[Bug 535622] Re: no sound after update to 2.6.31-20

[cheoppy]

I also have sound issues after upgrading to kernel 2.6.31-20. My laptop is a Lenovo Y450, with a sound card Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) (usually the hda-intel driver works with this).
If nothing is being played on the sound output, there's a constant buzz, which is very disturbing, and I have to turn off the speakers or play some music all the time. It doesn't happen when I'm using my laptop's built-in speakers. Everything is back to normal if I use the kernel 2.6.31-19, so the error should be somewhere between the two versions.

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no sound after update to 2.6.31-20
https://bugs.launchpad.net/bugs/535622
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