Hi,
I’m trying to plug my Motu 8A DAC to do multichannel with Roon but it is not working with Ropieee (it works under Mac and Windows).
It is detected in Roon but when I hit play no sound is played.
I’ve created a report under ID d3c5d13099ab8d20 and attached my alsa-info.txt.
The only error seen is in RAAT log:
05/29 22:49:14 Error: [RAAT::8A] error in failed to snd_pcm_hw_params_set_channels exactly. trying to set max channels instead: Invalid argument (-22)
I’m stuck 
Any help appreciated.
alsa-info.txt:
upload=true&script=true&cardinfo=
!!################################
!!ALSA Information Script v 0.4.65
!!################################
!!Script ran on: Fri May 29 20:41:50 UTC 2020
!!Linux Distribution
!!------------------
Arch Linux \r (\l) NAME=“Arch Linux ARM” ID=archarm ID_LIKE=arch PRETTY_NAME=“Arch Linux ARM” HOME_URL=“http://archlinuxarm.org/” SUPPORT_URL=“https://archlinuxarm.org/forum” BUG_REPORT_URL=“https://github.com/archlinuxarm/PKGBUILDs/issues”
!!DMI Information
!!---------------
Manufacturer:
Product Name:
Product Version:
Firmware Version:
Board Vendor:
Board Name:
!!ACPI Device Status Information
!!---------------
!!Kernel Information
!!------------------
Kernel release: 4.19.118-1-SPCKFSH-v7l
Operating System: GNU/Linux
Architecture: armv7l
Processor: unknown
SMP Enabled: Yes
!!ALSA Version
!!------------
Driver version: k4.19.118-1-SPCKFSH-v7l
Library version: 1.2.2
Utilities version: 1.1.6
!!Loaded ALSA modules
!!-------------------
snd_usb_audio
!!Sound Servers on this system
!!----------------------------
Jack:
Installed - Yes (/usr/bin/jackd)
Running - No
!!Soundcards recognised by ALSA
!!-----------------------------
0 [D8A ]: USB-Audio - 8A
MOTU 8A at usb-0000:01:00.0-1, super speed
!!PCI Soundcards installed in the system
!!--------------------------------------
!!Loaded sound module options
!!---------------------------
!!Module: snd_usb_audio
autoclock : Y
device_setup : 0,0,0,0,0,0,0,0
enable : Y,Y,Y,Y,Y,Y,Y,Y
id : (null),(null),(null),(null),(null),(null),(null),(null)
ignore_ctl_error : N
index : -1,-1,-1,-1,-1,-1,-1,-1
pid : -1,-1,-1,-1,-1,-1,-1,-1
quirk_alias : (null),(null),(null),(null),(null),(null),(null),(null)
use_vmalloc : Y
vid : -1,-1,-1,-1,-1,-1,-1,-1
!!USB Mixer information
!!---------------------
–startcollapse–
USB Mixer: usb_id=0x07fd0005, ctrlif=0, ctlerr=0
Card: MOTU 8A at usb-0000:01:00.0-1, super speed
Unit: 1
Control: name=“Clock Source 1 Validity”, index=0
Info: id=1, control=2, cmask=0x0, channels=1, type=“BOOLEAN”
Volume: min=0, max=1, dBmin=0, dBmax=0
–endcollapse–
!!ALSA Device nodes
!!-----------------
crw-rw---- 1 root audio 116, 0 Aug 17 2019 /dev/snd/controlC0
crw-rw---- 1 root audio 116, 24 Aug 17 2019 /dev/snd/pcmC0D0c
crw-rw---- 1 root audio 116, 16 Aug 17 2019 /dev/snd/pcmC0D0p
crw-rw---- 1 root audio 116, 1 Aug 17 2019 /dev/snd/seq
crw-rw---- 1 root audio 116, 33 Aug 17 2019 /dev/snd/timer
/dev/snd/by-id:
total 0
drwxr-xr-x 2 root root 60 Aug 17 2019 .
drwxr-xr-x 4 root root 180 Aug 17 2019 …
lrwxrwxrwx 1 root root 12 Aug 17 2019 usb-MOTU_8A_0001f2fffe0086e6-00 -> …/controlC0
/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 60 Aug 17 2019 .
drwxr-xr-x 4 root root 180 Aug 17 2019 …
lrwxrwxrwx 1 root root 12 Aug 17 2019 platform-fd500000.pcie-pci-0000:01:00.0-usb-0:1:1.0 -> …/controlC0
!!ALSA configuration files
!!------------------------
!!System wide config file (/etc/asound.conf)
pcm.!default {
type hw
card 0
device 0
}
ctl.!default {
type hw
card 0
}
!!Aplay/Arecord output
!!--------------------
APLAY
**** List of PLAYBACK Hardware Devices ****
card 0: D8A [8A], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
ARECORD
**** List of CAPTURE Hardware Devices ****
card 0: D8A [8A], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
!!Amixer output
!!-------------
!!-------Mixer controls for card D8A
Card hw:0 ‘D8A’/‘MOTU 8A at usb-0000:01:00.0-1, super speed’
Mixer name : ‘USB Mixer’
Components : ‘USB07fd:0005’
Controls : 2
Simple ctrls : 0
!!Alsactl output
!!--------------
–startcollapse–
state.D8A {
control.1 {
iface CARD
name ‘Clock Source 1 Validity’
value true
comment {
access read
type BOOLEAN
count 1
}
}
control.2 {
iface CARD
name ‘Keep Interface’
value false
comment {
access ‘read write’
type BOOLEAN
count 1
}
}
}
–endcollapse–
!!All Loaded Modules
!!------------------
cfg80211
hwmon
ip_tables
ipv6
raspberrypi_hwmon
rfkill
rpivid_mem
sch_fq_codel
snd
snd_hwdep
snd_pcm
snd_rawmidi
snd_seq_device
snd_timer
snd_usb_audio
snd_usbmidi_lib
uio
uio_pdrv_genirq
x_tables
!!ALSA/HDA dmesg
!!--------------
[ 3.298110] bcmgenet fd580000.genet: configuring instance for external RGMII (no delay)
[ 3.345334] usbcore: registered new interface driver snd-usb-audio
[ 4.072926] random: crng init done