No sound with dmix

Luctus · n00b Joined: 19 May 2004 Posts: 15

I've got trouble getting software mixing to work.

I'm using the 2.6.11.7 kernel with ALSA support built as modules (no OSS at all) with some crappy embedded soundcard (from lspci) "CrystalClear SoundFusion Audio Accelerator" using the c46xx driver.

It works as it should without dmix, but when trying to do

aplay -D plug:dmix ding.wav

there's only silence for the duration of the soundclip in question and no error messages. Same thing happens with mplayer and xmms.

Some help would be much appreciated.

/J.

TheRAt · Veteran Joined: 03 Jun 2002 Posts: 1580

Have you looked at the HOWTO on the Gentoo-Wiki Site?
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Luctus · n00b Joined: 19 May 2004 Posts: 15

Yes, the HOWTO on gentoo-wiki.com and about 5 other ones

kanis · Posted: Mon May 02, 2005 1:04 pm Post subject:

Try running alsamixer and checking to see if either your Master or PCM channels are either zero'd out or muted. I've had an issue like that with my SB Live!.
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Luctus · n00b Joined: 19 May 2004 Posts: 15

As I said, I only get muted sound when trying to use the dmix plugin. Normal play trough the PCM device functions as it should, so it's not a problem with muted channels in the mixer.

For the record, I've tried unmuting and maxing out all the channels in the mixer with no luck.

trINItr0n_ · Posted: Tue Jun 28, 2005 11:09 pm Post subject:

hey, were you ever able to solve this ?

i have exactely the same problem.. also with c46xx driver (for Hercules Game Theater XP)

its really annoying, never got proper alsa-mixing working and thus still mixing with arts .. bleh

Genfoo' · Tux's lil' helper Joined: 24 Feb 2004 Posts: 112

If you mean cs46xx then there is an alternate driver for that chip that has hardware acceleration. I use it for my Hercules GameSurround Fortissimo II and it works great.

Luctus · n00b Joined: 19 May 2004 Posts: 15

Thank you!
I've been ripping my hair out over this since I got this computer over a year ago. Now it works perfectly playing multiple streams at once, doesn't even have to use dmix. Could be my imagination, but it also seems like audio quality increased. Big thanks again!

trINItr0n_ · Posted: Wed Jun 29, 2005 10:08 pm Post subject:

Great, works here too

always did a make oldconfig, so never noticed the experimental driver

thanks alot m8

Genfoo' · Tux's lil' helper Joined: 24 Feb 2004 Posts: 112

Something I forgot to mention is that the ALSA driver works better as a module. When I had it in the kernel I got alot of skips and pops, but that problem doesn't exist when it's a module.