T420 headphone jack no sound

New problem here.
1. recently updated all drivers and such through lenovo updates and drivers after replacing laptop screen.
now headphone jack no longer works. could be just coincidence. Sound continues to port through speakers, and I can't find any diagnostic to help me see if the audio card "sees" the headphones.
yes, the headphones have been tested elsewhere.
your suggestions appreciated.

It depends since the jack is usually 4 pin (for sound and mic). Its possible that the connections don't line up correctly. Try some other head phone or 3.5mm stereo device. If you've used it before and it worked with it maybe something is in there or its damaged. Its not possible to trouble should those possibilities.
T520 Model 4239 Intel(R) Core(TM) i7-2860QM CPU @ 2.50GHz
Intel Sandy Bridge & Nvidia NVS 4200M graphics Intel N 6300 Wi-Fi adapter
Windows 7 Home Prem - 64bit w/8GB DDR3

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T420 Headphone Jack won't work in Windows 7

Hi all,
I've recently got a T420 4180A32 (Conexant CX20672) and the headphone jack doesn't work under Windows 7. It works when I boot (natively) into Ubuntu, but obviously when I run a Virtual Machine into Ubuntu through Windows, it doesn't work either.
I have:
- Uninstalled and reinstalled the driver version that came installed.
- Installed, Uninstalled and reinstalled a newer driver version.
- Uninstalled the old driver and installed the new one.
- Reverted to using the generic High Definition Audio driver. The speakers work fine but again, headphone jack doesn't.
- Established that it obviously isn't a hardware problem.
- Uninstalled then reinstalled DirectX
- Tried various headphones on the off chance that they were the problem. They weren't.
I haven't:
- Done a full reinstall of windows 7 (although I might)
- Tried Windows 8, although again, I might as I have an unused licence for it and I really want my headphones to work.
That's about all the info I can give. Besides this problem, the laptop runs great!
Any help would be appreciated.
Thanks

I have now noticed that when using ubuntu the headphones work but that won't mute the speakers, so I am starting to think it could actually be the jack, as the headphones, as a device, arent dectected by ubuntu either, they just work because they are plugged in, I guess it's the way each OS works.
Check if that happens in your computer as well. Also, where did you check the prices of compatible sound cards? Which should I buy? I may go to a Lenovo store to get it fixed.

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i just got my macbook pro unibody, and first time i insert headphone in the jack the little piece of the head phone gets stuck in the jack. what should i do ? Does the warranty cover that kind of stuff( cause i think they should) or is there a solution? anything, please help!!

I had the same problem. I tried tweezers, glue and neither worked. If you can, bring it into the Apple Store.
Otherwise, a cheap fix so you can use headphones/earbuds:
I bought a USB to headphone jack adapter and it worked well. This is the one I got:
Syba SD-CM-UAUD USB Stereo Audio Adapter
http://www.amazon.com/gp/product/B001MSS6CS/ref=oh_details_o01_s00_i00?ie=UTF8&p sc=1
I'm sure many other similar adapters would work too.
It didn't require any device drivers, it was plug and play.
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Headphone Jack no sound when plugged in ?

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emeres wrote: Do you look for something like this?
I am not sure. I had a look at the code (I dont know Perl, though), and it seems that, in the end, all it does is issuing
pacmd set-default-sink x
However, when I do this manually, it doesnt switch the sound to the other sink.
emeres wrote: I would check if udev recognizes that headphones are plugged in/out (udevadm monitor), create a rule and a script setting the default output via pacmd. Or create a systemd service, or your own script periodically checking the status.
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D: [pulseaudio] module-switch-on-port-available.c: finding port analog-output-headphones
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Windows 7 x64 - headphone jack no sound

has anyone gotten the sound to work out of the headphone jack?
i got audio and microphone working by installing the latest Cirrus Logic driver - CS4206A (AB99), i think it's the latest, i got it from Cirrus website and it's the last one on the list, i assume "99" is the latest since it's the highest numbered.
the drivers on 3.0 and 3.1 update don't work.
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same here no sound in windows 7 And linux
Message was edited by: Revenage

Greetings Community: I have a problem with my headphone jack: no sound. The problem is not with the headphones... the jack just does not transmit any sound... any ideas how to fix this? It seems to be a rather strange problem. Thanks for your help.

Any ideas on how to fix a problem with a headphone jack on my
desktop power Mac (mid 2007). I don't have a clue on this one.
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Hi Paul,
...on my desktop power Mac (mid 2007)
Are you sure you don't have a Mac Pro? The last of the PowerMac desktops were discontinued in August 2006.
What does "About this Mac" (in the Apple menu) say about the processor type?

Headphone Jack - No Sound after unplugging

Hi I have a weird problem. If my kids plug headphones in and then unplug them I have no sound from the internal speakers. I have to plug the heaphones in and pull them back out 2 times to get the internal speakers working again. It is a new 20" iMAC.

Hello cmdrunix
There is a micro switch built into the jack that tells the audio system to go from internal to external. At some point in time it may and probably will completely fail, the only solution is to take it in for service.
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Satellite P305D-S8995E
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I changed them on varius settings and nothign happened. Any other ideas? Thanks

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Hi
When I remove or put the headphones jack, the sound stops to work in the speakers and in the headphones. To turn it back, I have to close the player(music, video or sound streamer from the web site) and start it again, but if the headphones is pluged in it works very well, if I remove the jack stop again, it happens in reverse case.
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Notebook info
IDT High Definition Audio CODEC
Genuine Windows 7 Home Premium 64-Bit SP1
Intel(R) Core(TM) i5-2410M
6GB system memory
Thanks
Roberto
This question was solved.
View Solution.

I had the same problem with dm4-2070us and I just finished chatting with HP customer service. The representative asked me to do few things including setting the BIOS to default. I also reinstalled the driver. NOTHING WROKED.
He told me to do a complete revovery of the system to factory reset. I didn't want to go that route.
What I did is downloaded the older driver for dm4-1162us and installed on my dm4-2070 and it fixed the problem. Now the only thing I'm missing is the Dolby sound, about which I don't care that much.
Hope this help you also.
Conclusion: It's a software problem. May HP come uo with a new driver to fix it, SOON.
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When useing av cable to a projector, I want the sound to come out headphone jack.

I am using the av cable to connect the video out to a projector and the headphone jack to speackers.
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Hey everyone,
I have a Mid 2012 MBP. Just updated to OS X 10.10 and used the headphone jack to connect my external speakers for the first time today. Had no problems t first, but after about 2 hours of using the headphone jack the sound started cutting in and out then about 10 minutes later, they just stopped working all together. Audio works just fine with out them plugged in. Also the sound is cutting in and out using the built in speakers also.
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Reset the PRAM:
http://support.apple.com/kb/PH14222?viewlocale=en_US
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Ciao.

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No, not forceful - gentle.
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Sounds like the headphone port is damaged. Some USB audio solutions exist for the Mac. You may want to research those over trying to fix the soundboard.

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There is something wrong with my headphone jack. the sound skips in and out in even increments when im using headphones but through the normal speakers sound is fine. theres nothing wrong with my headphones. does anybody know what is wrong with it?

It may be dirty ...try blowing into the jack or better yet use a form of compressed air for electronic equipment. You could also try wetting the tip of your headphone jack with WD-40 (or a similar electronic contact cleaner) then wiggling that around to see if things clear up.

T420 headphone jack no sound

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