[Voyage-linux] Voyage MPD 0.8 problem

[Kim-man 'Punky' TSE]

Hi Patrick,

You may try to blacklist snd_cs5535audio driver.  Remember to regenerate initramfs (run update-initramfs) to make the 
change effective.

Regards,
Punky

On 12/27/2011 11:51 PM, superpat wrote:
> Hi
>
> I have installed Voyage MPD on an old  FICpc.  It runs well apart from a
> very annoying problem:-
>
> The FICpc has an internal CS5535 sound chip, which CANNOT be disabled in the
> BIOS
>
> I am using a Music Streamer II+ DAC,   and require MPD to connect to the
> DAC.
>
> On boot, the FICpc randomly  changes the order and numbering of the devices
> thus:-
>
> root at voyage:~# aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: Audio [CS5535 Audio], device 0: CS5535 Audio [CS5535 Audio]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 1: II [Music Streamer II+], device 0: USB Audio [USB Audio]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
>
> OR
>
> root at voyage:~# aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: II [Music Streamer II+], device 0: USB Audio [USB Audio]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 1: Audio [CS5535 Audio], device 0: CS5535 Audio [CS5535 Audio]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
>
> This of course screws up the MPD conf:-
>
> audio_output {
>          type            "alsa"
>          name            "My ALSA Device"
>          device          "plughw:0,0"    # optional
> #       format          "44100:16:2"    # optional
> #       mixer_device    "default"       # optional
> #       mixer_control   "PCM"           # optional
>
> This problem is known and there are lots of suggested ways to fix it in the
> ALSA wikis, using alsa-base.conf or asound.conf to control the card numbers.
>
> Unfortunately none of the suggested fixes work, the card numbers still
> randomly switch.  (I have a feeling that V3.0 kernel takes different
> parameters to those suggested in the wikis)
>
> I finally found a post from someone who appears to have had the sane issues,
> and he has a very, very, complicated method of fixing using udev rules.
>
> My question is :-  Has anyone a simple way of locking the  assigned card
> numbers at boot, on creating a mpf.conf file that will select the usb dac
> whatever its card number?
>
> Your help will be much appreciated.
>
> regards
>
> Patrick
>
-- 
Regards,
Kim-man "Punky" Tse

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