Mixed channels ALSA and Soundmax AC97 -AD1985

[Paciente8159]

I there.
I have a Asus P4P800 motherboard that as a built in Soundmax AC97 - AD1985 5.1 system. I'm a newbie in Linux running Gloria on my PC and I'm having some trouble with the sound configuration.

The first problem was enabling the Suround with after some googling I solved thanks to this http://www.automaticable.com/2008-05-28 ... ntu-hardy/.

But when I run the

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

the channels are all mixed up. Rear speaker is outputs in the front speaker, the right is in center, etc...
The ALSA mixer also is mixed up. One column is controled in the mono, other in the master surround,... the point is nothing maches.

I tried to put some options in the alsa-base.config file from http://www.mjmwired.net/kernel/Document ... ration.txt, but no luck.

I tried to google for a solution but I had no luck (remaping channels, AD1985 ALSA bugs)

Here are some stats of my Gloria:

lspci -v

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00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
	Subsystem: ASUSTeK Computer Inc. Device 80f3
	Flags: bus master, medium devsel, latency 0, IRQ 17
	I/O ports at c000 [size=256]
	I/O ports at c400 [size=64]
	Memory at f7dff800 (32-bit, non-prefetchable) [size=512]
	Memory at f7dff400 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: Intel ICH
	Kernel modules: snd-intel8x0

lsmod | grep snd

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snd_intel8x0           37532  4 
snd_ac97_codec        112292  1 snd_intel8x0
ac97_bus                9856  1 snd_ac97_codec
snd_pcm_oss            46336  0 
snd_mixer_oss          22656  1 snd_pcm_oss
snd_pcm                82948  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_seq_dummy          10756  0 
snd_seq_oss            37760  0 
snd_seq_midi           14336  0 
snd_rawmidi            29696  1 snd_seq_midi
snd_seq_midi_event     15104  2 snd_seq_oss,snd_seq_midi
snd_seq                56880  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              29704  2 snd_pcm,snd_seq
snd_seq_device         14988  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd                    62628  18 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore              15200  1 snd
snd_page_alloc         16904  2 snd_intel8x0,snd_pcm

What can I do?

Thank's in advanced.

[igorzwx]

Hi Paciente8159!

I would install another Mint 7 in dual boot,
and try OSS4 there (Mint 7 = Ubuntu 9.04)
https://help.ubuntu.com/community/OpenSound

OSS4 seems to be a ideal solution for old (and ancient) boxes.
It may work on your box too.
Do not forget to download the Manual for OSS4 (2 pages, pdf)

See my howto for dual/multiple boot here:
http://forums.linuxmint.com/viewtopic.php?f=48&t=33657

[Paciente8159]

Ok I tried that but didn't worked (1st attempt lots of noise and 2nd no sound).

I reinstalled Mint 7 and I've managed to get the front and sides to work properly.

The remaining problem is that the rear columns are mute. It seems I can't switch the mic input to a column output.
When I unchecked this in the switches it keeps turning on.

Any ideas?

Thanks.