!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Tue Dec 22 23:11:49 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: 5.10.1-v7l Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.10.1-v7l Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes !!Soundcards recognised by ALSA !!----------------------------- 0 [Headphones ]: bcm2835_headphonbcm2835 Headphones - bcm2835 Headphones bcm2835 Headphones !!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 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Dec 22 17:10 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 16 Dec 22 17:10 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 1 Dec 22 17:11 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Dec 22 17:10 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Dec 22 17:10 . drwxr-xr-x 3 root root 140 Dec 22 17:10 .. lrwxrwxrwx 1 root root 12 Dec 22 17:10 platform-bcm2835_audio -> ../controlC0 !!ALSA configuration files !!------------------------ !!User specific config file (~/.asoundrc) pcm.!default { type asym playback.pcm { type plug slave.pcm "output" } capture.pcm { type plug slave.pcm "input" } } pcm.output { type hw card 0 } ctl.!default { type hw card 0 } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card 0 [Headphones] Card hw:0 '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 -366 [93%] [-3.66dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value -366 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -366 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module snd_seq_dummy snd_seq snd_seq_device rfcomm cmac bnep hci_uart btbcm bluetooth ecdh_generic ecc 8021q garp stp llc hid_logitech_hidpp joydev brcmfmac brcmutil sha256_generic cfg80211 sg hid_logitech_dj bcm2835_codec vc4 v4l2_mem2mem xpad ff_memless bcm2835_isp rfkill videobuf2_dma_contig bcm2835_v4l2 raspberrypi_ts bcm2835_mmal_vchiq cec videobuf2_vmalloc videobuf2_memops raspberrypi_hwmon videobuf2_v4l2 drm_kms_helper videobuf2_common videodev v3d vc_sm_cma mc gpu_sched drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine syscopyarea sysfillrect sysimgblt rpivid_mem fb_sys_fops rpi_backlight backlight uio_pdrv_genirq uio squashfs snd_bcm2835 snd_pcm snd_timer snd uinput ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 997120 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 smsc95xx.macaddr=DC:A6:32:83:67:22 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=3aa309c5-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait loglevel=3 consoleblank=0 plymouth.enable=0 [ 0.000000] Kernel parameter elevator= does not have any effect anymore. -- [ 3.310379] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ 3.526894] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 3.557545] bcm2835_audio bcm2835_audio: card created with 8 channels