!!################################ !!ALSA Information Script v 0.4.62 !!################################ !!Script ran on: Mon Jan 20 10:50:39 UTC 2014 !!Linux Distribution !!------------------ !!DMI Information !!--------------- Manufacturer: Red Hat Product Name: KVM Product Version: RHEL 6.4.0 PC Firmware Version: 0.5.1 !!Kernel Information !!------------------ Kernel release: 2.6.32 Operating System: GNU/Linux Architecture: i686 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: 1.0.21 Library version: 1.0.23 Utilities version: 1.0.23 !!Loaded ALSA modules !!------------------- snd_usb_audio !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [Device ]: USB-Audio - USB PnP Sound Device C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:01.2-2.1, fu !!PCI Soundcards installed in the system !!-------------------------------------- !!Advanced information - PCI Vendor/Device/Subsystem ID's !!------------------------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd-hda-intel: index=0 !!Loaded sound module options !!--------------------------- !!Module: snd_usb_audio async_unlink : Y device_setup : 0,0,0,0,0,0,0,0 enable : Y,Y,Y,Y,Y,Y,Y,Y id : ,,,,,,, ignore_ctl_error : N index : -1,-1,-1,-1,-1,-1,-1,-1 nrpacks : 8 pid : -1,-1,-1,-1,-1,-1,-1,-1 vid : -1,-1,-1,-1,-1,-1,-1,-1 !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Jan 20 19:48 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 24 Jan 20 19:48 /dev/snd/pcmC0D0c crw-rw---- 1 root audio 116, 16 Jan 20 19:48 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 33 Jan 20 19:48 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Jan 20 19:48 . drwxr-xr-x 4 root root 160 Jan 20 19:48 .. lrwxrwxrwx 1 root root 12 Jan 20 19:48 usb-C-Media_Electronics_Inc._USB_PnP_Sound_Device-00 -> ../controlC0 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Jan 20 19:48 . drwxr-xr-x 4 root root 160 Jan 20 19:48 .. lrwxrwxrwx 1 root root 12 Jan 20 19:48 pci-0000:00:01.2-usb-0:2.1:1.0 -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 0: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card 0 [Device] Card hw:0 'Device'/'C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:01.2-2.1, fu' Mixer name : 'USB Mixer' Components : 'USB0d8c:013a' Controls : 5 Simple ctrls : 3 Simple mixer control 'PCM',0 Capabilities: pvolume pswitch pswitch-joined penum Playback channels: Front Left - Front Right Limits: Playback 0 - 38 Mono: Front Left: Playback 38 [100%] [0.06dB] [on] Front Right: Playback 38 [100%] [0.06dB] [on] Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum Capture channels: Mono Limits: Capture 0 - 16 Mono: Capture 0 [0%] [0.00dB] [on] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] !!Alsactl output !!-------------- --startcollapse-- state.Device { control.1 { comment.access 'read write' comment.type BOOLEAN comment.count 1 iface MIXER name 'PCM Playback Switch' value true } control.2 { comment.access 'read write' comment.type INTEGER comment.count 2 comment.range '0 - 38' comment.dbmin -2837 comment.dbmax -6 iface MIXER name 'PCM Playback Volume' value.0 38 value.1 38 } control.3 { comment.access 'read write' comment.type BOOLEAN comment.count 1 iface MIXER name 'Mic Capture Switch' value true } control.4 { comment.access 'read write' comment.type INTEGER comment.count 1 comment.range '0 - 16' comment.dbmin 0 comment.dbmax 2381 iface MIXER name 'Mic Capture Volume' value 0 } control.5 { comment.access 'read write' comment.type BOOLEAN comment.count 1 iface MIXER name 'Auto Gain Control' value true } } --endcollapse-- !!All Loaded Modules !!------------------ Module xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables iptable_filter ip_tables x_tables snd_usb_audio snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_usb_lib snd_rawmidi snd_seq_device snd_hwdep snd soundcore hdlc cpufreq_conservative cpufreq_powersave cpufreq_userspace cpufreq_stats cpufreq_ondemand freq_table ipv6 deflate zlib_deflate ctr twofish twofish_common camellia serpent blowfish cast5 des_generic cbc aes_i586 aes_generic xcbc rmd160 sha256_generic sha1_generic hmac crypto_null af_key fuse usbhid hid lm85 dme1737 hwmon_vid loop virtio_balloon uhci_hcd ehci_hcd i2c_piix4 psmouse evdev serio_raw virtio_net i2c_core usbcore processor thermal nls_base button !!ALSA/HDA dmesg !!--------------