On Wednesday 17 December 2008 21:18, Hugo Vanwoerkom wrote:
Hi,
How does one put a wait in the initialization of the pcspkr module?
I have 2 audio cards:
one the builtin card of the mobo
two a CA0106 PCI card.
They are supposed to be like this:
hugo@debian:/etc/udev$ cd /etc/modprobe.d/
hugo@debian:/etc/modprobe.d$ more sound
alias snd-card-0 snd-via82xx
options snd-via82xx index=0
alias snd-card-1 snd_ca0106
options snd_ca0106 index=1
That way I can play sound either through one card or the other depending
how on what monitor I am at like this:
case "$DISPLAY" in
:0.*) export ALSA_CARD=1
export ALSA_CTL_CARD=1
export ALSA_PCM_CARD=1
export MUS_ALSA_DEVICE="hw:1,0"
;;
:1.*) export ALSA_CARD=0
export ALSA_CTL_CARD=0
export ALSA_PCM_CARD=0
export MUS_ALSA_DEVICE="hw:0,0"
;;
* )
# Default option.
export ALSA_CARD=0
export ALSA_CTL_CARD=0
export ALSA_PCM_CARD=0
export MUS_ALSA_DEVICE="hw:0,0"
;;
esac
But on the latest Sid linux-image-2.6.26-1-686 I get a race condition
between the CA0106 and pcspkr: when pcspkr wins the CA0106 fails to
initialize:
Dec 17 13:48:22 debian kernel: [ 21.430714] VIA 82xx Audio
0000:00:11.5: VIA VLink IRQ fixup, from 5 to 11
Dec 17 13:48:22 debian kernel: [ 21.438860] PCI: Setting latency timer
of device 0000:00:11.5 to 64
Dec 17 13:48:22 debian kernel: [ 21.844739] input: PC Speaker as
/class/input/input6
Dec 17 13:48:22 debian kernel: [ 21.994233] Error: Driver 'pcspkr' is
already registered, aborting...
Dec 17 13:48:22 debian kernel: [ 22.039829] cannot find the slot for
index 1 (range 0-1), error: -16
Dec 17 13:48:22 debian kernel: [ 22.047800] CA0106: probe of
0000:00:0a.0 failed with error -12
Dec 17 13:48:22 debian kernel: [ 22.103001] Error: Driver 'pcspkr' is
already registered, aborting..
and the pcspkr becomes the second card:
hugo@debian:/$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: pcsp [pcsp], device 0: pcspeaker [pcsp]
Subdevices: 1/1
Subdevice #0: subdevice #0
Is there a way to make the pcspkr wait until after the CA0106 is
initialized?
This never happens with my own compiled kernel, just with the Debian
kernel and it does not always happen, just most of the time.
Anybody have an idea?
Hugo
Hi Hugo.
Interesting what you say about the pcspkr (pcsp) module. I'm have problems
getting sound from the 2.6.24-etchnhalf kernel using the 1.0.15 alsa driver.
I had problems with no sound from Etch's 2.6.18-6 kernel, with no sounds, but
upgrading the 1.0.12rc1 alsa driver to 1.0.15 got the sounds working.
I wonder if I have the same sort of problem as you, because I'm almost sure I
saw something in dmesg saying that the pcspkr module was already loaded
"skipping". This is with the 2.6.24-etchnhalf kernel.
<this line in particular from above>
Dec 17 13:48:22 debian kernel: [ 21.994233] Error: Driver 'pcspkr' is
already registered, aborting...
If you want rid of the pcspkr module, how about the following line
in /etc/modules.d/alsa-base.
install pcspkr /bin/true
That will send it to never never land
Not sure how the module is named, so you may have to look in lsmod for that.
It could be, pcspkr, or pcsp. change the line above to suit.
I'll try the same myself, when updates on another distro have finished. It may
fix my problem too.