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i canot get my sound working on sony vaio vpceh28ff please help
!!################################ !!ALSA Information Script v 0.4.61 !!################################
!!Script ran on: Tue Sep 4 00:35:21 UTC 2012
!!Linux Distribution
!!------------------
BackTrack 5 R2 - Code Name Revolution 32 bit \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 10.04.3 LTS"
!!DMI Information
!!---------------
Manufacturer: Sony Corporation Product Name: VPCEH28FF Product Version: C106VQ91 Firmware Version: R0190Z9
!!Kernel Information
!!------------------
Kernel release: 3.2.6 Operating System: GNU/Linux Architecture: i686 Processor: unknown SMP Enabled: Yes
!!ALSA Version
!!------------
Driver version: Library version: 1.0.25 Utilities version: 1.0.22
!!Loaded ALSA modules
!!-------------------
!!Sound Servers on this system !!----------------------------
Pulseaudio:
Installed - Yes (/usr/bin/pulseaudio)
Running - Yes
ESound Daemon:
Installed - Yes (/usr/bin/esd)
Running - No
!!Soundcards recognised by ALSA
!!-----------------------------
!!PCI Soundcards installed in the system !!--------------------------------------
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 01:00.1 Audio device: nVidia Corporation HDMI Audio stub (rev a1)
!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!-------------------------------------------------------
00:1b.0 0403: 8086:1c20 (rev 04) Subsystem: 104d:908b -- 01:00.1 0403: 10de:0e08 (rev a1) Subsystem: 104d:908b
!!Modprobe options (Sound related)
!!--------------------------------
snd-atiixp-modem: index=-2 snd-intel8x0m: index=-2 snd-via82xx-modem: index=-2 snd-usb-audio: index=-2 snd-usb-us122l: index=-2 snd-usb-usx2y: index=-2 snd-usb-caiaq: index=-2 snd-cmipci: mpu_port=0x330 fm_port=0x388 snd-pcsp: index=-2
!!Loaded sound module options
!!---------------------------
!!ALSA Device nodes
!!-----------------
!!Aplay/Arecord output !!--------------------
APLAY
aplay: device_list:223: no soundcards found...
ARECORD
arecord: device_list:223: no soundcards found...
!!Amixer output !!-------------
!!Alsactl output
!!--------------
--startcollapse-- --endcollapse--
!!All Loaded Modules
!!------------------
Module btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 ppdev ipmi_msghandler nvidia arc4 ath9k mac80211 lp parport btusb bluetooth soundcore ath9k_common ath9k_hw uvcvideo ath psmouse mac_hid cfg80211 mei serio_raw videodev rts_pstor sony_laptop snd_page_alloc aufs usbhid hid video r8169
!!ALSA/HDA dmesg
!!--------------
[ 8.784204] lp: driver loaded but no devices found [ 8.805936] snd: Unknown symbol unregister_sound_special (err 0) [ 8.805939] snd: Unknown symbol unregister_sound_special (err 0) [ 8.805967] snd: Unknown symbol register_sound_special_device (err 0) [ 8.805970] snd: Unknown symbol register_sound_special_device (err 0) [ 8.904923] snd_timer: Unknown symbol snd_info_register (err 0) -- [ 8.905044] snd_timer: Unknown symbol snd_register_device_for_dev (err 0) [ 8.907127] snd: Unknown symbol unregister_sound_special (err 0) [ 8.907143] snd: Unknown symbol register_sound_special_device (err 0) [ 8.907409] snd_timer: Unknown symbol snd_info_register (err 0)