Pavilion DV7 laptop... The volume slider keeps turning itself all the way down, even as I try to turn it up. Its been happening for a while now. I've tried:

1.) Completely removed everything attached to the MOBO, only the LCD, DC Jack, RAM and HDD. Issue still persists
2.) Same as above only added battery, and unplugged the ac adapter and ran off battery. Issue is resolved.
3.)Plug power back in the issue happens again.
I tried many combinations of removing and adding hardware components and they all have the same result.
4.) I update the drivers, then uninstalled and download new drivers. Installed the software and disabled the software. The issue persists
5.) Tried updating windows and then disabling the sound software along with HP Smart software. Issue persists.
6.) installed a new HDD and clean installed windows 7 with only the provided drivers. Issue persists
7.) Replaced the Sound/Smart Media Power panel. Issue Persists
8.) Changed the RAM. Issue persists.
9.) Disabled the sound devices in the "Sound" control panel. Issue Persists.
10.) Flash the BIOS, already has the newest revision so I re-flashed it. Issue Persists.
11.) Tried switching AC Adapters. issue persists
12.) Changed DC Jack & AC Charger.
Can't think of anything else it could be! Anyone have any ideas? thanks!

Edited by dontknowitall, 03 May 2012 - 02:48 PM.


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#2 Allan

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Posted 03 May 2012 - 01:15 PM

Does this happen at boot or during the session? Do you have the current audio driver installed for your sound card?

You can try a selective startup to make sure that it's not something loading at boot: Open msconfig and on the General tab choose "selective startup" (uncheck all three items) and reboot. Does the problem still occur? If not, start adding items back to msconfig one or two at a time, rebooting after each change, until the problem reappears and you'll have identified the offending process. This is clearly a time consuming procedure, but it is the best way to determine if some process loading with the system is the cause of your problem.
After you've isolated the cause, do not use msconfig to permanently disable the process. Instead, if it is a service go to START - RUN and type: services.msc (then press enter) and disable the service OR, if it a program, you can download & run a simple app such as Mike Lin's Startup Control Panel (http://www.mlin.net/StartupCPL.shtml) to enable, disable, or otherwise manage startup programs.

#3 dontknowitall

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Posted 03 May 2012 - 01:30 PM

Thanks, but we have tried that. Sorry I didn't list it.

***UPDATE: The issue goes away when ONLY running on battery (ac adapter unplugged).

Edited by dontknowitall, 03 May 2012 - 01:38 PM.


#4 noknojon

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Posted 04 May 2012 - 03:18 AM

Hi mike -
Any change yet ? ?
Please post a snapshot with Speccy
Publish a Snapshot using Speccy =<< Directions

Thanks -

#5 Allan

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Posted 04 May 2012 - 07:01 AM

Also, please stop "updating" your first post. It only makes things confusing. If you have something to add please do it by creating a new post in this thread. Thank you.

#6 noknojon

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Posted 04 May 2012 - 07:48 AM

Also, please stop "updating" your first post. It only makes things confusing. If you have something to add please do it by creating a new post in this thread.

@ Allan -
The poster may be confused as they are running at least 2 forum posts on the same topic-
Link to other post http://hardforum.com/showpost.php?p=1038683244&postcount=1

Edited by noknojon, 04 May 2012 - 07:49 AM.


#7 Allan

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Posted 04 May 2012 - 08:03 AM

Even better :)

#8 dontknowitall

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Posted 04 May 2012 - 11:35 AM

http://speccy.piriform.com/results/QwNXptzp230X6VhKHBhZ73w




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