!!################################ !!ALSA Information Script v 0.4.65 !!################################ !!Script ran on: Wed Jan 13 07:51:27 UTC 2021 !!Linux Distribution !!------------------ CentOS Linux release 7.9.2009 (AltArch) NAME="CentOS Linux" VERSION="7 (AltArch)" ID="centos" ID_LIKE="rhel fedora" PRETTY_NAME="CentOS Linux 7 (AltArch)" CPE_NAME="cpe:/o:centos:centos:7:server" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" CentOS Linux release 7.9.2009 (AltArch) CentOS Linux release 7.9.2009 (AltArch) !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 5.4.72-v8.1.el7 Operating System: GNU/Linux Architecture: aarch64 Processor: aarch64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.4.72-v8.1.el7 Library version: Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/bin/pulseaudio) Running - Yes !!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 !!ALSA Device nodes !!----------------- crw-rw----. 1 root audio 116, 0 Jan 1 1970 /dev/snd/controlC0 crw-rw----. 1 root audio 116, 16 Jan 1 1970 /dev/snd/pcmC0D0p crw-rw----. 1 root audio 116, 1 Jan 1 1970 /dev/snd/seq crw-rw----. 1 root audio 116, 33 Jan 1 1970 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x. 2 root root 60 Jan 1 1970 . drwxr-xr-x. 3 root root 140 Jan 1 1970 .. lrwxrwxrwx. 1 root root 12 Jan 1 1970 platform-bcm2835_audio -> ../controlC0 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) # # Place your global alsa-lib configuration here... # !!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 -2000 [77%] [-20.00dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value -2000 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -2000 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ aes_arm64 aes_neon_blk aes_neon_bs af_key ah4 ah6 bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 brcmfmac brcmutil cast5_generic cast_common ccm cfg80211 chacha20poly1305 chacha_neon cmac crc_ccitt cryptd crypto_simd ctr deflate dm_log dm_mirror dm_mod dm_region_hash ebtable_broute ebtable_filter ebtable_nat ebtables esp4 esp6 fuse gcm ip6_tables ip6_udp_tunnel ip6t_REJECT ip6t_rpfilter ip6table_filter ip6table_mangle ip6table_nat ip6table_raw ip6table_security ip_set ip_tables ip_tunnel ip_vti ipcomp ipcomp6 ipt_REJECT iptable_filter iptable_mangle iptable_nat iptable_raw iptable_security ipv6 l2tp_core l2tp_netlink l2tp_ppp libchacha libsha256 mc md5 nf_conntrack nf_defrag_ipv4 nf_defrag_ipv6 nf_nat nf_reject_ipv4 nf_reject_ipv6 nfnetlink poly1305_neon ppp_generic pppox raspberrypi_hwmon rfkill rpivid_mem sha1_generic sha256_generic slhc snd snd_bcm2835 snd_pcm snd_seq snd_seq_device snd_timer tunnel4 tunnel6 udp_tunnel uio uio_pdrv_genirq v4l2_mem2mem vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev x_tables xcbc xfrm4_tunnel xfrm6_tunnel xfrm_ipcomp xt_conntrack xt_tcpudp zlib_deflate !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 996912 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 bcm2708_fb.fbwidth=0 bcm2708_fb.fbheight=0 bcm2708_fb.fbswap=1 smsc95xx.macaddr=DC:A6:32:D3:4F:ED vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p3 rootfstype=ext4 elevator=deadline rootwait [ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) -- [ 5.044673] bcm2835-codec bcm2835-codec: Loaded V4L2 isp [ 5.184162] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 5.190391] Adding 499708k swap on /dev/mmcblk0p2. Priority:-2 extents:1 across:499708k SSFS !!Packages installed !!-------------------- alsa-tools-firmware-1.1.0-1.el7.aarch64 alsa-utils-1.1.8-2.el7.aarch64 alsa-lib-1.1.8-1.el7.aarch64 alsa-plugins-pulseaudio-1.1.6-1.el7.aarch64