[NOTE: Apologies for the paste, but for some reason the answer got
deleted from askubuntu (This post is hidden. It was deleted 12 hours ago
by fossfreedom♦. ...so much for "freedom" ; ) If someone can tell me
why, I would appreciate it. I gave the answer (Rodecaster appears not to
be supported) and showed a lot of debugging effort leading to that
conclusion.]
I have the same issue... I tried many things, but could not get the
Rodecaster working. I did learn quite a bit and got the Scarlett 2i2
working though.
- lsusb
Bus 001 Device 002: ID 19f7:0011 RODE Microphones RODECaster Pro
- ls -al /dev/snd/by-id/
lrwxrwxrwx 1 root root 12 May 6 11:44
usb-RODE_Microphones_RODECaster_Pro_00000000001A-01 -> ../controlC2
- cat /proc/asound/cards
2 [Pro ]: USB-Audio - RODECaster Pro
RODE Microphones RODECaster Pro at usb-0000:01:00.0-3, high speed
- cat /proc/asound/modules
0 snd_usb_audio
1 snd_hda_intel
- lsmod | grep snd_usb_audio looks OK
- arecord --list-devices does not show it
- aplay -L shows usbstream:CARD=Generic HD-Audio Generic USB Stream
Output and a lot of other (normal motherboard) devices but nothing with Rode
and nothing else USB
- aplay --device=usbstream
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for
card
aplay: main:828: audio open error: Invalid argument
- cat /proc/asound/pcm does not show it
- editing /etc/modprobe.d/alsa-base.conf to add these two lines at the end:
options snd-usb-audio index=0
options snd-hda-intel index=1 ...but no change after a reboot. Idea from
https://unix.stackexchange.com/questions/220224/alsa-not-detecting-my-soundcard
- editing /etc/modprobe.d/alsa-base.conf to add options snd
slots=snd-usb-audio,snd-hda-intel did not change anything either
- blacklisting snd_hda_intel in /etc/modprobe.d/blacklist-sound.conf by
adding blacklist snd_hda_intel to that file (create it if necessary) and
rebooting disabled it, but did not help with the USB sound for the Rodecaster
- pulseaudio -k && sudo alsa force-reload after the changes (instead of a
reboot) doesn't change anything either. Note: pulseaudio restarts itself and
does not need to be manually restarted (Is there another way to restart the
sound system if pulseaudio/ALSA don't work?)
The Answer (as it appears to me at least):
- The Rodecaster is recognized as a USB device, but somehow not recognized by
Alsa
- I grabbed a Scarlett 2i2 gen3
(https://wiki.linuxaudio.org/wiki/hardware_support)
- edited /etc/modprobe.d/alsa-base.conf to comment out #options snd-usb-audio
index=-2 to allow snd-usb-audio to be the first device
- edited /etc/modprobe.d/alsa-base.conf to add options snd
slots=snd-usb-audio,snd-hda-intel at the end to have the USB audio before the
HDA Intel
- pulseaudio -k && sudo alsa force-reload to reload the alsa config
Then the Scarlett showed up. Leaving the HDA Intel first did not let the
Scarlett show up.
Helpful info:
- https://www.alsa-project.org/main/index.php/Help_To_Debug ...the
alsa-info.sh looks like a fairly complete alsa debugging info summary generator
- https://wiki.ubuntu.com/DebuggingSoundProblems
- bug filed:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1877726
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Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1877726
Title:
[HDA-Intel - HD-Audio Generic, playback] USB sound with Rodecaster Pro
not working
Status in alsa-driver package in Ubuntu:
New
Bug description:
Please see
https://askubuntu.com/questions/1229085/ubuntu-with-rodecaster-pro-usb-soundcard/1236257#1236257
for most background.
tl;dr:
- The Rodecaster Pro is a USB audio standard compliant device
- lsusb sees it, but alsa cannot use it
- trying the exact same setup with a Scarlett 2i2 USB device works (with some
caveats, see the mentioned post)
Somehow the Rodecaster is ignored by Alsa. I am more than happy to help debug.
Alsa info is at
http://alsa-project.org/db/?f=94fd609fa23912ab0a39b67676a026fd163f3f3b and also
attached.
nils@blackbox:~/tmp/soundtest$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Generic_1 [HD-Audio Generic], device 0: ALC887-VD Analog [ALC887-VD
Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic_1 [HD-Audio Generic], device 1: ALC887-VD Digital [ALC887-VD
Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: USB [Scarlett 2i2 USB], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
nils@blackbox:~/tmp/soundtest$ arecord --list-devices
**** List of CAPTURE Hardware Devices ****
card 0: Generic_1 [HD-Audio Generic], device 0: ALC887-VD Analog [ALC887-VD
Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic_1 [HD-Audio Generic], device 2: ALC887-VD Alt Analog
[ALC887-VD Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: USB [Scarlett 2i2 USB], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: nils 90077 F.... pulseaudio
/dev/snd/controlC0: nils 90077 F.... pulseaudio
/dev/snd/controlC1: nils 90077 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Sat May 9 11:45:20 2020
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-08-23 (1354 days ago)
InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AudioUsers: pulse
Symptom_Card: Family 17h (Models 10h-1fh) HD Audio Controller - HD-Audio
Generic
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: nils 90077 F.... pulseaudio
/dev/snd/controlC0: nils 90077 F.... pulseaudio
/dev/snd/controlC1: nils 90077 F.... pulseaudio
Symptom_Jack: SPDIF Out, Internal
Symptom_Type: Sound works for some users but not for others
Title: [HDA-Intel - HD-Audio Generic, playback] sound not working for all
users
UpgradeStatus: Upgraded to focal on 2020-05-09 (0 days ago)
dmi.bios.date: 10/14/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5222
dmi.board.asset.tag: Default string
dmi.board.name: PRIME A320M-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr5222:bd10/14/2019:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEA320M-A:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2020-05-09T11:23:29.080704
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