Download your favorite Linux distribution at LQ ISO.
Go Back > Forums > Linux Forums > Linux - Software
User Name
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.


  Search this Thread
Old 06-02-2009, 04:33 PM   #1
Registered: Jun 2007
Posts: 44

Rep: Reputation: 15
ALSA and Surround40 driving me mad

PC config:

.asound empty
KDE 4.23, slackware 64 current (alsa 1.018)
4x speakers (front/rear)

aplay -L =

HDA NVidia, ALC883 Analog
Default Audio Device
HDA NVidia, ALC883 Analog
Front speakers
HDA NVidia, ALC883 Analog
4.0 Surround output to Front and Rear speakers
HDA NVidia, ALC883 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
HDA NVidia, ALC883 Analog
5.0 Surround output to Front, Center and Rear speakers
HDA NVidia, ALC883 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
HDA NVidia, ALC883 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
Discard all samples (playback) or generate zero samples (capture)

aplay -l =

card 0: NVidia [HDA NVidia], device 0: ALC883 Analog [ALC883 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: ALC883 Digital [ALC883 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0


Anything played through alsa "default" will be stereo and duplicated to the rear speakers. This is great for Amarok. This is stock config untouched.


5.1 through Kaffiene should be downmixed to 4.0 and sent out. At the moment I hear left and right duplicated to rear.

So where am I at with Phonon-xine.xine.conf.?...
  • Speaker mode to Surround 5.1,output to plughw:0,0 = kaffeine plays 5.1 sources so I can't hear centre or LFE in my current speaker config, amorak plays nothing not even stereo.
  • Speaker mode to Surround 4.0, output to plug:surround40:0, no programs work, all give up after 3 secs.

So surround40 and surround51 plugs don't seem to be working in ALSA.

I then tried:

>> speaker-test -c4 -Dsurround40
== Playback open error: -16,Device or resource busy

All i want is 5.1 downmixed to 4.0 and stereo duplicated to 4.0


freenode:#xine, #alsa, #phonon = nobody has a clue
alsa documentation on surround40 is CRAP.

Old 06-16-2009, 09:46 AM   #2
LQ Guru
Registered: Dec 2006
Location: underground
Distribution: Slackware64
Posts: 7,594

Rep: Reputation: 555Reputation: 555Reputation: 555Reputation: 555Reputation: 555Reputation: 555
Are your sound modules built as modules, or compiled static?

If they're modules, there *might* be some help:

First, try running `alsaconf` from a root console. If it detects your sound device, then it should update your .asound and .anames files.

Second, please post the output of `cat /proc/asound/card0/codec#0`

And third, what sort of plug stack is on the back of your motherboard? The place where the speaker jacks is-- is it a six-stack (two rows of 3 plugs) or a three-stack (one row of three plugs) etc.. Please post that.

Fourth: post the output of `modinfo -p snd_hda_intel` (assuming your sound driver IS modules. If it's built in, this won't work, but for the fine-tuning I may suggest, you do need the sound drivers in modular format.)

If you're still having trouble, and you post the above info, I'll try to help.




Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
applydeltaiso driving me mad!! Fredstar SUSE / openSUSE 4 04-30-2006 10:30 PM
kernel is driving me mad luqman Linux - Newbie 6 02-18-2005 05:05 AM
alsa installation driving me mad BBB Linux - Hardware 14 11-21-2004 05:18 PM
Samba driving me mad powadha Linux - Networking 4 06-10-2004 01:46 PM
Alsa driving me mad siphi Linux - Newbie 1 02-19-2004 08:21 PM > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 10:50 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration