[alsa-devel] SPDIF out with HDA/Conexant 20561?

Jerone Young jerone.young at canonical.com
Wed May 5 06:14:13 CEST 2010

Are you using the Thinkpad Docking station with the S/PDIF on the side?
The headphone jack on those doesn't have S/PDIF.

I have not been able to verify this so glad your email came.. but it
seems like the T400, T500, & W500 do not actually work with it.

Did you try under Windows & if so did it work?


On Tue, 2010-05-04 at 18:19 -0500, pl bossart wrote:
> Has anyone had any luck enabling S/PDIF output with the Conexant 20561/ctx5051?
> On my Lenovo W500 I see a digital output device, I can play on it but
> I can't hear any sound on my receiver. There was a patch by Takashi
> earlier this year to correct a wrong nodeID
> (03b515c45e2a93331d2ac9dc1c16440f7fa313ec, ALSA: hda - Fix SPDIF
> output widget for Cxt5051 codec), so I figure some amount of testing
> has been done already?
> I wonder if this comes from a non-initialized pin configuration as
> reported in /proc/asound/card0/codec#0?
> Node 0x1c [Pin Complex] wcaps 0x400701: Stereo Digital
>   Pincap 0x00000010: OUT
>   Pin Default 0x40f001f0: [N/A] Other at Ext N/A
>     Conn = Unknown, Color = Unknown
>     DefAssociation = 0xf, Sequence = 0x0
>     Misc = NO_PRESENCE
>   Pin-ctls: 0x00:
>   Power states:  D0 D1 D2 D3
>   Power: setting=D0, actual=D0
>   Connection: 1
>      0x12
> Node 0x12 [Audio Output] wcaps 0x211: Stereo Digital
>   Control: name="IEC958 Playback Con Mask", index=0, device=0
>   Control: name="IEC958 Playback Pro Mask", index=0, device=0
>   Control: name="IEC958 Playback Default", index=0, device=0
>   Control: name="IEC958 Playback Switch", index=0, device=0
>   Control: name="IEC958 Default PCM Playback Switch", index=0, device=0
>   Device: name="Conexant Digital", type="SPDIF", device=1
>   Converter: stream=0, channel=0
>   Digital:
>   Digital category: 0x0
>   PCM:
>     rates [0x160]: 44100 48000 96000
>     bits [0xe]: 16 20 24
>     formats [0x5]: PCM AC3
> Thanks
> - Pierre
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