On Fri, 2021-11-05 at 11:17 +0100, Takashi Iwai wrote: > Check the contents in /proc/asound/cards. Is that empty as well? Thanks for getting back to me, Takashi. Looks like it's empty: $ sudo tree /proc/asound/ /proc/asound/ ├── Device -> card1 ├── card1 │ ├── id │ ├── pcm0p │ │ ├── info │ │ └── sub0 │ │ ├── hw_params │ │ ├── info │ │ ├── status │ │ └── sw_params │ ├── stream0 │ ├── usbbus │ ├── usbid │ └── usbmixer ├── cards ├── devices ├── hwdep ├── modules ├── oss │ ├── devices │ └── sndstat ├── pcm ├── seq │ ├── clients │ ├── drivers │ ├── queues │ └── timer ├── timers └── version 6 directories, 23 files > If the card is recognized there, check the /sys/class/sound/*. This is what I see in that directory: $ sudo tree /sys/class/sound/ /sys/class/sound/ ├── card1 -> ../../devices/platform/soc/e00000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:02.0/0000:04:00.0/usb1/1-2/1-2.1/1-2.1:1.0/sound/card1 ├── controlC1 -> ../../devices/platform/soc/e00000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:02.0/0000:04:00.0/usb1/1-2/1-2.1/1-2.1:1.0/sound/card1/controlC1 ├── pcmC1D0p -> ../../devices/platform/soc/e00000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:02.0/0000:04:00.0/usb1/1-2/1-2.1/1-2.1:1.0/sound/card1/pcmC1D0p ├── seq -> ../../devices/virtual/sound/seq └── timer -> ../../devices/virtual/sound/timer 5 directories, 0 files > If a PCM device is found there, it must be the lack of the > corresponding device in /dev/snd/* that is usually created via udev. And this is what I see there: $ sudo tree /dev/snd/ /dev/snd/ ├── by-id │ └── usb-Generic_USB2.0_Device_20130100ph0-00 -> ../controlC1 ├── by-path │ └── platform-e00000000.pcie-pci-0000:04:00.0-usb-0:2.1:1.0 -> ../controlC1 ├── controlC1 ├── pcmC1D0p ├── seq └── timer 2 directories, 6 files A bit of information on my system: $ uname -a Linux kip-unmatched 5.11.0-1021-generic #22-Ubuntu SMP Tue Sep 28 15:19:16 UTC 2021 riscv64 riscv64 riscv64 GNU/Linux $ lscpu Architecture: riscv64 Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 4 Core(s) per socket: 1 Socket(s): 1 L1d cache: 32 KiB L1i cache: 32 KiB L2 cache: 2 MiB I've also attached the output of the alsa-info(1) generated log. -- Kip Warner -- Senior Software Engineer OpenPGP signed/encrypted mail preferred https://www.thevertigo.com
upload=true&script=true&cardinfo= !!################################ !!ALSA Information Script v 0.4.65 !!################################ !!Script ran on: Fri Nov 5 18:44:49 UTC 2021 !!Linux Distribution !!------------------ Ubuntu 21.04 \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 21.04" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 21.04" HOME_URL="https://www.ubuntu.com/"; SUPPORT_URL="https://help.ubuntu.com/"; BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; UBUNTU_CODENAME=hirsute Ubuntu 21.04 (Hirsute Hippo) !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 5.11.0-1021-generic Operating System: GNU/Linux Architecture: riscv64 Processor: riscv64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.11.0-1021-generic Library version: 1.2.4 Utilities version: 1.2.4 !!Loaded ALSA modules !!------------------- snd_usb_audio !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes !!Soundcards recognised by ALSA !!----------------------------- 1 [Device ]: USB-Audio - USB2.0 Device Generic USB2.0 Device at usb-0000:04:00.0-2.1, full speed !!PCI Soundcards installed in the system !!-------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_usb_audio: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_usb_audio: index=-2 snd_usb_caiaq: index=-2 snd_usb_ua101: index=-2 snd_usb_us122l: index=-2 snd_usb_usx2y: index=-2 snd_cmipci: mpu_port=0x330 fm_port=0x388 snd_pcsp: index=-2 snd_usb_audio: index=-2 !!Loaded sound module options !!--------------------------- !!Module: snd_usb_audio autoclock : Y delayed_register : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) device_setup : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 enable : Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) ignore_ctl_error : N implicit_fb : N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N index : -2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 pid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 quirk_alias : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) skip_validation : N use_vmalloc : Y vid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x19082070, ctrlif=0, ctlerr=0 Card: Generic USB2.0 Device at usb-0000:04:00.0-2.1, full speed Unit: 2 Control: name="PCM Playback Volume", index=0 Info: id=2, control=2, cmask=0x0, channels=1, type="S16" Volume: min=-32768, max=-32513, dBmin=0, dBmax=0 Unit: 2 Control: name="PCM Playback Switch", index=0 Info: id=2, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Nov 5 11:39 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 2 Nov 5 11:39 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Nov 5 11:39 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Nov 5 11:39 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Nov 5 11:39 . drwxr-xr-x 4 root root 160 Nov 5 11:39 .. lrwxrwxrwx 1 root root 12 Nov 5 11:39 usb-Generic_USB2.0_Device_20130100ph0-00 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Nov 5 11:39 . drwxr-xr-x 4 root root 160 Nov 5 11:39 .. lrwxrwxrwx 1 root root 12 Nov 5 11:39 platform-e00000000.pcie-pci-0000:04:00.0-usb-0:2.1:1.0 -> ../controlC1 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 1: Device [USB2.0 Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card Device Card hw:1 'Device'/'Generic USB2.0 Device at usb-0000:04:00.0-2.1, full speed' Mixer name : 'USB Mixer' Components : 'USB1908:2070' Controls : 3 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 255 Mono: Playback 192 [75%] [on] !!Alsactl output !!-------------- --startcollapse-- state.Device { control.1 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 comment { access read type INTEGER count 2 range '0 - 36' } } control.2 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'PCM Playback Volume' value 192 comment { access 'read write' type INTEGER count 1 range '0 - 255' } } } --endcollapse-- !!All Loaded Modules !!------------------ async_memcpy async_pq async_raid6_recov async_tx async_xor autofs4 backlight blake2b_generic btrfs da9063_onkey da9063_regulator dm_multipath drm i2c_ocores ip_tables libcrc32c linear lm90 macb macsec mc mscc multipath nls_iso8859_1 nvme nvme_core phylink raid0 raid1 raid10 raid456 raid6_pq rtc_da9063 sch_fq_codel scsi_dh_alua scsi_dh_emc scsi_dh_rdac snd snd_hwdep snd_pcm snd_rawmidi snd_seq snd_seq_device snd_seq_midi snd_seq_midi_event snd_timer snd_usb_audio snd_usbmidi_lib soundcore uio uio_pdrv_genirq x_tables xhci_pci xhci_pci_renesas xor !!ALSA/HDA dmesg !!-------------- [ 220.902815] usb 1-2.1: 2:0: bogus dB values (-12800/-12700), disabling dB reporting [ 220.905314] usbcore: registered new interface driver snd-usb-audio !!Packages installed !!-------------------- ii alsa-tools 1.2.2-1 riscv64 Console based ALSA utilities for specific hardware ii alsa-topology-conf 1.2.4-1 all ALSA topology configuration files ii alsa-ucm-conf 1.2.4-2ubuntu1.4 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.4-1ubuntu3 riscv64 Utilities for configuring and using ALSA
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