[PlanetCCRMA] Pd + PulseAudio?

Niels Mayer nielsmayer at gmail.com
Wed Mar 24 11:49:48 PDT 2010

On Tue, Mar 23, 2010 at 8:26 PM, Peter Kirn <peter at createdigitalmedia.net>wrote:

> Looking at AlsaMixer as you suggest, I definitely see the HDA Intel
> card. Master and PCM have volume levels; Headphone and Speaker show up
> but do not have mixer values.

> "control open "hw:intel" (No such device)

Cannot initialize driver"


Something is unexpectedly grabbing your hw:intel controls.

Consider that X/Gdm launch pulseaudio, so you can have those cute noises
when you mistype your password; it will therefore grab the hw:intel
controls. By totally removing pulseaudio, this can't happen, ever.

Consider also that these intel cards often include a semi-shared HDMI audio
portion e.g.

##  1 [SB             ]: HDA-Intel - HDA ATI SB
##                       HDA ATI SB at 0xfb7f4000 irq 16
##  2 [HDMI           ]: HDA-Intel - HDA ATI HDMI
##                       HDA ATI HDMI at 0xfb9fc000 irq 19

Perhaps also consider disabling the HDMI portion to prevent interference
from that (as well as not loading extra drivers that you're not using).

(from /etc/modprobe/*.conf: )
alias snd-card-1 snd-hda-intel
options snd-hda-intel index=1,2 enable=1,0

As a half-step towards preventing problems, you can also even w/ pulse
running, disable all system sounds and all error warning sounds. That causes
a whole class of sound system lockups in and of itself. However, once you've
gone that far, you might as well go all the way and follow my original

-- Niels
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