Setting up Sound Blaster Pro card
Ivan "Rambius" Ivanov
rambiusparkisanius at gmail.com
Thu Jan 26 19:57:53 PST 2006
I am trying to set up my sound card and I am finding some difficulties.
First, here is the description of the hardware. I use Acer TravelMate
4060 laptop with 512 MB RAM with Intel Chipset 915GM. The Audio
Section taken directly from the laptop's user guide is:
Audio system with two built-in speakers
Sound Blaster Pro and MS Sound compatible.
Second, the FreeBSD version is
$ uname -a
FreeBSD petya.myhome.westell.com 6.0-RELEASE FreeBSD 6.0-RELEASE #0:
Fri Jan 27 03:08:18 EET 2006
root at petya.myhome.westell.com:/usr/obj/usr/src/sys/CUSTOM20060127
The only difference of my custom kernel and the generic one is that I added
to configure my CD burner.
Next, here are my attempts of configuring the sound card. I read 
and I checked /usr/src/sys/conf/NOTES to find some clues which driver
should be loaded. I also googled about "Sound Blaster Pro" + FreeBSD
and found  and I concluded that I have to use snd_sbc, snd_sb8 and
possibly snd_sb16. I added the following three lines to
I then rebooted my machine and when it started I ran dmesg:
$ dmesg | grep sound
Preloaded elf module "/boot/kernel/sound.ko" at 0xc0ab82d8.
$ dmesg | grep snd
Preloaded elf module "/boot/kernel/snd_sb16.ko" at 0xc0ab8228.
Preloaded elf module "/boot/kernel/snd_sbc.ko" at 0xc0ab8384.
Preloaded elf module "/boot/kernel/snd_sb8.ko" at 0xc0ab8430.
Id Refs Address Size Name
1 13 0xc0400000 632618 kernel
2 1 0xc0a33000 4fc0 snd_sb16.ko
3 4 0xc0a38000 1d408 sound.ko
4 3 0xc0a56000 4934 snd_sbc.ko
5 1 0xc0a5b000 49ec snd_sb8.ko
6 16 0xc0a60000 568dc acpi.ko
7 1 0xc1e7a000 2000 blank_saver.ko
8 1 0xc1e90000 15000 linux.ko
I also started pciconv -lv and the relevant section about audio is:
none2 at pci0:27:0: class=0x040300 card=0x008f1025 chip=0x26688086
vendor = 'Intel Corporation'
device = '82801FB/FR/FW/FRW Intel High DefiNition Audio Controller'
class = multimedia
This makes me think that no driver is attached to the sound card.
cat /dev/sndstat shows
FreeBSD Audio Driver (newpcm)
Also when I enter kde, it says that device /dev/dsp cannot be found
and when I try to play an mp3 file with xmms, it shows a dialog titled
"Cannot open video".
I also tried with no success to build a custom kernel with by adding
Could you please help in finding the right configuration? If you need
more information I will be happy to provide it.
Thank you very much in advance
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