Problem with Crystal Semiconductor sound-driver in 4.1R

Problem with Crystal Semiconductor sound-driver in 4.1R

Post by Michael Bretterkliebe » Wed, 27 Sep 2000 15:08:00


I have an Crystal Semiconductor PCI-soundcard in my laptop. The Kernel
finds the soundcard, but
if i try to play mp3-files with amp, mpg123 or kmp3 , I get:
"Sep 26 07:59:05 bug /kernel: pcm0: play interrupt timeout, channel

On FreeBSD 4.0 it worked only with kmp3.

Kernel Bootmessages:
csa0: <Crystal Semiconductor CS4614/4622/4624 Audio accelerator/4280
Audio contr
oller> mem 0xe9000000-0xe90fffff,0xe8000000-0xe8000fff irq 5 at device
9.0 on pci0
pcm0: <CS461x PCM Audio> on csa0

Output from cat < /dev/sndstat:
FreeBSD Audio Driver (newpcm) Sep 11 2000 17:17:57
Installed devices:
pcm0: <CS461x PCM Audio> at irq 5 (1p/1r channels duplex)

P.S.: IRQ5 is not used from any other device



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1. Linux, Sound and the Crystal 4232 sound driver

Anyone have experience with the Linux sound system and the Crystal
4232 DSP chipset, specifically the "NewClear 3D" ISA sound card.

I have three problems, first is I get a terrible "hissing" noise
when I run linux and the kernel I built for sound support.

Second is I get a terrible "thunk" when sounds are played.

Anyone know of a book, FAQ or something that has up-to-date
details on exactly how the sound subsystem works in Linux?


Terry Fry
Baltimore, MD

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