Left/right channels coming out of 1 speaker

Toshiba / Setellite a305-s6898 note...
August 24, 2010 at 21:36:11
Specs: Windows Vista 64 bit, 2.4ghz /4gb
For some strange reason, both the left and right channels are coming out of one speaker on any pair of headphones plugged into my laptop. The normal pair of headphones I use are USB headphones (tried using different sockets), while another 2 pairs I tried are regular jack headphones. All had the same issue. Tested the left and right speakers on all of the headphones on a different computer and there was no issue.

The only thing that has both the left and right channels correctly working are the speakers built into the laptop. The laptop I own is a toshiba satellite A305-S6898.

Help would be much appreciated. Sorry for maybe bad english.

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August 25, 2010 at 00:40:46
Are you using the Generic Sound Driver provided with Windows, or have you installed the Driver from the sound chip manufacturer/Toshiba ??

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August 25, 2010 at 05:31:56
I would guess there is a problem with the contacts in the headphone jack. Has the jack moved in relation to the case? Inserting the plug less than completely might cause that condition.

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August 25, 2010 at 14:40:16
thank you for quick responses. I am still using the generic sound driver with windows.

@othehill tried what you reccomended, works great with any other pair of headphones that don't use the USB jack. thanks very much :D

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Related Solutions

August 25, 2010 at 14:54:18
If USB sound is screwed up I would also suspect drivers. Go to the manufacturer of you laptop site and enter the service tag, model number or sometimes serial number to get the correct drivers.

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August 25, 2010 at 16:15:30
Try the USB headphones in all USB ports built into the laptop, if you haven't already.

If you still get sound on only one side....

It's likely the USB headphones have a damaged cord. Try them with another computer. If you still get sound from only one side, a broken wire inside the cable is the problem.

The headphones jack on laptops and netbooks has a mechanical switch inside of it. It's supposed to disable the sound from going to the speakers built into the laptop whenever you plug a plug (on a cord) into the headphones jack.
If you have plugged into the headphones jack a lot, it's common for that mechanical switch to malfunction. You could try plugging a plug into the headphones jack, wiggling it, then pulling it out, that may get one or both speakers working, but the only real solution is to replace the headphones jack - that's an item frequently replaced by laptop repair places.

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