I have no sound through my headphones - Dell 9400

Anonymous,
Below are the jacks for the sound card. Hopefully, it will help you get your speakers connected to the correct jack.
Realtek ALC3861 7.1 integrated audio
Gray = Middle surround out
Black = Rear surround out
Orange = Subwoofer and center out
Pink = Microphone
Green = Stereo out, Front Speakers, Headphones
Blue = Stereo in

Thank You,
Dell-Jesse L
Dell Social Media and Communities

There are two possible causes for this issue:
1) Your dell 9400 charger is malfunction
2) Your laptop dc power jack is loose or dead

Possible troubleshooting step:
1) Borrow a compatible dell charger to plug in your laptop, if it works without any issue, it means your dell inspiron 9400 adapter need to be replaced.

2) If the compatible dell 9400 charger won't work normally, the problem may lie in your dc power jack.

Hope this will help.

First, check that the audio is not muted, either via any hardware switch/button, or via software.

If not, I'd download and reinstall the sound card drivers for your notebook here:

http://www.dell.com/support/drivers/us/en/19/DriversHome/NeedProductSelection

you will need to select your model, or put in your service tag (on the bottom of your notebook) and then look for the driver under audio in the list.
from memory the first audio file should be the one you are after.
click on download, on the right hand side.

once downloaded, run and install software, then restart the computer.

Hope this info helps.

Yes It is. You can check them either in COntrol Panel > SOund or Start > Run > DXDIAG.

WIth regards
FIXYA team

Pls go to control panel \ sounds & audio devices \ check & configure from audio tab. Also see if there is any switch on the headphones volume line control etc
If this don't work then ur headphone is faulty. Well Hphones are quite cheap!

I would suggest taking this laptop to an authorized service center. Laptops are just tuff to get open and change hardware. Its more worth your time to have a service center change your hardware. Desktops I fix myself.

Check mixer on pc to ensure all levels are maxxed. Suspect moreso that plug on side of pc is bad. If this is helpful, please post as such

Sounds like your audio plug in is damaged

First try uninstalling the sound drivers from the device manager, then reboot. It will find and reinstall them, then check Dell's support site for updated sound drivers. If you find updated drivers you will need to use the update button for the device in the device manager. If this doesn't work, then it may be a faulty headphone jack. The jack should override the speakers when the headphones are plugged into it. If you can still hear the speakers with the headphones plugged in then the jack is faulty and needs replaced. If the jack does override the speakers or if you get some static then it could be that the jack has come loose or has a loose or broken wire. The only other thing is try a different set of headphones, sometimes laptops get picky and one set will work and yet another set may not.

I have a cable made of
- a 1/8" stereo plug (male) to stereo RCA (female)
- 6' stereo RCA cable (male/male)

Plug the 1/8" into the headphone jack of the laptop and the RCA end into the AUX on a stereo/amplifier...

That gives you one room anyway.