7.1 Surround profile not available in pavucontrol

[Yuriy Yatsenko]

Binary package hint: pulseaudio

My card support 7.1 surround, but pavucontrol doesn't show such profile

ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alf 1639 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfebfc000 irq 19'
   Mixer name : 'Realtek ALC882'
   Components : 'HDA:10ec0882,1043e601,00100101'
   Controls : 43
   Simple ctrls : 24
Date: Sat Oct 31 04:19:59 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
NonfreeKernelModules: nvidia
Package: pulseaudio 1:0.9.19-0ubuntu4
ProcEnviron:
 LANGUAGE=ru_UA.UTF-8
 LANG=ru_UA.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic-pae
SourcePackage: pulseaudio
Uname: Linux 2.6.31-14-generic-pae i686

[David Santamaría Rogado (howl)]

This is because usually Realtek chips supports to be used un 6ch o 8ch mode and this is controlled by alsa and it's not implemented in PulseAudio. As you have Karmic you need to go to console and execute:
# alsamixer
Then you have to scroll to the Channel Mode Switch going all to the right, and when you are on it press up to set the 8 channel mode instead 6 channel.

Now press escape to exit from alsamixer and, you now need to restart PulseAudio, because it needs to detect the new mode. To accomplish this execute in the same terminal:
# pulseaudio -k

PulseAudio will be correctly killed and because system's default config will be re-spawned.

Now you should have the possibility to select 7.1 options in the profile.

[Yuriy Yatsenko (ytsnko)]

that works
thank a lot.

[Daniel T Chen (crimsun)]

Please use: apport-collect -p alsa-base 465944

[Yuriy Yatsenko (ytsnko)]

Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alf 1632 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfebfc000 irq 19'
   Mixer name : 'Realtek ALC882'
   Components : 'HDA:10ec0882,1043e601,00100101'
   Controls : 43
   Simple ctrls : 24
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu5
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=ru_UA.UTF-8
 LANGUAGE=ru_UA.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic-pae
Uname: Linux 2.6.31-14-generic-pae i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (gnome-settings-daemon:1679): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:1679): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (polkit-gnome-authentication-agent-1:1826): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:1813): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed