!!################################ !!ALSA Information Script v 0.4.65 !!################################ !!Script ran on: Tue Jul 28 04:47:20 UTC 2020 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 4.19.118-v7l Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.19.118-v7l Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 snd_usb_audio snd_bcm2835 snd_usb_audio !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [b1 ]: bcm2835_hdmi - bcm2835 HDMI 1 bcm2835 HDMI 1 1 [Device ]: USB-Audio - USB PnP Audio Device USB PnP Audio Device at usb-0000:01:00.0-1.1, full speed 2 [Headphones ]: bcm2835_headphonbcm2835 Headphones - bcm2835 Headphones bcm2835 Headphones 3 [Webcam ]: USB-Audio - C922 Pro Stream Webcam C922 Pro Stream Webcam at usb-0000:01:00.0-1.3, high 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_bcm2835: enable_compat_alsa=0 snd_bcm2835: enable_hdmi=1 snd_bcm2835: enable_headphones=1 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!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 : -2,-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 !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!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 : -2,-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=0x0c76161e, ctrlif=0, ctlerr=0 Card: USB PnP Audio Device at usb-0000:01:00.0-1.1, full speed Unit: 50 Control: name="Mic Capture Volume", index=0 Info: id=50, control=2, cmask=0x0, channels=1, type="S16" Volume: min=0, max=7936, dBmin=0, dBmax=3100 Unit: 50 Control: name="Mic Capture Switch", index=0 Info: id=50, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 USB Mixer: usb_id=0x046d085c, ctrlif=2, ctlerr=0 Card: C922 Pro Stream Webcam at usb-0000:01:00.0-1.3, high speed Unit: 5 Control: name="Mic Capture Volume", index=0 Info: id=5, control=2, cmask=0x0, channels=1, type="S16" Volume: min=5120, max=12800, dBmin=2000, dBmax=5000 Unit: 5 Control: name="Mic Capture Switch", index=0 Info: id=5, 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, 0 Jul 27 13:16 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Jul 27 13:16 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 64 Jul 27 13:16 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 96 Jul 27 13:20 /dev/snd/controlC3 crw-rw---- 1 root audio 116, 16 Jul 27 13:16 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 56 Jul 27 13:16 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 80 Jul 27 13:16 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 120 Jul 27 13:20 /dev/snd/pcmC3D0c crw-rw---- 1 root audio 116, 1 Jul 27 13:16 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jul 27 13:16 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 80 Jul 27 13:20 . drwxr-xr-x 4 root root 280 Jul 27 13:20 .. lrwxrwxrwx 1 root root 12 Jul 27 13:20 usb-046d_C922_Pro_Stream_Webcam_0DE98A9F-02 -> ../controlC3 lrwxrwxrwx 1 root root 12 Jul 27 13:16 usb-0c76_USB_PnP_Audio_Device-00 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Jul 27 13:20 . drwxr-xr-x 4 root root 280 Jul 27 13:20 .. lrwxrwxrwx 1 root root 12 Jul 27 13:16 platform-fd500000.pcie-pci-0000:01:00.0-usb-0:1.1:1.0 -> ../controlC1 lrwxrwxrwx 1 root root 12 Jul 27 13:20 platform-fd500000.pcie-pci-0000:01:00.0-usb-0:1.3:1.2 -> ../controlC3 lrwxrwxrwx 1 root root 12 Jul 27 13:16 platform-soc:audio -> ../controlC2 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1] Subdevices: 4/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 card 2: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones] Subdevices: 4/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 ARECORD **** List of CAPTURE Hardware Devices **** card 1: Device [USB PnP Audio Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 card 3: Webcam [C922 Pro Stream Webcam], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card b1 Card hw:0 'b1'/'bcm2835 HDMI 1' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'HDMI',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback 0 [96%] [0.00dB] [on] !!-------Mixer controls for card Device Card hw:1 'Device'/'USB PnP Audio Device at usb-0000:01:00.0-1.1, full speed' Mixer name : 'USB Mixer' Components : 'USB0c76:161e' Controls : 4 Simple ctrls : 1 Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 496 Mono: Capture 408 [82%] [25.50dB] [on] !!-------Mixer controls for card Headphones Card hw:2 'Headphones'/'bcm2835 Headphones' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'Headphone',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback -2121 [76%] [-21.21dB] [on] !!-------Mixer controls for card Webcam Card hw:3 'Webcam'/'C922 Pro Stream Webcam at usb-0000:01:00.0-1.3, high speed' Mixer name : 'USB Mixer' Components : 'USB046d:085c' Controls : 4 Simple ctrls : 1 Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 15 Mono: Capture 11 [73%] [42.00dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.b1 { control.1 { iface MIXER name 'HDMI Playback Volume' value 0 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 0 } } control.2 { iface MIXER name 'HDMI Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } state.Device { control.1 { iface PCM name 'Capture Channel Map' value 0 comment { access read type INTEGER count 1 range '0 - 36' } } control.2 { iface MIXER name 'Mic Capture Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'Mic Capture Volume' value 408 comment { access 'read write' type INTEGER count 1 range '0 - 496' dbmin 0 dbmax 3100 dbvalue.0 2550 } } control.4 { iface CARD name 'Keep Interface' value false comment { access 'read write' type BOOLEAN count 1 } } } state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value -2121 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -2121 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } state.Webcam { control.1 { iface PCM name 'Capture Channel Map' value.0 0 value.1 0 comment { access read type INTEGER count 2 range '0 - 36' } } control.2 { iface MIXER name 'Mic Capture Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'Mic Capture Volume' value 11 comment { access 'read write' type INTEGER count 1 range '0 - 15' dbmin 2000 dbmax 5000 dbvalue.0 4200 } } control.4 { iface CARD name 'Keep Interface' value false comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ 8021q bcm2835_codec bcm2835_mmal_vchiq bcm2835_v4l2 binfmt_misc bluetooth bnep brcmfmac brcmutil btbcm cfg80211 cmac drm drm_kms_helper drm_panel_orientation_quirks ecdh_generic evdev fb_sys_fops fuse garp gpu_sched hci_uart hwmon i2c_dev ip_tables ipv6 joydev libcomposite llc media nfnetlink nfnetlink_log nfnetlink_queue raspberrypi_hwmon rfcomm rfkill rpivid_mem serdev snd snd_bcm2835 snd_compress snd_hwdep snd_pcm snd_pcm_dmaengine snd_rawmidi snd_seq_device snd_soc_core snd_timer snd_usb_audio snd_usbmidi_lib stp syscopyarea sysfillrect sysimgblt udc_core uio uio_pdrv_genirq usb_f_fs uvcvideo v3d v4l2_common v4l2_mem2mem v4l2loopback vc4 vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev x_tables !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 457024 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 cma=64M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 cma=256M video=HDMI-A-1:3840x2160M@30 smsc95xx.macaddr=DC:A6:32:B6:52:16 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=701cbb0c-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) -- [ 4.088171] usb 1-1.1: [50] FU [Mic Capture Volume] ch = 1, val = 0/7936/16 [ 4.094358] usbcore: registered new interface driver snd-usb-audio [ 4.205820] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 4.220729] bcm2835_audio soc:audio: card created with 4 channels !!Packages installed !!-------------------- ii alsa-utils 1.1.8-2 armhf Utilities for configuring and using ALSA