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Author
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Topic: Linux sound driver/mixer? (Read 2404 times)
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TigTigger
Zebranky food
 Offline
Posts: 41
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I've recently compiled uqm from CVS on my Red Hat 9 machine, and I'm playing it under Gnome.
uqm is working great, but, I have problems (not just with uqm) with esound, which is what Red Hat sets up by default for handling sound. Specifically, any sound always comes out lagged by about a half second. It very much detracts from melee, as one might imagine. 
I've Googled for help on this problem, and only come up with LOTS of other people with similar problems. No answers, though. I'm using an Ensonique card (es1371 driver) although I've had this problem with other cards.
Is there anything that I can do to troubleshoot and/or fix this, or does esd just suck for games? What does everyone else out there use for sound with uqm?
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Nic.
Guest
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esound is junk. The only thing esd has is a good client API for going boing at approximately the right time. Anything else is beyond it.
--Alan Cox
SDL has the ability to drive your audio hardware directly, so the best way to play is likely to kill esd before playing, and start it back up when you're done.
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TigTigger
Zebranky food
Offline
Posts: 41
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Thanks for your reply!
If Alan hates it so much, I wonder why Red Hat still uses it? :-/
Anyway, if I kill off esd and start up uqm, I get the following:
[darren@argo uqm]$ ./uqm
The Ur-Quan Masters v0.24 (compiled Aug 27 2003 20:06:40)
Saved games are kept in /home/darren/.uqm/save/.
Initializing SDL (pure).
SDL driver used: x11
SDL initialized.
Initializing Screen.
Set the resolution to: 640x480x32
Initializing SDL audio subsystem.
SDL audio subsystem initialized.
Initializing MixSDL mixer.
MixSDL using driver 'SDL_audio'
Unable to open audio: a101, No available audio device
Sound driver initialization failed.
This may happen when a soundcard is not present or not available.
NOTICE: Try running UQM with '--sound=none' option
If I start up esd, it works again.
Pardon my ignorance on the subject of sound and Linux- it's just something I've never got around to understanding.
Thanks again!
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TigTigger
Zebranky food
Offline
Posts: 41
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Thanks, that was the problem. uqm now runs without esd and with sound.
Except... I still have the sound lag! I guess the problem isn't with esd after all.
Not sure where to go looking from here. Like I said, I'm pretty sure the problem isn't with uqm, as some other apps do this too.
Here's the relevant (I think) loaded kernel modules:
es1371 30824 0 (autoclean)
gameport 3364 0 (autoclean) [es1371]
ac97_codec 14568 0 (autoclean) [es1371]
soundcore 6404 4 (autoclean) [es1371]
And from dmesg:
es1371: found chip, vendor id 0x1274 device id 0x1371 revision 0x08
es1371: found es1371 rev 8 at io 0xe800 irq 3
es1371: features: joystick 0x0
(haven't been able to get my joystick to work either, but, one thing at a time...)
And:
uname -a
Linux argo 2.4.20-19.9 #1 Tue Jul 15 17:18:13 EDT 2003 i686 i686 i386 GNU/Linux
Any further guesses anyone might have would be really appreciated. If none, any suggestions on where would be the best place to pursue this?
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TigTigger
Zebranky food
Offline
Posts: 41
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Well, I put a bug into Redhat's bugzilla quite some time ago, but it appears to have been bit-bucketed.
I'll try some newsgroups, and maybe try upgrading my kernel/modules.
Thanks everyone for their help.. if anyone comes across this and could suggest something, it would be great.
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