!!################################ !!ALSA Information Script v 0.5.0 !!################################ !!Script ran on: Tue Nov 2 18:21:17 UTC 2021 !!Linux Distribution !!------------------ Gentoo Base System release 2.7 NAME=Gentoo ID=gentoo PRETTY_NAME="Gentoo/Linux" HOME_URL="https://www.gentoo.org/" SUPPORT_URL="https://www.gentoo.org/support/" BUG_REPORT_URL="https://bugs.gentoo.org/" !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 5.4.45-v8-3b41649ff96d-p4-bis Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.4.45-v8-3b41649ff96d-p4-bis Library version: 1.2.3.2 Utilities version: 1.2.3 !!Loaded ALSA modules !!------------------- snd_bcm2835 (card 0) !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [Headphones ]: bcm2835_headphonbcm2835 Headphones - bcm2835 Headphones bcm2835 Headphones !!PCI Soundcards installed in the system !!-------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd_bcm2835: enable_compat_alsa=0 snd_bcm2835: enable_hdmi=1 snd_bcm2835: enable_headphones=1 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/bcm2835_audio Tree: /sys/class/sound/card0 |-- controlC0 | |-- dev | |-- device -> ../../card0 | |-- power | |-- subsystem -> ../../../../../../../../class/sound | `-- uevent |-- device -> ../../../bcm2835_audio |-- id |-- 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 !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Nov 2 18:18 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 16 Nov 2 18:18 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 1 Jan 1 1970 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Nov 2 18:18 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Nov 2 18:18 . drwxr-xr-x 3 root root 140 Nov 2 18:18 .. lrwxrwxrwx 1 root root 12 Nov 2 18:18 platform-bcm2835_audio -> ../controlC0 !!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 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 1 [96%] [0.01dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value 1 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 1 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ aes_neon_blk aes_neon_bs af_alg algif_skcipher bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 bluetooth bnep brcmfmac brcmutil btbcm cec cfg80211 cryptd crypto_simd drm drm_kms_helper drm_panel_orientation_quirks ecc ecdh_generic fb_sys_fops gpu_sched hci_uart ipv6 libsha256 lz4 lz4_compress mc nf_defrag_ipv6 raspberrypi_hwmon rfkill rpivid_mem serdev sha256_generic snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_core snd_timer spi_bcm2835 spidev syscopyarea sysfillrect sysimgblt uio uio_pdrv_genirq v3d v4l2_mem2mem vc4 vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 983808 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 smsc95xx.macaddr=DC:A6:32:79:40:20 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 dwc_otg.lpm_enable=0 console=tty console=ttyS0,115200 root=PARTUUID=7A0C8BB0-02 rootfstype=ext4 elevator=deadline fsck.repair=yes usbhid.mousepoll=0 rootwait loglevel=7 [ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) -- [ 11.790589] videodev: Linux video capture interface: v2.00 [ 11.801179] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 11.804126] bcm2835_audio bcm2835_audio: card created with 8 channels [ 11.851168] [drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 0 -- [ 11.960003] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 11.965729] [drm] No displays found. Consider forcing hotplug if HDMI is attached [ 11.965773] vc4-drm gpu: bound fe600000.firmwarekms (ops vc4_fence_ops [vc4])