!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Fri Jul 9 19:27:56 UTC 2021 !!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: 5.10.17-v7l Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.10.17-v7l Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 snd_bcm2835 vc4 vc4 !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [ALSA ]: bcm2835_alsa - bcm2835 ALSA bcm2835 ALSA 1 [b1 ]: bcm2835_hdmi - bcm2835 HDMI 1 bcm2835 HDMI 1 2 [vc4hdmi0 ]: vc4-hdmi - vc4-hdmi-0 vc4-hdmi-0 3 [vc4hdmi1 ]: vc4-hdmi - vc4-hdmi-1 vc4-hdmi-1 !!PCI Soundcards installed in the system !!-------------------------------------- !!Advanced information - PCI Vendor/Device/Subsystem ID's !!------------------------------------------------------- !!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_compat_alsa=1 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : Y enable_hdmi : Y enable_headphones : N force_bulk : N !!Module: snd_bcm2835 enable_compat_alsa : Y enable_hdmi : Y enable_headphones : N force_bulk : N !!Module: vc4 fkms_max_refresh_rate : 85 !!Module: vc4 fkms_max_refresh_rate : 85 !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Jul 9 21:22 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Jul 9 21:22 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 64 Jul 9 21:22 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 96 Jul 9 21:22 /dev/snd/controlC3 crw-rw---- 1 root audio 116, 16 Jul 9 21:22 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 17 Jul 9 21:22 /dev/snd/pcmC0D1p crw-rw---- 1 root audio 116, 18 Jul 9 21:22 /dev/snd/pcmC0D2p crw-rw---- 1 root audio 116, 48 Jul 9 21:22 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 80 Jul 9 21:22 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 112 Jul 9 21:22 /dev/snd/pcmC3D0p crw-rw---- 1 root audio 116, 33 Jul 9 21:22 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Jul 9 21:22 . drwxr-xr-x 3 root root 280 Jul 9 21:22 .. lrwxrwxrwx 1 root root 12 Jul 9 21:22 platform-bcm2835_audio -> ../controlC1 lrwxrwxrwx 1 root root 12 Jul 9 21:22 platform-fef00700.hdmi -> ../controlC2 lrwxrwxrwx 1 root root 12 Jul 9 21:22 platform-fef05700.hdmi -> ../controlC3 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) pcm.monocard{ slave.pcm "hw:Binary file (standard input) matches" slave.channels 2 type route ttable { # Left channel 0.0 1 1.0 0 # Right channel 0.1 0 1.1 1 } } pcm.!default monocard !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA] Subdevices: 4/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 IEC958/HDMI [bcm2835 IEC958/HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: ALSA [bcm2835 ALSA], device 2: bcm2835 IEC958/HDMI1 [bcm2835 IEC958/HDMI1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1] Subdevices: 3/3 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 card 2: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM vc4-hdmi-hifi-0 [MAI PCM vc4-hdmi-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 3: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM vc4-hdmi-hifi-0 [MAI PCM vc4-hdmi-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card 0 [ALSA] Card hw:0 'ALSA'/'bcm2835 ALSA' Mixer name : 'Broadcom Mixer' Components : '' Controls : 5 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback -1055 [86%] [-10.55dB] [on] !!-------Mixer controls for card 1 [b1] Card hw:1 '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 -94 [95%] [-0.94dB] [on] !!-------Mixer controls for card 2 [vc4hdmi0] Card hw:2 'vc4hdmi0'/'vc4-hdmi-0' Mixer name : '' Components : '' Controls : 4 Simple ctrls : 0 !!-------Mixer controls for card 3 [vc4hdmi1] Card hw:3 'vc4hdmi1'/'vc4-hdmi-1' Mixer name : '' Components : '' Controls : 4 Simple ctrls : 0 !!Alsactl output !!-------------- --startcollapse-- --endcollapse-- !!All Loaded Modules !!------------------ Module iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 joypi iptable_mangle iptable_filter 8021q garp stp llc 8822bu sha256_generic joydev cfg80211 rfkill v3d gpu_sched display_connector raspberrypi_hwmon bcm2835_codec bcm2835_v4l2 bcm2835_isp bcm2835_mmal_vchiq i2c_mux_pinctrl v4l2_mem2mem sg i2c_mux videobuf2_vmalloc vc_sm_cma videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 i2c_brcmstb videobuf2_common i2c_bcm2835 videodev snd_bcm2835 mc vc4 cec rpi_dpidac snd_soc_core drm_kms_helper rpivid_mem snd_compress snd_pcm_dmaengine snd_pcm snd_timer drm snd drm_panel_orientation_quirks syscopyarea sysfillrect sysimgblt fb_sys_fops backlight nvmem_rmem uio_pdrv_genirq uio binfmt_misc i2c_dev uinput ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 964099 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 video=HDMI-A-1:640x480M@60 smsc95xx.macaddr=DC:A6:32:7D:E8:79 vc_mem.mem_base=0x3eb00000 vc_mem.mem_size=0x3ff00000 console=ttyAMA0,115200 console=tty2 root=PARTUUID=05c040c4-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait loglevel=0 quiet splash logo.nologo consoleblank=0 vt.global_cursor_default=0 snd-bcm2835.enable_compat_alsa=1 plymouth.enable=0 [ 0.000000] Kernel parameter elevator= does not have any effect anymore. -- [ 5.399458] mc: Linux media interface: v0.10 [ 5.415771] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 5.450562] bcm2835_audio bcm2835_audio: card created with 5 channels