sound - Surround 5.1 in Ubuntu 14.04? - Ask Ubuntu

here infos computer:

lspci | grep audio 00:05.0 audio device: nvidia corporation mcp61 high definition audio (rev a2) 02:00.1 audio device: nvidia corporation high definition audio controller (rev a1) 

and

 aplay -l  **** list of playback hardware devices ****  card 0: nvidia_1 [hda nvidia], device 0: alc662 rev1 analog [alc662      rev1 analog]    subdevices: 0/1    subdevice #0: subdevice #0  card 1: nvidia [hda nvidia], device 3: hdmi 0 [hdmi 0]   subdevices: 1/1   subdevice #0: subdevice #0 card 1: nvidia [hda nvidia], device 7: hdmi 0 [hdmi 0]   subdevices: 1/1   subdevice #0: subdevice #0 card 1: nvidia [hda nvidia], device 8: hdmi 0 [hdmi 0]   subdevices: 1/1   subdevice #0: subdevice #0  card 1: nvidia [hda nvidia], device 9: hdmi 0 [hdmi 0]   subdevices: 1/1   subdevice #0: subdevice #0 

and

lspci -v | grep -a7 -i "audio" 00:05.0 audio device: nvidia corporation mcp61 high definition audio (rev a2) subsystem: asrock incorporation device 3662 flags: bus master, 66mhz, fast devsel, latency 0, irq 22 memory @ dedf8000 (32-bit, non-prefetchable) [size=16k] capabilities: <access denied> kernel driver in use: snd_hda_intel 00:06.0 ide interface: nvidia corporation mcp61 ide (rev a2) (prog-if 8a [master secp prip])  02:00.1 audio device: nvidia corporation high definition audio controller (rev a1) subsystem: evga.com. corp. device 1313 flags: bus master, fast devsel, latency 0, irq 18 memory @ def7c000 (32-bit, non-prefetchable) [size=16k] capabilities: <access denied> kernel driver in use: snd_hda_intel 

i've set number of chanels 6

default-sample-channels = 6  

in etc/pulse/daemon.conf and

enable-lfe-remixing = yes 

but in sound settings don't have nothing concerning 5.1 audio.

ps. have 3 jacks in motherboard: mike, line out , line in.

in alsamixer have soud cards

0 hda nvidia

1 hda nvidia

edit 1

i thought resolved issue mounting sc-5.1-3 gembird sound card (~9 euro). recognized ubuntu without installing additional drivers. after this, choose analog output 5.1 sound settings.

but volume not work rear , center speackers, front. , every time enter in sound settings returns 2 speacker stereo mode.

i undo 2 steps above. put

 ; default-sample-channels = 6   ; enable-lfe-remixing = yes 

in etc/pulse/daemon.conf nothing changed:)

(the gembird drivers year 2000)

is there solution or should control volume rear , center bass only?

edit 2

i tried alsamixer after uninstalling pulseaudio. (the volume applet disappeared). did folowing tutorial http://www.hecticgeek.com/2012/01/how-to-remove-pulseaudio-use-alsa-ubuntu-linux/:

 sudo apt-get autoremove pulseaudio 

and software center installed gnome alsamixer.

i tested 5.1 sound (https://help.ubuntu.com/community/surroundsound)

 speaker-test -dplug:surround51 -c6 -l1 -twav 

it worked fine volume controls keyboard didn't work did pulse audio. didn't work on browsers in real 5.1.

then removed gnome alsa mixer , reinstalled pulseaudio via software center. took while(2 attempts) figure aut how install pulse audio. config worked me was:

pulseaudio sound server (pulseaudio) optional addons:

gstreamer plugin (gstreamer0.10-pulseaudio)

x11 module (pulseaudio-module-x11)

realtime policy , watchdog daemon (rtkit)

(these 3 checked default)

pulseaudio manager (paman)

(by cheking add-on, after installing pulse audio first 3 checked, hit apply changes , pulse manager installed next 3 add-ons software center: preferences, volume control , volume meter).

now have 2 ways of accessing sound settings:

1. the 1 talking earlier "sound" settings every time enter makes sound stereo.

2.and "pulseaudio volume control" did trick me.

anyway problem volume being altered in front speakers remains dow in volume control shoes volumes (for 6 channels) move @ once, except mute works 6 channels.

also system settings broken after first pulseaudio uninstall , repaired them @ end using how access system settings when ubuntu menu broken?.

also did not altered the

 ; default-sample-channels = 6   ; enable-lfe-remixing = yes 

in etc/pulse/daemon.conf after reinstalling daemon.conf has above 2 lines unaltered , 5.1 works testing vlc , *.ac3 file.

regarding browsers surround found does youtube support 5.1 surround sound? , stopped struggling.