Public bug reported:
I upgraded to Karmic and I got 5.1 working with surround effects.
After a further upgrade the 5.1 stopped working, and the configurations didn't
change.
This is my Audio device:
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
Audio Controller (rev 01)
based on this codec: Realtek ALC662 rev1
I've always used this option to load the module: model=3stack-6ch
I am not able to state where is the problem: pulseaudio, alsa, whatever
else.
I tried to use the command "speaker-test -Dplug:surround51 -c6 -l1
-twav" and I can clearly state that 5.1 is not working.
Please let me know how can I give you much more information.
Here is the output of cat /dev/sndstat:
Sound Driver:3.8.1a-980706 (ALSA v1.0.20 emulation code)
Kernel: Linux yasna 2.6.31-13-generic #44-Ubuntu SMP Sat Oct 10 15:27:55 UTC
2009 i686
Config options: 0
Installed drivers:
Type 10: ALSA emulation
Card config:
HDA Intel at 0x902c0000 irq 22
Audio devices:
0: ALC662 rev1 Analog (DUPLEX)
Synth devices: NOT ENABLED IN CONFIG
Midi devices: NOT ENABLED IN CONFIG
Timers:
31: system timer
Mixers:
0: Realtek ALC662 rev1
** Affects: ubuntu
Importance: Undecided
Status: New
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audio surround 5.1 stopped working after updating
https://bugs.launchpad.net/bugs/450336
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