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    SubjectRe: Problems with snd-hda-intel on hp 6930p (2.6.30)
    On Tuesday 30 June 2009, Takashi Iwai wrote:
    > At Mon, 29 Jun 2009 20:37:09 +0200,
    > Rafael J. Wysocki wrote:
    > >
    > > Hi Takashi,
    > >
    > > I have a problem with snd-hda-intel from 2.6.30 on an hp EliteBook 6930p, which
    > > is that the sound is not audible, although everything appears to work just
    > > fine. Except maybe that when the box is rebooted and KDE (3.5) is started,
    > > the master control is "muted" and the led indicator next to the keyboard shows
    > > "no sound". Then, changing the "muted" status of the master control doesn't
    > > change the state of the led indicator and vice versa (the two things appear to
    > > be totally independent of each other).
    > >
    > > Can you please tell me what I can do to debug this issue?
    > Could you run with --no-upload option on both "muted"
    > and "not muted" states, and attach the generated files?

    Sure. In the meantime it turned out that after a power off and cold boot the
    status of the master control is 'on', but the led indicator shows 'no sound', so
    there are 5 outputs:
    * alsa-info-postboot.txt - after power off and cold boot
    * alsa-info-led.txt - led indicator switched to 'on' when it was in the
    alsa-info-postboot.txt state
    Now I switched to AC power and rebooted the box without powering off:
    * alsa-info-muted.txt - initial state with the 'muted' master control
    * alsa-info-on.txt - master control switched to 'on' when it was in the
    alsa-info-muted.txt state
    * alsa-info.txt - led indicator switched to 'on' when it was in the
    alsa-info-on.txt state

    > If it's a regression (heh :), please give output on
    > older kernels.

    No, it's not a regression. At least not from 2.6.27.

    Please let me know if you need more information.

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