!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Tue Mar 31 18:52:46 UTC 2026 !!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 !!------------------- vc4 (card 0) snd_bcm2835 (card 1) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [vc4hdmi ]: vc4-hdmi - vc4-hdmi vc4-hdmi 1 [Headphones ]: bcm2835_headpho - bcm2835 Headphones bcm2835 Headphones !!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: vc4 fkms_max_refresh_rate : 85 force_hotplug : 0 tv_norm : !!Module: snd_bcm2835 enable_hdmi : N enable_headphones : Y force_bulk : N num_channels : 8 !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: /sys/class/sound/card0 |-- controlC0 | |-- dev | |-- device -> ../../card0 | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- device -> ../../../3f902000.hdmi |-- id |-- input1 | |-- capabilities | |-- device -> ../../card0 | |-- event1 | |-- id | |-- inhibited | |-- modalias | |-- name | |-- phys | |-- power | |-- properties | |-- subsystem -> ../../../../../../../class/input | |-- uevent | `-- uniq |-- number |-- pcmC0D0p | |-- dev | |-- device -> ../../card0 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../class/sound `-- uevent !!Card: /sys/class/sound/card1 Driver: /sys/bus/vchiq-bus/drivers/bcm2835-audio Tree: /sys/class/sound/card1 |-- controlC1 | |-- dev | |-- device -> ../../card1 | |-- power | |-- subsystem -> ../../../../../../../../class/sound | `-- uevent |-- device -> ../../../bcm2835-audio |-- id |-- number |-- pcmC1D0p | |-- dev | |-- device -> ../../card1 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../../class/sound `-- uevent !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Mar 31 19:52 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Mar 31 19:52 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 2 Mar 31 19:52 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Mar 31 19:52 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Mar 31 19:52 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Mar 31 19:52 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Mar 30 14:01 . drwxr-xr-x 3 root root 180 Mar 30 14:01 .. lrwxrwxrwx 1 root root 12 Mar 30 14:01 platform-3f00b840.mailbox -> ../controlC1 lrwxrwxrwx 1 root root 12 Mar 30 14:01 platform-3f902000.hdmi -> ../controlC0 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) pcm.!default { type hw card 0 } ctl.!default { type hw card 0 } !!Aplay/Arecord output !!-------------------- APLAY aplay: device_list:279: no soundcards found... ARECORD arecord: device_list:279: no soundcards found... !!Amixer output !!------------- !!-------Mixer controls for card vc4hdmi Invalid card number 'vc4hdmi'. Invalid card number 'vc4hdmi'. !!-------Mixer controls for card Headphones Invalid card number 'Headphones'. Invalid card number 'Headphones'. !!Alsactl output !!-------------- --startcollapse-- --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 cec cfg80211 cmac drm drm_display_helper drm_dma_helper drm_kms_helper drm_panel_orientation_quirks dvb_core dvb_usb_rtl28xxu dvb_usb_v2 ecc ecdh_generic fc0013 fuse hci_uart i2c_bcm2835 i2c_dev i2c_mux ip_tables ipv6 libaes lz4_compress mc nfnetlink raspberrypi_gpiomem raspberrypi_hwmon regmap_i2c rfcomm rfkill rtl2832 rtl2832_sdr 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_core snd_soc_hdmi_codec snd_timer uio uio_pdrv_genirq v4l2_mem2mem vc4 vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev x_tables zram !!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 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=tty1 root=PARTUUID=a13ff4f5-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles [ 0.000000] cgroup: Disabling memory control group subsystem -- [ 2.649107] input: vc4-hdmi as /devices/platform/soc/3f902000.hdmi/rc/rc0/input0 [ 2.653298] input: vc4-hdmi HDMI Jack as /devices/platform/soc/3f902000.hdmi/sound/card0/input1 [ 2.655112] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 9.317831] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 9.319228] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 9.320522] sd 1:0:0:0: Attached scsi generic sg1 type 0 [ 9.337606] bcm2835-audio bcm2835-audio: card created with 8 channels [ 9.346956] rpi-gpiomem 3f200000.gpiomem: window base 0x3f200000 size 0x00001000 !!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