!!################################ !!ALSA Information Script v 0.5.1 !!################################ !!Script ran on: Tue Jul 19 12:07:00 UTC 2022 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 5.10.103-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.10.103-v7 Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 (card 0) snd_dummy (card 1) !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [Headphones ]: bcm2835_headpho - bcm2835 Headphones bcm2835 Headphones 1 [Dummy ]: Dummy - Dummy Dummy 1 !!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 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!Module: snd_dummy enable : Y,N,N,N,N,N,N,N fake_buffer : Y hrtimer : Y id : (null),(null),(null),(null),(null),(null),(null),(null) index : -1,-1,-1,-1,-1,-1,-1,-1 model : (null),(null),(null),(null),(null),(null),(null),(null) pcm_devs : 1,1,1,1,1,1,1,1 pcm_substreams : 8,8,8,8,8,8,8,8 !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/bcm2835_audio Tree: !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/snd_dummy Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Jul 19 10:28 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Jul 19 10:28 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 16 Jul 19 10:28 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 56 Jul 19 10:28 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 48 Jul 19 10:28 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Jul 18 21:17 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jul 19 10:28 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Jul 18 21:17 . drwxr-xr-x 3 root root 200 Jul 18 21:17 .. lrwxrwxrwx 1 root root 12 Jul 19 10:28 platform-bcm2835_audio -> ../controlC0 lrwxrwxrwx 1 root root 12 Jul 19 10:28 platform-snd_dummy.0 -> ../controlC1 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) pcm.!default { type asym playback.pcm "plughw:0" capture.pcm "plughw:1" } !!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 card 1: Dummy [Dummy], device 0: Dummy PCM [Dummy PCM] 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 **** card 1: Dummy [Dummy], device 0: Dummy PCM [Dummy PCM] 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 !!Amixer output !!------------- !!-------Mixer controls for card 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 -2291 [75%] [-22.91dB] [on] !!-------Mixer controls for card Dummy Card hw:1 'Dummy'/'Dummy 1' Mixer name : 'Dummy Mixer' Components : '' Controls : 11 Simple ctrls : 6 Simple mixer control 'Master',0 Capabilities: volume cswitch Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: -50 - 100 Front Left: 61 [74%] [-11.70dB] Capture [off] Front Right: 61 [74%] [-11.70dB] Capture [off] Simple mixer control 'Synth',0 Capabilities: volume cswitch Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: -50 - 100 Front Left: 0 [33%] [-30.00dB] Capture [off] Front Right: 0 [33%] [-30.00dB] Capture [off] Simple mixer control 'Line',0 Capabilities: volume cswitch Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: -50 - 100 Front Left: 0 [33%] [-30.00dB] Capture [off] Front Right: 0 [33%] [-30.00dB] Capture [off] Simple mixer control 'CD',0 Capabilities: volume cswitch Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: -50 - 100 Front Left: 0 [33%] [-30.00dB] Capture [off] Front Right: 0 [33%] [-30.00dB] Capture [off] Simple mixer control 'Mic',0 Capabilities: volume cswitch Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: -50 - 100 Front Left: 0 [33%] [-30.00dB] Capture [off] Front Right: 0 [33%] [-30.00dB] Capture [off] Simple mixer control 'External I/O Box',0 Capabilities: enum Items: 'None' 'CD Player' Item0: 'CD Player' !!Alsactl output !!-------------- --startcollapse-- state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value -2291 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -2291 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } state.Dummy { control.1 { iface MIXER name 'Master Volume' value.0 61 value.1 61 comment { access 'read write' type INTEGER count 2 range '-50 - 100' dbmin -4500 dbmax 0 dbvalue.0 -1170 dbvalue.1 -1170 } } control.2 { iface MIXER name 'Master Capture Switch' value.0 false value.1 false comment { access 'read write' type BOOLEAN count 2 } } control.3 { iface MIXER name 'Synth Volume' value.0 0 value.1 0 comment { access 'read write' type INTEGER count 2 range '-50 - 100' dbmin -4500 dbmax 0 dbvalue.0 -3000 dbvalue.1 -3000 } } control.4 { iface MIXER name 'Synth Capture Switch' value.0 false value.1 false comment { access 'read write' type BOOLEAN count 2 } } control.5 { iface MIXER name 'Line Volume' value.0 0 value.1 0 comment { access 'read write' type INTEGER count 2 range '-50 - 100' dbmin -4500 dbmax 0 dbvalue.0 -3000 dbvalue.1 -3000 } } control.6 { iface MIXER name 'Line Capture Switch' value.0 false value.1 false comment { access 'read write' type BOOLEAN count 2 } } control.7 { iface MIXER name 'Mic Volume' value.0 0 value.1 0 comment { access 'read write' type INTEGER count 2 range '-50 - 100' dbmin -4500 dbmax 0 dbvalue.0 -3000 dbvalue.1 -3000 } } control.8 { iface MIXER name 'Mic Capture Switch' value.0 false value.1 false comment { access 'read write' type BOOLEAN count 2 } } control.9 { iface MIXER name 'CD Volume' value.0 0 value.1 0 comment { access 'read write' type INTEGER count 2 range '-50 - 100' dbmin -4500 dbmax 0 dbvalue.0 -3000 dbvalue.1 -3000 } } control.10 { iface MIXER name 'CD Capture Switch' value.0 false value.1 false comment { access 'read write' type BOOLEAN count 2 } } control.11 { iface MIXER name 'External I/O Box' value 'CD Player' comment { access 'read write' type ENUMERATED count 1 item.0 None item.1 'CD Player' } } } --endcollapse-- !!All Loaded Modules !!------------------ 8021q bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 brcmfmac brcmutil cfg80211 fixed garp ip_tables ipv6 llc mc raspberrypi_hwmon rfkill sha256_generic snd snd_bcm2835 snd_compress snd_dummy snd_pcm snd_pcm_dmaengine snd_soc_core snd_soc_pcm1794a snd_timer spi_bcm2835 spidev stp uio uio_pdrv_genirq v4l2_mem2mem 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: 227360 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=480 bcm2708_fb.fbheight=720 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=PARTUUID=66f830f5-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait [ 0.000000] Kernel parameter elevator= does not have any effect anymore. -- [ 8.559263] systemd[1]: Reached target Swap. [ 8.820671] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 8.842750] bcm2835_audio bcm2835_audio: card created with 8 channels [ 9.491071] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) !!Packages installed !!-------------------- ii alsa-tools 1.1.7-1 armhf Console based ALSA utilities for specific hardware ii alsa-utils 1.1.8-2 rpt1 armhf Utilities for configuring and using ALSA