!!################################ !!ALSA Information Script v 0.5.1 !!################################ !!Script ran on: Sat Mar 1 23:53:17 UTC 2025 !!Linux Distribution !!------------------ Debian GNU/Linux 12 \n \l PRETTY_NAME="Debian GNU/Linux 12 (bookworm)" NAME="Debian GNU/Linux" ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/" !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 6.6.51 rpt-rpi-v8 Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.6.51 rpt-rpi-v8 Library version: 1.2.8 Utilities version: 1.2.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 (card 0) snd_soc_i_sabre_q2m (card 1) !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [Headphones ]: bcm2835_headpho - bcm2835 Headphones bcm2835 Headphones 1 [DAC ]: I-Sabre_Q2M_DAC - I-Sabre Q2M DAC I-Sabre Q2M DAC !!PCI Soundcards installed in the system !!-------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_bcm2835: enable_headphones=0 snd_bcm2835: enable_headphones=1 snd_bcm2835: enable_hdmi=1 snd_bcm2835: enable_compat_alsa= snd_bcm2835: enable_hdmi=1 snd_bcm2835: enable_headphones=1 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_hdmi : Y enable_headphones : Y force_bulk : N num_channels : 8 !!Module: snd_soc_i_sabre_q2m * : !!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-rpi-i-sabre-q2m Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Mar 2 00:32 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Mar 2 00:32 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 2 Mar 2 00:32 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Mar 2 00:32 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Mar 2 00:03 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Mar 2 00:32 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Mar 2 00:32 . drwxr-xr-x 3 root root 180 Mar 2 00:03 .. lrwxrwxrwx 1 root root 12 Mar 2 00:32 platform-bcm2835_audio -> ../controlC0 lrwxrwxrwx 1 root root 12 Mar 2 00:32 platform-soc:sound -> ../controlC1 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones] Subdevices: 7/8 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: DAC [I-Sabre Q2M DAC], device 0: I-Sabre Q2M DAC i-sabre-codec-dai-0 [I-Sabre Q2M DAC i-sabre-codec-dai-0] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card Headphones Card sysdefault:0 'Headphones'/'bcm2835 Headphones' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback 31 [97%] [0.31dB] [on] !!-------Mixer controls for card DAC Card sysdefault:1 'DAC'/'I-Sabre Q2M DAC' Mixer name : '' Components : '' Controls : 4 Simple ctrls : 3 Simple mixer control 'I2S/SPDIF Select',0 Capabilities: enum Items: 'I2S' 'SPDIF' Item0: 'I2S' Simple mixer control 'Digital',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 100 Mono: Playback 100 [100%] [0.00dB] [off] Simple mixer control 'FIR Filter Type',0 Capabilities: enum Items: 'brick wall' 'corrected minimum phase fast' 'minimum phase slow' 'minimum phase fast' 'linear phase slow' 'linear phase fast' 'apodizing fast' Item0: 'brick wall' !!Alsactl output !!-------------- --startcollapse-- state.Headphones { control.1 { iface MIXER name 'PCM Playback Volume' value 31 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 31 } } control.2 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } state.DAC { control.1 { iface MIXER name 'Digital Playback Volume' value 100 comment { access 'read write' type INTEGER count 1 range '0 - 100' dbmin -10000 dbmax 0 dbvalue.0 0 } } control.2 { iface MIXER name 'Digital Playback Switch' value false comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'FIR Filter Type' value 'brick wall' comment { access 'read write' type ENUMERATED count 1 item.0 'brick wall' item.1 'corrected minimum phase fast' item.2 'minimum phase slow' item.3 'minimum phase fast' item.4 'linear phase slow' item.5 'linear phase fast' item.6 'apodizing fast' } } control.4 { iface MIXER name 'I2S/SPDIF Select' value I2S comment { access 'read write' type ENUMERATED count 1 item.0 I2S item.1 SPDIF } } } --endcollapse-- !!All Loaded Modules !!------------------ aes_arm64 aes_generic af_alg algif_hash algif_skcipher backlight bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 binfmt_misc bluetooth bnep brcmfmac brcmfmac_wcc brcmutil btbcm cfg80211 cmac dm_mod drm drm_panel_orientation_quirks ecc ecdh_generic fb_ili9341 fbtft fuse gpio_ir_recv hci_uart i2c_bcm2835 ip_tables ipv6 ir_rc6_decoder libaes mc nvmem_rmem raspberrypi_gpiomem raspberrypi_hwmon regmap_i2c rfkill rpivid_hevc snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_bcm2835_i2s snd_soc_core snd_soc_i_sabre_codec snd_soc_i_sabre_q2m snd_timer spi_bcm2835 spidev uinput 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] alternatives: applying boot alternatives [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_headphones=0 snd_bcm2835.enable_headphones=1 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=0 bcm2708_fb.fbheight=0 bcm2708_fb.fbswap=1 smsc95xx.macaddr=DC:A6:32:68:71:2D vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=0bd1d7f9-02 rootfstype=ext4 fsck.repair=yes rootwait plymouth.ignore-serial-consoles dwc_otg.fiq_enable=1 dwc_otg.fiq_fsm_enable=1 dwc_otg.fiq_fsm_mask=0xF dwc_otg.nak_holdoff=1 quiet console=ttyS0,115200 console=tty1 elevator=noop logo.nologo vt.global_cursor_default=0 net.ifnames=0 snd-bcm2835.enable_compat_alsa= snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 loglevel=0 [ 0.000000] Kernel parameter elevator= does not have any effect anymore. -- [ 3.377137] systemd[1]: Detected architecture arm64. [ 3.386056] systemd[1]: Hostname set to . [ 4.051572] systemd[1]: Queued start job for default target multi-user.target. -- [ 5.886817] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned. [ 5.906616] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 5.907475] snd_bcm2835: unknown parameter 'enable_compat_alsa' ignored [ 5.909229] bcm2835-codec bcm2835-codec: Device registered as /dev/video10 -- [ 5.929042] bcm2835-codec bcm2835-codec: Loaded V4L2 encode [ 5.929538] bcm2835_audio bcm2835_audio: card created with 8 channels [ 5.935431] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned. -- [ 6.471436] Bluetooth: SCO socket layer initialized [ 6.562493] snd-rpi-i-sabre-q2m soc:sound: Audiophonics Device ID : 01 [ 6.563997] snd-rpi-i-sabre-q2m soc:sound: Audiophonics API revision : 02 [ 6.573001] Bluetooth: HCI UART driver ver 2.3 !!Packages installed !!-------------------- ii alsa-topology-conf 1.2.5.1-2 all ALSA topology configuration files ii alsa-ucm-conf 1.2.8-1 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.8-1 rpt1 arm64 Utilities for configuring and using ALSA ii bluez-alsa-utils 4.0.0-2 arm64 Bluetooth Audio ALSA Backend (utils)