Volume randomly going up and down

So, no-one has had this issue ? No thoughts or ideas ?

Anyone ????

Hi Bill,

I will be glad to help you. Request you to try following the below steps:

(1) You may use the below link and update BIOS:

http://dell.to/12ZQsnR  

(2) Try connecting the speakers on a different system and check if it works normally.

(3) Also you may try connecting a headphone and check if sound works.

Do reply with your answers.

Kiran, I have tried to install the newer bios version, but the install won't proceed because I get a message saying the system was unable to detect my old version ? What am I doing wrong ?

Hi BillNH,

Request you to check if the system service tag showing in BIOS (F2 at startup) and the tag on the bottom of the computer is the same. Also let me know the BIOS version mentioned there. You may try connecting an external speakers and headphones and check if it works. I will then check and see what can be done.

I looked in MSInfo32 and it says my bios version is "Dell Computer Corporation A04 10/21/2010

Hi Bill,

I would be able to help you only if you answer the below questions:

(1) If the system service tag matches in BIOS.

(2) You may try connecting an external speaker and headphones to check if it works.

Do reply with your answers.

Kiran,

I looked in F2 upon reboot and the listed service tag is the same tag as the sticker on the back of my PC tower, so yes they are identical. Any thoughts as to why it won't let me upgrade to the newer bios version ?

Hi Bill,

Thank you for following the steps mentioned by me so far. Request you try connecting an external speaker and headphones and check if it works. Only then I can check and see what needs to be done.

I have the same problem. My laptop is Dell Inspiron 5420.  It happen three days ago and it's not happen before then.  I have checked it with earphone, the sound is still the same, up and down randomly.  I think, there was a problem with the sound card, but i haven't check it.  Hope you can help me.  (FYI : I haven't do the step that you gave to Bill) I need this help ASAP

And when i restart the laptop, it's not happening.  but when i start rapidly changing the music for my drama performance its happen again. so i have to restart it always. can you help me?

hi

I have a DELL XPS 15 9550 and the volume icon appears on the screen randomly and goes up and down.  My BIOS is updated as per Support Assistant.

What is causing this bug ?

Hi guys,

I work as a senior support analyst and I am passing thru the same thing here. The analyst before me has contacted Dell Pro Support and they ended up replacing the motherboard even though it was stated that volume sliding up  problem. The result: the problem persisted even with a new motherboard and a new Windows 7 image. So there is no software (virus, malware, windows) problem. It is hardware. More specifically, the volume up button that is like pressed either in its physically or electronic contact since in this model Latitude E7240, the volume button are apart of the keyboard.

I recently had a similar problem after beginning to use a new headset. Volume would randomly go up and down.  The message box that comes up with plugging an audio device into the audio jack allows for selection of headset/headphones.  I stopped the problem by selecting headphones.  The random nature of the volume control activity reminded me of a floating CMOS input on digital logic.  (Subject to the whims of the electronic charge in the vicinity).  I suspect that the method used to control the up/down volume control on some headset (Like Apple earbuds have +/- on the Microphone) are not present on some headsets, causing the input to float.  I would like to know the equivalent circuit/method used/design requirements to perform the volume controls using the headset input.  The selection box that appears when using an external audio device (headset/headphones) should allow the user to select/deselect external volume control input.