Dual sound card configuration

business_kid · 08-12-2011, 01:26 PM

When I fitted my latest video card w/hdmi, I found I had another sound card. Lspci shows

Quote:

00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0)
01:00.1 Audio device: ATI Technologies Inc RV710/730

The ac97 thing is the standard crappy onboard card, and the ATI thing is the hdmi port of the video card, which wanted to muscle in and be the number 1 soundcard. The ac97 has the jack, so something had to be done, and I tried this, in /etc/modprobe.d/sound.conf

Code:

alias snd-card-0 snd-ac07-bus
alias sound-slot-0 snd-ac97-bus
alias sound-slot-1 snd-hda-intel
alias snd-card-1 snd-hda-intel
options snd-hda-intel model=ati

That stopped the 'power struggle', but the kernel keeps disabling the interrupt on the ATI card. It spits a notice on a terminal "disabling Interrupt . . . IRQ 17." I would like to be hdmi capable, just getting the same noise on both cards and ideally being able to set independent volumes. I will read if I can find anything relevant to read. I have looked at the alsa wiki, but it didn't inspire any fiddling, just left me with more questions than I had before I looked at it :-(. Any suggestions?

andrewthomas · 08-13-2011, 10:37 PM

Have you tried to compile the kernel with only support for the Ati hdmi?

Code:

CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_CODEC_HDMI=y

You only want to use the HDMI, correct?

business_kid · 08-14-2011, 02:36 AM

No, but I would like the same stuff on both soundcards.

I don't use spreakers normally, I have earphones on the ac97 card, but want the facility to play stuff over hdmi and hear what's going on there, as we are going hdmi capable.