!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Sun Dec 28 14:52:49 UTC 2025 !!Linux Distribution !!------------------ Debian GNU/Linux 13 \n \l PRETTY_NAME="Debian GNU/Linux 13 (trixie)" NAME="Debian GNU/Linux" DEBIAN_VERSION_FULL=13.2 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 !!--------------- !!ACPI SoundWire Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: #1 SMP PREEMPT Debian 1:6.12.47-1 rpt1 (2025-09-16) Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.12.47 rpt-rpi-v8 Library version: Utilities version: 1.2.14 !!Loaded ALSA modules !!------------------- snd_bcm2835 (card 0) vc4 (card 1) snd_soc_hifiberry_dacplushd (card 2) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [Headphones ]: bcm2835_headpho - bcm2835 Headphones bcm2835 Headphones 1 [vc4hdmi ]: vc4-hdmi - vc4-hdmi vc4-hdmi 2 [sndrpihifiberry]: HifiberryDacplu - snd_rpi_hifiberry_dacplushd snd_rpi_hifiberry_dacplushd !!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_hdmi=0 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_hdmi : N enable_headphones : Y force_bulk : N num_channels : 8 !!Module: vc4 fkms_max_refresh_rate : 85 force_hotplug : 0 tv_norm : (null) !!Module: snd_soc_hifiberry_dacplushd * : !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/vchiq-bus/drivers/bcm2835-audio Tree: !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: !!Card: /sys/class/sound/card2 Driver: /sys/bus/platform/drivers/snd-rpi-hifiberry-dacplushd Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Dec 28 15:05 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Dec 28 15:05 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 7 Dec 28 15:05 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 2 Dec 28 15:05 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Dec 28 15:05 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 6 Dec 28 15:05 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 1 Dec 28 15:41 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Dec 28 15:05 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Dec 28 15:05 . drwxr-xr-x 3 root root 220 Dec 28 15:05 .. lrwxrwxrwx 1 root root 12 Dec 28 15:05 platform-3f00b840.mailbox -> ../controlC0 lrwxrwxrwx 1 root root 12 Dec 28 15:05 platform-3f902000.hdmi -> ../controlC1 lrwxrwxrwx 1 root root 12 Dec 28 15:05 platform-soc:sound -> ../controlC2 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) # Setup is as follows # APP(mpd/squeezelite) -> # alsaeq -> TODO # dmixer -> # hw:1,0 - hifiberry pcm.dmixer { type dmix ipc_key 1024 # Unique identifier ipc_perm 0666 # Allow all users (important for system services like mpd) slave { pcm "hw:1,0" # <-- REPLACE X,Y WITH YOUR ACTUAL CARD ID (e.g., hw:1,0) period_time 0 period_size 1024 buffer_size 8192 # rate 44100 } } pcm.!default { type plug slave.pcm plugequal; } ctl.!default { type hw card 1 } ctl.equal { type equal; } pcm.plugequal { type equal; slave.pcm "plug:dmixer"; # "plughw:1,0"; } pcm.equal { type plug; slave.pcm plugequal; } !!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: vc4hdmi [vc4-hdmi], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: sndrpihifiberry [snd_rpi_hifiberry_dacplushd], device 0: HiFiBerry DAC HD HiFi pcm179x-hifi-0 [HiFiBerry DAC HD HiFi pcm179x-hifi-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 -1988 [78%] [-19.88dB] [on] !!-------Mixer controls for card vc4hdmi Card sysdefault:1 'vc4hdmi'/'vc4-hdmi' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!-------Mixer controls for card sndrpihifiberry Card sysdefault:2 'sndrpihifiberry'/'snd_rpi_hifiberry_dacplushd' Mixer name : '' Components : '' Controls : 3 Simple ctrls : 3 Simple mixer control 'DAC',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 240 Mono: Front Left: Playback 200 [83%] [-20.00dB] Front Right: Playback 200 [83%] [-20.00dB] Simple mixer control 'DAC Invert Output',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'DAC Rolloff Filter',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] !!Alsactl output !!-------------- --startcollapse-- state.Headphones { control.1 { iface MIXER name 'PCM Playback Volume' value -1988 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -1988 } } control.2 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } state.vc4hdmi { control.1 { iface CARD name 'HDMI Jack' value false comment { access read type BOOLEAN count 1 } } control.2 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 value.2 0 value.3 0 value.4 0 value.5 0 value.6 0 value.7 0 comment { access 'read volatile' type INTEGER count 8 range '0 - 36' } } control.3 { iface PCM name 'IEC958 Playback Mask' value ffffffffffffffffffffffffffffffffffffffffffffffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 comment { access read type IEC958 count 1 } } control.4 { iface PCM name 'IEC958 Playback Default' value '0400000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name ELD value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read volatile' type BYTES count 128 } } } state.sndrpihifiberry { control.1 { iface MIXER name 'DAC Playback Volume' value.0 200 value.1 200 comment { access 'read write' type INTEGER count 2 range '0 - 240' dbmin -9999999 dbmax 0 dbvalue.0 -2000 dbvalue.1 -2000 } } control.2 { iface MIXER name 'DAC Invert Output Switch' value false comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'DAC Rolloff Filter Switch' value false comment { access 'read write' type BOOLEAN count 1 } } } --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 br_netfilter brcmfmac brcmfmac_wcc brcmutil bridge btbcm cec cfg80211 clk_hifiberry_dachd cmac cp210x drm drm_display_helper drm_dma_helper drm_kms_helper drm_panel_orientation_quirks ecc ecdh_generic fuse hci_uart i2c_bcm2835 i2c_dev ip_set ip_set_hash_net ip_tables ipv6 libaes llc lz4_compress mc nf_conntrack nf_conntrack_netlink nf_defrag_ipv4 nf_defrag_ipv6 nf_nat nf_tables nfnetlink nft_chain_nat nft_compat overlay raspberrypi_gpiomem raspberrypi_hwmon regmap_i2c rfcomm rfkill sch_fq_codel sg snd snd_bcm2835 snd_compress snd_hrtimer snd_pcm snd_pcm_dmaengine snd_seq snd_seq_device snd_seq_dummy snd_soc_bcm2835_i2s snd_soc_core snd_soc_hdmi_codec snd_soc_hifiberry_dacplushd snd_soc_pcm179x_codec snd_soc_pcm179x_i2c snd_timer stp tun uio uio_pdrv_genirq usbserial v4l2_mem2mem vc4 vc_sm_cma veth videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev x_tables xfrm_algo xfrm_user xt_MASQUERADE xt_addrtype xt_conntrack xt_nat xt_pkttype xt_set xt_tcpudp zram !!ALSA/HDA dmesg !!-------------- [ 0.000000] alternatives: applying boot alternatives [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 cgroup_disable=memory snd_bcm2835.enable_headphones=1 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_hdmi=0 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=685cadca-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles cfg80211.ieee80211_regdom=DK [ 0.000000] cgroup: Disabling memory control group subsystem -- [ 11.271638] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 11.295923] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 11.296157] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4]) [ 11.307235] bcm2835-audio bcm2835-audio: card created with 8 channels [ 11.311123] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4]) -- [ 11.415332] input: vc4-hdmi as /devices/platform/soc/3f902000.hdmi/rc/rc0/input0 [ 11.422056] input: vc4-hdmi HDMI Jack as /devices/platform/soc/3f902000.hdmi/sound/card1/input1 [ 11.426705] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 13.412417] pcm179x 1-004c: No cache used with register defaults set! [ 13.480045] snd-rpi-hifiberry-dacplushd soc:sound: ASoC: driver name too long 'HifiberryDacplusHD' -> 'HifiberryDacplu' [ 13.629279] hwmon hwmon1: Undervoltage detected! !!Packages installed !!-------------------- ii alsa-topology-conf 1.2.5.1-3 all ALSA topology configuration files ii alsa-ucm-conf 1.2.14-1 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.14-1 rpt1 arm64 Utilities for configuring and using ALSA