[USB-Audio - US122 MKII, recording] Recording problem

[Alfredo Anderson]

Can't get the US122 MKII listed as an input device.

Not in pavucontrol, nor in sound settings nor in jackd.

May be this helps,

alfredo@alfredo-ubuntu:~$ jackd -d alsa -d hw:MKII
jackdmp 1.9.12
...
Acquire audio card Audio1
creating alsa driver ... hw:MKII|hw:MKII|1024|2|48000|0|0|nomon|swmeter|-|32bit
ALSA: Cannot open PCM device alsa_pcm for capture. Falling back to playback-only mode
...

Please let me know if you need further information.

Regards, Alfredo

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alfredo 7890 F.... pulseaudio
 /dev/snd/controlC1: alfredo 7890 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 6 22:02:55 2018
InstallationDate: Installed on 2018-03-03 (187 days ago)
InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingPlaybackStderr: o p e n ( ) : N o s u c h f i l e o r d i r e c t o r y
Symptom_AlsaRecordingTest: ALSA recording test through plughw:MKII failed
Symptom_AlsaRecordingTestStderr: a r e c o r d : m a i n : 7 8 8 : a u d i o o p e n e r r o r : N o s u c h f i l e o r d i r e c t o r y
Symptom_Card: TASCAM US-122mkII - US122 MKII
Symptom_Type: None of the above
Title: [USB-Audio - US122 MKII, recording] Recording problem
UpgradeStatus: Upgraded to bionic on 2018-09-02 (4 days ago)
dmi.bios.date: 03/26/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0503
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M2N-MX SE Plus
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev x.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0503:bd03/26/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N-MXSEPlus:rvrRevx.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Alfredo Anderson (alfredoander)]

Hi guys, I managed to have this working (on lubuntu) following https://linuxmusicians.com/viewtopic.php?t=16711

In short, blacklist snd_usb_audio (and get the board listed as US-122L instead of US-122mkII)

lfredo@alfredo-pc:~$ cat /proc/asound/cards
 0 [NVidia ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xdbff8000 irq 23
 1 [US122L ]: USB US-122L - TASCAM US-122L
                      TASCAM US-122L (644:8021 if 0 at 001/002)

Then create .asoundrc file.

And finally run jackd with the following presets

jackd -RP60 -dalsa -dusb_stream:1 -r48000 -p256 -n2

Hope someone find this useful.

Regards, Alfredo