quake3 and via82cxxx,ac97 soundcard

Message

Morto · Post by **Morto** » Wed Feb 05, 2003 7:19 pm

I have a problem with quake3, my soundcard is a ac97 with via82cxxx kernel modules,it hangs at the start of a match,i have no problem with oss commercial drivers but i really need to buy them for play?Is there a solution for permit me to play it using this card?My kernel is 2.4.19 with loaded soundcore, ac97_codec, via82cxxx_audio, i use gnome 2 with esound,i've already tried to stop esd but trere was bno difference, anyone know the solutions?

snikkt · Post by **snikkt** » Thu Feb 06, 2003 12:23 am

OSS (free) drivers _should_ work but if you are having problems with
those you can try the alsa drivers.

/Snikkt

Spack · Post by **Spack** » Fri Feb 07, 2003 1:05 am

I have this card and I run quake3. I am using the alsa drivers with OSS emulation (so essentially I have support for both oss and alsa). Sound works perfectly.

See the alsa howto for information on how to set this up. Your alsa driver will be 'via82xx'.

STiAT · Post by **STiAT** » Fri Feb 07, 2003 8:48 am

the same over here. quake3 on a sb128pci (old one

)

Now, i just can say b careful if you have running sth. using the sound in the background (MP3-Player, or other things), or maybe BLENDER or things like that. Somehow they block the device, so that quake can't use it, then it starts hanging at boot... i got that problem several times when i started quake to fast after starting KDE too...

STi

Morto · Post by **Morto** » Sat Feb 08, 2003 12:19 am

i have installed alsa-driver modules and it works well with gmplayer,xmms,xmame by oss-emulation but quake3 still give problems, it says:

------- sound initialization -------
Could not mmap dma buffer PROT_WRITE|PROT_READ
trying mmap PROT_WRITE (with associated better compatibility / less performance
code)
/dev/dsp: Input/output error
Could not mmap /dev/dsp
------------------------------------
what can i do?

FINITE · Post by **FINITE** » Sat Feb 08, 2003 2:23 am

Ya, more than likely you has something running in the background that was using the sond card when Quake 3 was started. If you want to be able to listen to music and play the game at the same time you need to point quake3 to a fake sound device (like dsp1), you won't get sound in Quake3 by doing that though. I don't think that there are any linux drivers for that sound chip that support full duplex. Someone please correct me if im wrong.

Morto · Post by **Morto** » Sat Feb 08, 2003 3:14 am

i don't have nothing in background i tried those programs only for test, i don't know why but quake3 can't access to /dev/dsp, it's the only one that have this problem

DanBUK · Post by **DanBUK** » Wed May 28, 2003 3:53 pm

I am getting the same problem + I have no other backgroud sound processes going.
Anyone found a solution to this one??

col · Post by **col** » Sat Jun 14, 2003 11:25 am

I have the same problem with some programs....ET & xmms....other progs work fine ?

mantis · Post by **mantis** » Sat Jun 14, 2003 10:05 pm

The via82xx chipset does not support mmap mode by default. I have tried to get it working but had no luck. Spack says he has it running and i think it could be from alsa-oss installed too. Spack could you tell us how you got it working?

col · Post by **col** » Sat Jun 14, 2003 10:11 pm

I am using the OSS module....I fixed the problem by turning off kde arts

mantis · Post by **mantis** » Sat Jun 14, 2003 10:15 pm

OSS module from the kernel?

col · Post by **col** » Sun Jun 15, 2003 11:15 am

yes kernel 2.4.21 oss ... loading as a module

mantis · Post by **mantis** » Sun Jun 15, 2003 7:22 pm

Ah. Im trying to get it work properly with ALSA so hopefully i can use dmix. Ummm i tried it yesterday under 2.5.70 instead of having to install alsa-crap, i got mmap working with from commands from the Docs, it works for quake3 but for quake3-urt it freezes on the main screen. :\

Obz · Post by **Obz** » Mon Jun 16, 2003 1:04 am

i used use those OSS modules with q3, without problem, but as a suggestion you might like to try, in your ~/.q3a/baseq3/q3config.cfg, you can change the snddevice variable to /dev/dsp or /dev/dsp1 (there shouldnt be much running on dsp1). this'll at least determine whether there's something running in the background and hogging the dsp or not.

you should also be able to try other apps this way (i saw a mention of problems with xmms?)

i guess the other alternative is to install alsa, which seems to clear up most problems, and personally, i thought i could tell a difference (real or imagined) in the sound quality of my via,ac97 from using the OSS drivers to alsa (alsa sounded 'better' i thought).

good luck.
mike.

mantis · Post by **mantis** » Mon Jun 16, 2003 4:53 am

The error im getting is that MMAP isn't supported. So i have to pass some variables to alsa-oss files in /proc/asound/card0/pcm0*/oss and this will allow me to play things that require mmap, like using the alsa driver for xmms selecting mmap mode wont work.

empi · Post by **empi** » Wed Jun 18, 2003 11:53 am

I m getting the exact problem, though with a different card, cs46xx driver. No OSS, not even in alsa.

------ sound initialization -------
Could not mmap dma buffer PROT_WRITE|PROT_READ
trying mmap PROT_WRITE (with associated better compatibility / less performance
code)
/dev/dsp: Input/output error
Could not mmap /dev/dsp
------------------------------------

But from this thread I could not identify the solution. Seems like some settings work for people, same settings dont for others.
So what do you think,do I need to install dmix, do I have to install alsa-oss ?

empi · Post by **empi** » Wed Jun 18, 2003 8:06 pm

Code: Select all

ACCEPT_KEYWORDS=~x86 emerge alsa-driver
ACCEPT_KEYWORDS=~x86 emerge alsa-oss
ACCEPT_KEYWORDS=~x86 emerge alsa-util
ACCEPT_KEYWORDS=~x86 emerge alsa-xmms
kcminit arts 
 artsdsp -m quake3

solved the problem for me. The emerge part might be optional though.

quake3 and via82cxxx,ac97 soundcard

quake3 and via82cxxx,ac97 soundcard

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