[alsa-devel] Fwd: Smart 5.1 function not working on VIA VT1708S with *three* jacks on mainboard

[Viliam Kubis]

Please at least reply, or guide me through the process to fix this bug!

------- Forwarded message -------
From: "Viliam Kubis" <viliam.kubis at gmail.com>
To: alsa-devel at alsa-project.org
Cc: lydiawang at viatech.com.cn, loganli at viatech.com.cn, tiwai at suse.de
Subject: Smart 5.1 function not working on VIA VT1708S with *three* jacks  
on mainboard
Date: Thu, 01 Jul 2010 00:02:30 +0200

Hello, for quite some time the "Smart 5.1" function in alsa is not working
properly when motherboard has only 3 audio jacks.

Me and Raymond on alsa-bugtracker have been trying to solve the issue for
a long time but were unsuccessful.

Please take a look at this alsa bug ticket:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4895

It contains A LOT of info on the problem + steps that we tried, which
included patching the code.

Synthom : NO "Surround" , "Center" and "LFE" Control and switch with
VT1708S on a motherboard with 3 audio jacks
Also NO surround sound.

speaker-test -c 4 -t wav -Dsurround40

Channels count (4) not available for playbacks: Invalid argument
Setting of hwparams failed: Invalid argument

Please advise if you can.

Thank you
Best Regards
Viliam Kubis


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