I'm running Debian stable (sarge) up to date, stock kernel 2.6.8-2-686. The 
sound card is a CMI8738 (snd-cmipci) model 55.

I have a new sound-card (Trust item nr. 12950) on my system. The card works 
just fine as long as I don't try browsing my fat partition with mc. That's when 
the sound gets distorted and it has lower volume. The only way to get rid of 
this is to reboot. Reloading the module will not help. It might work if I first 
start mc and access the fat partition and then start the music. Using only the 
cli will not affect the sound. I even tried 'cd /mnt/music;ls' to get as close 
as possible to what mc is doing. Trying to diagnose this I split my big fat 
partition into 3, one of which I formated as ext2. Browsing this one and the 
second fat partition is ok, but the first time I hit enter "on top" of the 
first fat mount point in mc, the sound breaks.

I included only some basic info about the box as I'm not sure what might prove 
useful.

Here are register dumps:

Before:

C-Media PCI CMI8738-MC6 (model 55) at 0xe400, irq 5

00: 02 00 01 00
04: 50 0d 00 00
08: 03 00 09 00
0c: 00 00 01 08
10: c0 00 00 00
14: 00 00 80 00
18: 00 00 80 0c
1c: ff ff ff ff
20: 10 40 f8 00
24: 01 01 00 00
28: ff ff ff ff
2c: ff ff ff ff
30: 00 00 00 00
34: 00 00 00 00
38: 00 00 00 00
3c: 00 00 00 00

After:

C-Media PCI CMI8738-MC6 (model 55) at 0xe400, irq 5

00: 02 00 00 00
04: 50 1c 00 00
08: 03 00 09 00
0c: 00 00 00 09
10: c0 00 00 00
14: 00 00 80 00
18: 00 80 80 0c
1c: ff ff ff ff
20: 10 40 80 00
24: 01 0d 00 00
28: ff ff ff ff
2c: ff ff ff ff
30: 00 00 00 00
34: 00 00 00 00
38: 00 00 00 00
3c: 00 00 00 00

I'm not sure if related but aplay gives this error (before AND after):

ALSA lib timer_hw.c:269:(snd_timer_hw_open) extended read is not supported 
(SNDRV_TIMER_IOCTL_TREAD)

Thanks in advance for any suggestions
Andrei
-- 
If you can't explain it simply, you don't understand it well enough. (Albert 
Einstein)


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