'flickering' sound, volume icon

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'flickering' sound, volume icon

Postby wideyes on Mon Feb 04, 2013 4:08 pm

I've never seen anything like this. Did a fresh install of x64 Nadia with Cinnamon. Everything was working fine, including sound. Was a little quiet, though, so I went to the volume icon in the tray and turned it up. Immediately, the sound went choppy, and to my surprise, the volume icon started flickering in time with it! Happens 1-2 times a second. I pulled up the audio options from the icon, and discovered that the whole audio gui seems to be doing this: the 'on/off' switch is toggling back and forth, the volume bar is jumping from 0% to whatever I set it to, multiple times a second. The problem persists after several reboots. Through my interaction with the gui sound interface, I seem to have triggered this erratic behavior - makes me wonder if it's a Cinnamon issue.

Details:
Kernel: 3.5.0-17-generic x86_64
Mobo: ASRock model: 870 Extreme3
Graphics: Card: NVIDIA G92 [GeForce 9800 GT] X.Org: 1.13.0 drivers: (unloaded: fbdev,vesa)
Audio: Card: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) driver: snd_hda_intel Sound: ALSA ver: 1.0.25

Thanks for any input.
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Re: 'flickering' sound, volume icon

Postby meteorrock on Tue Feb 05, 2013 1:39 am

Did you do an apt-get update and update your header files? I know this sounds like a canned answer but it could help you. Just in case.

Also try an apt -get upgrade if that does not help.

This might take care of the problem. Also check the settings and look through the settings for the volume and sound in those options and see if your volume imput and output are set up correctly for your sound card on your computer.
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Re: 'flickering' sound, volume icon

Postby wideyes on Tue Feb 05, 2013 6:28 pm

No, that's a good place to start. Thanks for the recommendation. I sometimes forget that the latest download on the webpage isn't always the most up-to-date. Will follow up with this and see what happens.
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Re: 'flickering' sound, volume icon

Postby wideyes on Tue Feb 05, 2013 6:52 pm

New headers and updates didn't work. However, I have through further testing discovered that it's the 'Analog Stereo Duplex' sound source having the issue. Once I switch the output to the 4.1 or 5.1 surround setting, the issue goes away. A good stopgap fix, but I'm not sure what the implications will be through a range of audio applications. I'll report back if any come up.
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Re: 'flickering' sound, volume icon

Postby TehGarnt on Mon Apr 15, 2013 8:48 am

I've just dealt with a problem like this. It turned out that the problem was caused by a faulty headset / microphone plugged into the analogue audio jacks. The problem stopped when this was changed.
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