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Old 06-11-2007, 02:59 PM   #1
Registered: May 2006
Location: Marlow, UK
Distribution: Slackware 12.2
Posts: 232

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Error opening mixer on Slack 10.2 with


I've recently rebuilt my laptop and now my sound doesn't work. When I add:

aumix -v 80 -w 80
to rc.local to set the volume, I get:

aumix: error opening mixer

001:e.2 Multimedia audio controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03)

ALSA device list:
  #0: Intel ICH6 with STAC9750,51 at 0xdfebfe00, irq 16
When I try to run aumix interactively, nothing happens.

The kernel config is exactly the same as before I rebuilt it, and the sound worked then (I took a copy of the .config file).

Have I forgotten to install something / missed something else?

Old 06-11-2007, 05:47 PM   #2
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Registered: Jan 2004
Location: NJ, USA
Distribution: Slackware, Debian
Posts: 5,852

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First of all, you do not need to manually load any volume settings from rc.local. Slackware already does that in the boot scripts using ALSA's configuration states. Once you get it setup the way you want, you save the state and then at boot the system will always load it back up.

aumix really has nothing to do with what you want right now. That is just a basic mixer application. You need to run "alsaconf", which probes the system for sound hardware, finds the proper modules, and then configures them to be loaded correctly at boot time.

After that, you can use a mixer (like aumix or alsamixer) and set the volume levels to where you want them. Finally, run "alsactl store" to save that as the default configuration.
Old 06-12-2007, 07:15 AM   #3
Registered: May 2006
Location: Marlow, UK
Distribution: Slackware 12.2
Posts: 232

Original Poster
Rep: Reputation: 30
Hi ms3fgx,

Thank you for your post.

My bad, I made a mistake. My (despite what I said) kernel wasn't configured correctly, and the OSS sounds and mixer weren't enabled as modules. Once I recompiled my kernel all was well.

Thanks for the tip about aumix / rc.local though :-)



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