!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Tue Nov 16 21:59:11 UTC 2021 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 4.19.118-v7l Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.19.118-v7l Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [Headphones ]: bcm2835_headphonbcm2835 Headphones - bcm2835 Headphones bcm2835 Headphones !!PCI Soundcards installed in the system !!-------------------------------------- !!Advanced information - PCI Vendor/Device/Subsystem ID's !!------------------------------------------------------- !!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 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 !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Nov 16 15:08 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 16 Nov 16 15:08 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 1 Nov 16 15:08 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Nov 16 15:08 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Nov 16 15:08 . drwxr-xr-x 3 root root 140 Nov 16 15:08 .. lrwxrwxrwx 1 root root 12 Nov 16 15:08 platform-soc: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 0 [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 400 [100%] [4.00dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value 400 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 400 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module sg cmac rfcomm bnep hci_uart btbcm serdev bluetooth ecdh_generic 8021q garp stp llc evdev vc4 brcmfmac brcmutil drm_kms_helper snd_soc_core cfg80211 bcm2835_v4l2 snd_bcm2835 snd_compress v4l2_common bcm2835_codec snd_pcm_dmaengine v3d videobuf2_vmalloc snd_pcm v4l2_mem2mem raspberrypi_hwmon bcm2835_mmal_vchiq gpu_sched videobuf2_dma_contig hwmon videobuf2_memops videobuf2_v4l2 drm rfkill snd_timer videobuf2_common syscopyarea sysfillrect sysimgblt videodev fb_sys_fops snd drm_panel_orientation_quirks media vc_sm_cma rpivid_mem uio_pdrv_genirq uio i2c_dev ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1011008 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 cma=64M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 cma=256M smsc95xx.macaddr=DC:A6:32:87:24:5B vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=b084bc32-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) -- [ 3.770356] bcm2835-codec bcm2835-codec: Loaded V4L2 encode [ 3.770467] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 3.775228] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned. -- [ 4.018448] usbcore: registered new interface driver brcmfmac [ 4.177989] [drm] No displays found. Consider forcing hotplug if HDMI is attached [ 4.178088] vc4-drm soc:gpu: bound fe600000.firmwarekms (ops vc4_fkms_ops [vc4])