[pulseaudio-tickets] [Bug 71185] New: UA-101 - UA-101, playback Pulseaudio fails to detect card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71185

          Priority: medium
            Bug ID: 71185
                CC: lennart at poettering.net
          Assignee: pulseaudio-bugs at lists.freedesktop.org
           Summary: UA-101 - UA-101, playback Pulseaudio fails to detect
                    card
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: michael at michaelmess.de
          Hardware: x86 (IA32)
            Status: NEW
           Version: unspecified
         Component: alsa
           Product: PulseAudio

See also: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/986817

Edirol UA-101 card is not autodetected by PulseAudio and the driver is not
loaded.
Therefore it cannot be used using PulseAudio without manual interaction (See
workaround).
It works properly when accessed directly via ALSA.

There is a workaround to load the pulseaudio driver manually with the following
script: (I have turned the frequency selector to 192kHz.)

#!/bin/bash
echo 'load-module module-alsa-sink device_id="'$[$(cat /proc/asound/cards |grep
UA101| cut -d'[' -f1)]'" rate=192000 channels=6
channel_map=left,right,aux0,aux1,aux2,aux3' | pacmd 


The UA-101 is an USB device that has a hardware switch to select sampling
frequencies:

192000 Hz, 6 Channels
96000  Hz, 10 Channels
88200  Hz, 10 Channels
48000  Hz, 10 Channels
44100  Hz, 10 Channels

When using 192000 Hz sampling rate, only 6 channels are supported, while
otherwwise the card supports 10 channels.

Specifications: See http://www.rolandus.com/products/details/703/specs/

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