!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Fri Mar 2 19:53:46 UTC 2018 !!Linux Distribution !!------------------ Ubuntu 16.04.3 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 16.04.3 LTS" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.04.3 LTS" HOME_URL="http://www.ubuntu.com/" SUPPORT_URL="http://help.ubuntu.com/" BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/" UBUNTU_CODENAME=xenial !!DMI Information !!--------------- Manufacturer: Google Product Name: Google Compute Engine Product Version: Firmware Version: Google Board Vendor: Google Board Name: Google Compute Engine !!ACPI Device Status Information !!--------------- /sys/bus/acpi/devices/LNXCPU:00/status 15 /sys/bus/acpi/devices/LNXCPU:01/status 15 /sys/bus/acpi/devices/LNXCPU:02/status 15 /sys/bus/acpi/devices/LNXCPU:03/status 15 /sys/bus/acpi/devices/LNXCPU:04/status 15 /sys/bus/acpi/devices/LNXCPU:05/status 15 /sys/bus/acpi/devices/LNXCPU:06/status 15 /sys/bus/acpi/devices/LNXCPU:07/status 15 /sys/bus/acpi/devices/PNP0303:00/status 15 /sys/bus/acpi/devices/PNP0501:00/status 15 /sys/bus/acpi/devices/PNP0501:01/status 15 /sys/bus/acpi/devices/PNP0501:02/status 15 /sys/bus/acpi/devices/PNP0501:03/status 15 /sys/bus/acpi/devices/PNP0C0F:00/status 9 /sys/bus/acpi/devices/PNP0C0F:01/status 9 /sys/bus/acpi/devices/PNP0C0F:02/status 11 /sys/bus/acpi/devices/PNP0C0F:03/status 11 /sys/bus/acpi/devices/PNP0C0F:04/status 11 /sys/bus/acpi/devices/PNP0F13:00/status 15 /sys/bus/acpi/devices/QEMU0001:00/status 15 !!Kernel Information !!------------------ Kernel release: 4.13.0-36-generic Operating System: GNU/Linux Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.13.0-36-generic Library version: 1.1.0 Utilities version: 1.1.0 !!Loaded ALSA modules !!------------------- snd_aloop !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes Jack: Installed - Yes (/usr/bin/jackd) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [Loopback ]: Loopback - Loopback Loopback 1 !!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_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_usb_audio: index=-2 snd_usb_caiaq: index=-2 snd_usb_ua101: index=-2 snd_usb_us122l: index=-2 snd_usb_usx2y: index=-2 snd_cmipci: mpu_port=0x330 fm_port=0x388 snd_pcsp: index=-2 snd_usb_audio: index=-2 !!Loaded sound module options !!--------------------------- !!Module: snd_aloop enable : Y,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 pcm_notify : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 pcm_substreams : 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8 !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 2 Mar 2 03:05 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 4 Mar 2 11:29 /dev/snd/pcmC0D0c crw-rw---- 1 root audio 116, 3 Mar 2 11:53 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 6 Mar 2 03:05 /dev/snd/pcmC0D1c crw-rw---- 1 root audio 116, 5 Mar 2 03:05 /dev/snd/pcmC0D1p crw-rw---- 1 root audio 116, 1 Mar 2 03:05 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Mar 2 03:05 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Mar 2 03:05 . drwxr-xr-x 3 root root 200 Mar 2 03:05 .. lrwxrwxrwx 1 root root 12 Mar 2 03:05 platform-snd_aloop.0 -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM] Subdevices: 6/8 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 0: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM] 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 **** card 0: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM] Subdevices: 6/8 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 0: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM] 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 !!Amixer output !!------------- !!-------Mixer controls for card 0 [Loopback] Card hw:0 'Loopback'/'Loopback 1' Mixer name : 'Loopback Mixer' Components : '' Controls : 97 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 255 [100%] [0.00dB] Front Right: Playback 255 [100%] [0.00dB] !!Alsactl output !!-------------- --startcollapse-- state.Loopback { control.1 { iface PCM name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.2 { iface PCM name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface PCM name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.4 { iface PCM name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.5 { iface PCM name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.6 { iface PCM name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.7 { iface PCM subdevice 1 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.8 { iface PCM subdevice 1 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.9 { iface PCM subdevice 1 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.10 { iface PCM subdevice 1 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.11 { iface PCM subdevice 1 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.12 { iface PCM subdevice 1 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.13 { iface PCM subdevice 2 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.14 { iface PCM subdevice 2 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.15 { iface PCM subdevice 2 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.16 { iface PCM subdevice 2 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.17 { iface PCM subdevice 2 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.18 { iface PCM subdevice 2 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.19 { iface PCM subdevice 3 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.20 { iface PCM subdevice 3 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.21 { iface PCM subdevice 3 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.22 { iface PCM subdevice 3 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.23 { iface PCM subdevice 3 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.24 { iface PCM subdevice 3 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.25 { iface PCM subdevice 4 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.26 { iface PCM subdevice 4 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.27 { iface PCM subdevice 4 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.28 { iface PCM subdevice 4 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.29 { iface PCM subdevice 4 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.30 { iface PCM subdevice 4 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.31 { iface PCM subdevice 5 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.32 { iface PCM subdevice 5 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.33 { iface PCM subdevice 5 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.34 { iface PCM subdevice 5 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.35 { iface PCM subdevice 5 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.36 { iface PCM subdevice 5 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.37 { iface PCM subdevice 6 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.38 { iface PCM subdevice 6 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.39 { iface PCM subdevice 6 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.40 { iface PCM subdevice 6 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.41 { iface PCM subdevice 6 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.42 { iface PCM subdevice 6 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.43 { iface PCM subdevice 7 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.44 { iface PCM subdevice 7 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.45 { iface PCM subdevice 7 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.46 { iface PCM subdevice 7 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.47 { iface PCM subdevice 7 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.48 { iface PCM subdevice 7 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.49 { iface PCM device 1 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.50 { iface PCM device 1 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.51 { iface PCM device 1 name 'PCM Slave Active' value true comment { access read type BOOLEAN count 1 } } control.52 { iface PCM device 1 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.53 { iface PCM device 1 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.54 { iface PCM device 1 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.55 { iface PCM device 1 subdevice 1 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.56 { iface PCM device 1 subdevice 1 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.57 { iface PCM device 1 subdevice 1 name 'PCM Slave Active' value true comment { access read type BOOLEAN count 1 } } control.58 { iface PCM device 1 subdevice 1 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.59 { iface PCM device 1 subdevice 1 name 'PCM Slave Rate' value 44100 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.60 { iface PCM device 1 subdevice 1 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.61 { iface PCM device 1 subdevice 2 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.62 { iface PCM device 1 subdevice 2 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.63 { iface PCM device 1 subdevice 2 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.64 { iface PCM device 1 subdevice 2 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.65 { iface PCM device 1 subdevice 2 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.66 { iface PCM device 1 subdevice 2 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.67 { iface PCM device 1 subdevice 3 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.68 { iface PCM device 1 subdevice 3 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.69 { iface PCM device 1 subdevice 3 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.70 { iface PCM device 1 subdevice 3 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.71 { iface PCM device 1 subdevice 3 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.72 { iface PCM device 1 subdevice 3 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.73 { iface PCM device 1 subdevice 4 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.74 { iface PCM device 1 subdevice 4 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.75 { iface PCM device 1 subdevice 4 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.76 { iface PCM device 1 subdevice 4 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.77 { iface PCM device 1 subdevice 4 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.78 { iface PCM device 1 subdevice 4 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.79 { iface PCM device 1 subdevice 5 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.80 { iface PCM device 1 subdevice 5 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.81 { iface PCM device 1 subdevice 5 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.82 { iface PCM device 1 subdevice 5 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.83 { iface PCM device 1 subdevice 5 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.84 { iface PCM device 1 subdevice 5 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.85 { iface PCM device 1 subdevice 6 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.86 { iface PCM device 1 subdevice 6 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.87 { iface PCM device 1 subdevice 6 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.88 { iface PCM device 1 subdevice 6 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.89 { iface PCM device 1 subdevice 6 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.90 { iface PCM device 1 subdevice 6 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.91 { iface PCM device 1 subdevice 7 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.92 { iface PCM device 1 subdevice 7 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.93 { iface PCM device 1 subdevice 7 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.94 { iface PCM device 1 subdevice 7 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.95 { iface PCM device 1 subdevice 7 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.96 { iface PCM device 1 subdevice 7 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.97 { iface MIXER name 'PCM Playback Volume' value.0 255 value.1 255 comment { access 'read write user' type INTEGER count 2 range '0 - 255' tlv '0000000100000008ffffec1400000014' dbmin -5100 dbmax 0 dbvalue.0 0 dbvalue.1 0 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module v4l2loopback videodev media snd_aloop snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd input_leds serio_raw i2c_piix4 mac_hid pvpanic intel_rapl_perf parport_pc ppdev lp parport autofs4 psmouse virtio_net virtio_scsi !!ALSA/HDA dmesg !!--------------