Stuttering sound

[hornett]

Hi there, I've tried various distro's (MDK, Slack, Deb, RH) and I've finally settled with Fedora Core 1. The thing is that with all of these distro's, any sounds that are played stutter.

About the first second of any sound, played with any app, just gets looped over and over.

The card is an onboard CMI8738 and is being detected by the OS. I have tried installing drivers for it, but they did not change the situation).

Anybody know what I should do?

[JamminJoeyB]

Ah yes the joy on onboard sound.

Have you disabled pnp os in the bios? I had stuttering audio when I first started using linux becuase I didn't have pnp os disabled.

What kind of motherboad and chipset are you running?

Are you running OSS or ALSA?

ALSA my have better support for your card then OSS.

I ditched my onboard audio for an audigy 2 ZS and have been smiling ever since.

[mdwatts]

If this was sounds when playing cd's, I would advise you to do the following

hdparm -d1 -k1 /dev/hdd

in /etc/init.d/rc.local or boot.local and in etc/modules.conf add

options ide-cd dma=1

What modules are being loaded for your CMI8738? (I have the same soundcard)

# lsmod |grep snd

snd-pcm-oss 50976 0 (autoclean)
snd-mixer-oss 16184 0 (autoclean) [snd-pcm-oss]
snd-seq-midi 5184 0 (unused)
snd-seq-midi-event 4064 0 [snd-seq-midi]
snd-seq 44208 0 [snd-seq-midi snd-seq-midi-event]
snd-cmipci 24984 0
snd-mpu401-uart 4480 0 [snd-cmipci]
snd-rawmidi 16416 0 [snd-seq-midi snd-mpu401-uart]
snd-opl3-lib 7300 0 [snd-cmipci]
snd-hwdep 5472 0 [snd-opl3-lib]
snd-seq-device 4660 0 [snd-seq-midi snd-seq snd-rawmidi snd-opl3-lib]
snd-pcm 78432 0 [snd-pcm-oss snd-cmipci]
snd-page-alloc 7028 0 [snd-pcm]
snd-timer 17984 0 [snd-seq snd-opl3-lib snd-pcm]
snd 43204 0 [snd-pcm-oss snd-mixer-oss snd-seq-midi snd-seq-midi-event snd-seq snd-cmipci snd-mpu401-uart snd-rawmidi snd-opl3-lib snd-hwdep snd-seq-device snd-pcm snd-timer]
soundcore 4356 0 [snd]

[hornett]

OK, I've disabled P'n'P OS in the BIOS settings but this hasn't made a difference :(

What are OSS and ALSA and how do I know which I am currently running?

I tried running lsmod |grep snd but nothing was displayed.

[mdwatts]

Originally posted by hornett

I tried running lsmod |grep snd but nothing was displayed.

Just try

lsmod

by itself as you are likely using the standard kernel modules for the CMI8738, which would be

sound

and/or

soundcore

and

cmipci

which my previous distro version would use by default.