[alsa-devel] HP 6930p mute button/led out of sync; fixed by suspend/resume cycle
tiwai at suse.de
Tue Jan 12 10:14:17 CET 2010
At Sun, 10 Jan 2010 15:34:02 +0100,
> On Sun, Jan 10, 2010 at 3:31 PM, drago01 <drago01 at gmail.com> wrote:
> > Hi,
> > I experience an odd issue with my HP6930p laptop.
> > After boot pressing the mute button/led causes the audio to be muted
> > but the sate is not reflected in software (i.e the mixer does not show
> > the control as muted).
> > However pressing after a suspend/resume cycle it works as expected.
> > The hardware mute button/led and the software control are in sync
> > (pressing the hw button toggles the mixer to mute/unmute; muting the
> > software mixer results into the led turning red).
> > This was with 18.104.22.168 and 22.214.171.124; also installing alsa-drivers from
> > source does not change this.
> > It seems something is not initialized correctly during boot up but is
> > done on resume, any pointers on how to debug this?
> (Resending to correct list)
First off, give alsa-info.sh output (run with --no-upload option) on the
very latest alsa-driver. The mute LED is usually controlled via GPIO 3
or GPIO 1 on HP machines according to the codec chip.
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