[alsa-devel] Dell N5110 HDA External Speaker is mute

Takashi Iwai tiwai at suse.de
Thu Jan 12 11:32:56 CET 2012

At Wed, 11 Jan 2012 00:56:18 +0000,
Cefn Hoile wrote:
> I'd like to report an issue experienced with the latest Oneiric, Dell
> N5110, and IDT STAC92HD87 which has been explored through quite a few
> steps already, and seems to have bottomed out to a set of
> pins/controls/flags which are not being properly managed in order to
> toggle speaker activation when a headphone is inserted.
> So far, I haven't heard sound from my speakers at all, although within
> Alsamixer, the Speaker volume is visibly toggled from 100% to MM
> (mute) on headphone insertion.
> I've tried every model against snd-hda-intel, many different other
> options, and started to explore the HDA Analyzer, which includes
> controls named like this...
> Node 0x13 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L
>   Device: name="STAC92xx Analog", type="Audio", device=0
>   Control: name="Speaker Playback Volume", index=0, device=0
>     ControlAmp: chs=3, dir=1, idx=0, ofs=63
>   Control: name="Speaker Playback Switch", index=0, device=0
>     ControlAmp: chs=3, dir=1, idx=0, ofs=0
>   Amp-Out caps: ofs=0x7f, nsteps=0x7f, stepsize=0x02, mute=1
>   Amp-Out vals: [0x7f 0x7f]
>   Converter: stream=5, channel=0
>   Power: setting=D0, actual=D0
>   Delay: 13 samples
> ...but toggling these checkboxes within the HDA Analyzer gui doesn't
> trigger any sound from the speakers either. It could be a rich
> combination of the very many checkboxes and sliders which are revealed
> by the Analyzer, but I don't really know where to start. The bug
> information downstream is here...
> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/914290
> I'd really welcome suggestions for what else to try and happy to
> invest time exploring options to try and make ALSA better still.

Could you give alsa-info.sh output for checking the mixer and register


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