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    SubjectRe: 2.6.29 regression: left audio channel broken after resume from suspend with Intel HDA
    At Fri, 24 Apr 2009 16:21:13 +0200,
    Tino Keitel wrote:
    >
    > On Fri, Apr 24, 2009 at 16:01:40 +0200, Takashi Iwai wrote:
    >
    > [...]
    >
    > > The codec communication looks a bit unstable on this device...
    > > Does this still happen on the latest 2.6.30 version?
    >
    > Yes, at least with 2.6.30-rc3. I reloaded snd-hda-intel a few times,
    > and at some point /etc/init.d/alsa-utils start complained, I guess
    > because some index numbers in the mixer changed.

    And this happens because the codec doesn't respond properly any more.
    So, something triggers to screw up the communication with the codec.
    I have no idea right now. Possibly you can bisect the changes against
    sound/pci/hda/patch_sigmatel.c...


    > Attached is an example diff.

    This diff looks OK. The difference is just the current PCM stream
    you are playing. Others are identical.


    thanks,

    Takashi


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