Code:
$uname -a
FreeBSD mybsd.zsoft.com 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan 3 07:15:25 UTC 2012
root@obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
$mixer
Mixer vol is currently set to 75:75
Mixer pcm is currently set to 75:75
Mixer speaker is currently set to 75:75
Mixer line is currently set to 75:75
Mixer mic is currently set to 0:0
Mixer cd is currently set to 75:75
Mixer rec is currently set to 75:75
Mixer igain is currently set to 0:0
Mixer line1 is currently set to 75:75
Mixer phin is currently set to 0:0
$pciconf -lv | grep -i audio
device = '82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller'
subclass = audio
subclass = audio
$dmesg | grep -i audio
pci1: <multimedia, audio> at device 0.0 (no driver attached)
$dmesg -a | grep -i pcm0
pcm0: <Intel ICH4 (82801DB)> port 0xe000-0xe0ff,0xe400-0xe43f mem 0xde081000-0xde0811ff,0xde082000-0xde0820ff irq 17 at device 31.5 on pci0
pcm0: <Avance Logic ALC101 AC97 Codec>
$cat /dev/sndstat
FreeBSD Audio Driver (newpcm: 32bit 2009061500/i386)
Installed devices:
pcm0: <Intel ICH4 (82801DB)> (play/rec) default
It seems ok but i indeed
cannot hear anything . Meanwhile the sound is OK using XP on the same box. so the hardware shouldnot have any problem.
FYI:
Code:
when i playing mp3 using mpc, the irq 17 indeed occurs:
[COvmstat -i
interrupt total rate
irq1: atkbd0 2740 3
irq12: psm0 26212 30
irq14: ata0 4831 5
irq15: ata1 24 0
irq16: uhci0+ 909 1
irq17: pcm0 23239 26
irq21: rl0 905 1
cpu0:timer 155696 178
Total 214556 246DE]
Any suggestion is appreciated !