You are not logged in.

#1 2005-02-18 21:56:54

cactus
Taco Eater
From: t͈̫̹ͨa͖͕͎̱͈ͨ͆ć̥̖̝o̫̫̼s͈̭̱̞͍̃!̰
Registered: 2004-05-25
Posts: 4,615
Website

Sound problem with via82xx

Don't know if anyone else out there was having this problem with their sound.
When using alsa, I kept getting terrible sound with my soundcard. It uses the snd-via82xx module.

I did some web scratching, and finally turned up something useful.
I had to add this to my modprobe.conf file.

options snd-via82xx index=0 dxs_support=3

Now my sound is without the popping, hissing, and it doesn't sound like like your sitting in an old rusted out 72 gremlin, with the sound cranked up on an old pair of house speakers that someone wired into the back...
hooray!


"Be conservative in what you send; be liberal in what you accept." -- Postel's Law
"tacos" -- Cactus' Law
"t̥͍͎̪̪͗a̴̻̩͈͚ͨc̠o̩̙͈ͫͅs͙͎̙͊ ͔͇̫̜t͎̳̀a̜̞̗ͩc̗͍͚o̲̯̿s̖̣̤̙͌ ̖̜̈ț̰̫͓ạ̪͖̳c̲͎͕̰̯̃̈o͉ͅs̪ͪ ̜̻̖̜͕" -- -̖͚̫̙̓-̺̠͇ͤ̃ ̜̪̜ͯZ͔̗̭̞ͪA̝͈̙͖̩L͉̠̺͓G̙̞̦͖O̳̗͍

Offline

#2 2005-02-18 23:58:45

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Ahh... Thanks. lol I was wondering why my CDs were giving me so much weird squeeling crap...

Offline

#3 2005-03-26 17:56:13

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Okay... Sorry to wake up a dead thread, but:

This fix no longer works. On kernel 2.6.11, it makes snd-via82xx impossible to load, and may somehow screw up other sound modules too. No, I don't know why this is, but I was able to reproduce my module problems by implementing this fix and get rid of them by removing it.

Edit: Okay, it works... But it doesn't. Here's an update:

If you use alsaconf and add "index=0 dxs_support=3" to the "options snd..." line, you will get module problems.

If you specify the module, you will not get module problems, but you will get the same old staticky crap from your sound card.

Offline

#4 2005-03-26 20:34:13

iBertus
Member
From: Greenville, NC
Registered: 2004-11-04
Posts: 2,228

Re: Sound problem with via82xx

Try the following:

options snd-via82xx dxs_support=4 

Offline

#5 2005-03-26 20:47:50

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Still gives me static... Thanks anyway, though.

(Also tried dxs_support=2. That gives me static and produces some sort of weird ALSA error that doesn't seem to cause any problems...

Offline

#6 2005-03-26 21:47:55

puntmuts
Member
Registered: 2005-02-22
Posts: 138

Re: Sound problem with via82xx

I compiled OSS drivers for my card  (VT8233) because I could not get any sound out of it since kernel 2.6.11 something.  Let's hope it will be fixed in the alsa 1.0.9 release.


Out / Gone
Mirgrating all my machines off ArchLinux . No longer part of the ArchLinux community / users .
Done. Goodbye.

Offline

#7 2005-03-26 22:24:52

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

I'm getting sound out of it... I'm just getting a lot of annoying background "fuzz". Cactus's fix used to work, and now it doesn't do a damn thing.

Interestingly, the noise changes under certain conditions... It gets louder if I put an audio CD in my computer or mount a data CD (whether or not I play anything on the CD), and opening or closing the CD drive gives me a sort of drawn-out humming noise that is definitely from the sound system, not the drive itself. I wonder if the CD audio is screwing up or something?

Offline

#8 2005-03-27 11:52:19

puntmuts
Member
Registered: 2005-02-22
Posts: 138

Re: Sound problem with via82xx

I compiled and installed the alsa-driver 1.0.9-rc2 version and my sound is working again using alsadrivers. I had a different problem, but maybe it is a solution for others having troubles using this snd-via82xx driver as well.


Out / Gone
Mirgrating all my machines off ArchLinux . No longer part of the ArchLinux community / users .
Done. Goodbye.

Offline

#9 2005-03-27 18:01:37

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Thanks... Where do I get that? Anyone have a PKGBUILD?

(I suppose I could just download, compile, & install, but then I wouldn't be able to uninstall if it gave me trouble.)

Offline

#10 2005-03-27 19:32:02

puntmuts
Member
Registered: 2005-02-22
Posts: 138

Re: Sound problem with via82xx

Here is what I did:

Downloaded the driver tarball here
Unpacked the archive in /usr/src/
It creates an new directory
cd /usr/src/alsa-driver-1.0.9rc2
./configure && make && make install
depmod -a

This way it will overwrite your current alsa modules in the /lib/modules/`uname -r`/ directory.
Also I am using a custom vanilla 2.6.11.6 kernel, not a kernel package so all the configured sources are on the disc.

I think this way will conflict with the kernel if you are running a prepackaged kernel, since it is overwriting already existing kernelmodules. You could backup your current modules directory and restore it when it does not work for you or if needed for different reasons.


Out / Gone
Mirgrating all my machines off ArchLinux . No longer part of the ArchLinux community / users .
Done. Goodbye.

Offline

#11 2005-03-27 23:11:21

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Hmmm... The current alsa-driver package already overwrites modules, doesn't it? It doesn't seem to cause any trouble...

(Perhaps the sound modules in the MM kernel are better? Maybe I should use the MM instead of the stock kernel?)

Offline

#12 2005-03-27 23:28:33

puntmuts
Member
Registered: 2005-02-22
Posts: 138

Re: Sound problem with via82xx

The alsa-driver package is included in the 2.6 kernels. But the one on the alsa-project page is the most up to date version. I don't know what versions of alsa-drivers are in the -mm kerneltree.


Out / Gone
Mirgrating all my machines off ArchLinux . No longer part of the ArchLinux community / users .
Done. Goodbye.

Offline

#13 2005-03-28 00:41:26

cactus
Taco Eater
From: t͈̫̹ͨa͖͕͎̱͈ͨ͆ć̥̖̝o̫̫̼s͈̭̱̞͍̃!̰
Registered: 2004-05-25
Posts: 4,615
Website

Re: Sound problem with via82xx

removed the [fixed] portion of the subject, as it seems people are having trouble with this again.
:?


"Be conservative in what you send; be liberal in what you accept." -- Postel's Law
"tacos" -- Cactus' Law
"t̥͍͎̪̪͗a̴̻̩͈͚ͨc̠o̩̙͈ͫͅs͙͎̙͊ ͔͇̫̜t͎̳̀a̜̞̗ͩc̗͍͚o̲̯̿s̖̣̤̙͌ ̖̜̈ț̰̫͓ạ̪͖̳c̲͎͕̰̯̃̈o͉ͅs̪ͪ ̜̻̖̜͕" -- -̖͚̫̙̓-̺̠͇ͤ̃ ̜̪̜ͯZ͔̗̭̞ͪA̝͈̙͖̩L͉̠̺͓G̙̞̦͖O̳̗͍

Offline

#14 2005-03-30 00:33:20

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Okay... Temporary solution: reduce Master volume to less than 80%. Or, alternatively, turn down the CD audio.

The source of the noise, you see, is CD audio... The higher its volume is, the worse the noise is. I'm guessing this explains why the noise increases when you pop in a CD or when there's hard drive activity... Some sort of weird hardware problem. No, I have no idea how the bloody hell I can heard the HD and CD ROM drive motors via the CD audio... Ought to be physically impossible, but apparently it is. I'm guessing this is due to some sort of exquisitely bizarre hardware problem, as opposed to a software problem.

Offline

#15 2005-07-08 21:46:22

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Now solved. You see, setting Master too high distorts things, but lowering Master used to lower your volume... But in the newest version of ALSA (and the patched version that the MM kernel uses), volume is controlled by the PCM channel. So, you just use PCM to adjust volume, set CD as high or low as you want, and set Master to somewhere around 50 as per the instructions on alsa.opensrc.org. You can actually mute the Master channel without any problems for most things, but some apps (e.g. Grip) use it and will not work properly with Master muted, so it's probably better to just set it to 48 or 52 - as far as I can tell, there is no distortion at all below 55 anyway.

Offline

#16 2005-07-15 17:11:05

aquila_deus
Member
From: Taipei
Registered: 2005-07-02
Posts: 348
Website

Re: Sound problem with via82xx

I just noticed 2.6.12 has no problem with 100 Master and 100 PCM at all.

MB: A7V880

smile

Offline

#17 2005-07-15 18:49:02

Gullible Jones
Member
Registered: 2004-12-29
Posts: 4,863

Re: Sound problem with via82xx

Set CD to 100 as well and you'll start hearing weird noises.

Offline

Board footer

Powered by FluxBB