I have never been able to get ALSA sound working with linux 2.5...
sound works perfectly with the OSS YMFPCI driver enabled, and though I
have been told that the code is the same across both ALSA and OSS I have
never been able to get ALSA working.
I have unmuted (of course), I have OSS API emulation enabled, I see
interrupts being fired, apparently the ALSA subsystem can see the card
(some /proc/asound/* output below). I have also looked at the settings
with the ALSA utilities, to double-check that ALSA is in fact
recognizing... everything YMF744, AC97, etc checks out.
My applications just look like they are playing sound, while only a
crack comes out of my speakers every once in a while.
Can anyone give me some pointers on how best to debug my problem? I
have enabled sound debug and verbose printk in the kernel, but I'm not
clear on how to use the debug facility.
[root@boolean john]# cat /proc/asound/oss/sndstat
Sound Driver:3.8.1a-980706 (ALSA v0.9.0rc1 emulation code)
Kernel: Linux boolean 2.5.16-alsa #2 Mon May 20 14:56:21 EDT 2002 i686
Config options: 0
Type 10: ALSA emulation
Yamaha DS-XG PCI (YMF744) at 0xc8826000, irq 11
0: YMFPCI (DUPLEX)
0: OPL3 FM
0: MPU-401 (UART)
7: system timer
[root@boolean john]# cat /proc/interrupts |grep 11:
11: 15128 XT-PIC YMFPCI, Toshiba America Info Systems
ToPIC95 PCI to Cardbus Bridge with ZV Support, Toshiba America Info
Systems ToPIC95 PCI to Cardbus Bridge with ZV Support (#2)
-o) J o h n W e b e r
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This archive was generated by hypermail 2b29 : Thu May 23 2002 - 22:00:20 EST