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Windows 7: No 2.1 audio channels


26 Dec 2013   #1

Windows 7 Home Premium 64bit
 
 
No 2.1 audio channels

Hello I just bought a 2.1 Logitech speakers. The problem is, there is no bass going to the subwoofer, and also there is no option to select 2.1 audio channel.

Other info.
  • Subwoofer is connected to AC
  • If I connect my phone and play a sound, the subwoofer works.
  • Realtek HD audio manager is up to date.
  • Windows 7 Home premium 64 bit.

EDIT: I just found the sound & audio thread. Sorry if this is posted in the wrong forum.
EDIT2: Thank you for moving.



Attached Thumbnails
No 2.1 audio channels-untitled.png  
My System SpecsSystem Spec
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26 Dec 2013   #2

Windows 7 ultimate 64-bit
 
 

Have you checked all the drivers for the Realtek device(s) to make sure they are up to date(yes i see you said they are but still its good to ask)
My System SpecsSystem Spec
26 Dec 2013   #3

Windows 7 Home Premium 64bit
 
 

Yes.
My System SpecsSystem Spec
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26 Dec 2013   #4

Windows 7 Pro-x64
 
 

You're missing a key component on that screen. To get 2.1 sound out of the stereo jack, you need HD Audio AND the option for Full Range Speakers. To check the driver in use, click on the "I" in the lower right corner of the window. (Just above OK)

This image shows the Full Range Speaker option. I get window-rattling bass out of my cheap 2.1 system.


Attached Thumbnails
No 2.1 audio channels-audio.jpg  
My System SpecsSystem Spec
26 Dec 2013   #5

Windows 7 Home Premium 64bit
 
 

After clicking the "Display icon in notification area" it does not do anything.

Maybe you can help me via team viewer?
My System SpecsSystem Spec
26 Dec 2013   #6

Windows 7 Pro-x64
 
 

I don't do Team Viewer. "Display icon in notification area" is not what I'm looking for. Post a snip of the Information window when you click on the I. Leave everything else alone.
My System SpecsSystem Spec
26 Dec 2013   #7

Windows 7 Home Premium 64bit
 
 

Here is a video.

no 2.1 - YouTube
My System SpecsSystem Spec
26 Dec 2013   #8

Windows 7 Pro-x64
 
 

The only thing I see is the ALC272 Codec. That supports two channel stereo which should include full range frequencies so I'm not sure why the base isn't coming through. The thing is, this must match the Chip used in your PC. Where did you get the "updated" drivers? The drivers should come only from Lenovo that match your exact PC model.

Also, please proved the complete model number for your Laptop.
My System SpecsSystem Spec
26 Dec 2013   #9

Windows 7 Home Premium 64bit
 
 

I updated the drivers from this website Realtek

and my PC model number is Lenovo b570
My System SpecsSystem Spec
26 Dec 2013   #10

Windows 7 Pro-x64
 
 

You might try downloading and installing the drivers from Lenovo Support. They may have specific INF installers for your model. The hyperlink (blue letters) is for Canada English but you can change it using the selection at the top of the page.

Click on "Drivers and Software" under the header "CHOOSE THE SUPPORT YOU NEED".
My System SpecsSystem Spec
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 No 2.1 audio channels




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