3

I have Creative Sound Blaster Live 24-bit sound card and 5.1 surround speakers.

Front & rear left, center speakers are working but no sound from right speakers (both front and rear). There is no hardware problem and they work in Windows 7.

How can I solve this problem?

Edit: In pavucontrol, it's seen that system sound is mono. I think that this is the reason of my problem but how can this be solved?

pavucontrol

  • Did you look at the other tabs? Like Output devices? And try showing other devices with the dropdown. – Volker Siegel Aug 11 '14 at 18:48
  • Note that for more recent versions of ubuntu there may currently be a bug out there: bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1672822 (click this also affects me if you think you are affected after reading trough, you may also add in your own details). – Thijser Mar 15 '17 at 15:39
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Install the pavucontrol program like this:

sudo apt-get install pavucontrol

or reinstall pavucontrol. Worked for me.

  • I don't how this worked but it worked – Parto Dec 10 '17 at 15:00
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Had the same problem and fixed it in a strange way.

Go to alsamixer (just type alsamixer in terminal)

Make sure your sound card is the one selected by pressing F6 which will show you a list for the available sound cards. Select yours! ...If you're not sure try them all. It's not dangerous ;)

alsamixer

...I noticed that I had many volume bars having their right part lower than their left part. (in this picture you see only one). So I just lowered all their volumes to zero and back up again and they became even. (to "navigate" just use your arrow keys. Right and left to select the bar, up and down to lower/raise the volume).

Hope it's your case too!

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I faced the same problem but found that it was due to the sound card.

When I had Windows & my Yamaha card did not work at all I bought Creative SB 5.1 which worked when the software was downloaded and installed.

When I switched over to Linux only the left speaker worked. I switched back to the Yamaha Sound card and everything was fine without any effort. So the sound card is likely to be the culprit.

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