No bass on Intel C200 Series Chipset

Hello all,

This is not Open Suse specific since I’ve never gotten the sound to work properly (no output on lower frequences) with any distribution on this hardware, but I hope maybe someone here can help me in the right direction to get this sorted. I mailed the alsa dev list about a year ago but nothing happened… The sound works correctly under windows, of course.

The output from the alsa-info script for my system is here:

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
Codec: Realtek ALC892

More details in the link above.

The machine is a Sager NP8130 (rebranded Clevo I think).
Any help on how I can proceed appreciated, even a dev guide how to hack the alsa so I can fiddle with it myself.


Which version are you using and was it a clean install?

As a** work around**, you could try installing ‘pavucontrol’ (from openSUSE OSS repos) and also 'pulseaudio-equalizer as packaged by packman packagers and then run ‘pulseaudio-equalizer’, followed (if necessary) by a reboot to restart pulse audio. Then start ‘pavucontrol’ and ‘pulseaudio-equalizer’ and play a multimedia application and attempt to tune its sound output with both pavucontrol and pulseaudio-equalizer.

I have some guidance on using pavucontrol here: and there is an old surround sound thread of mine here: that may have some tests you could try.

Good luck with your efforts, and if you come up with a solution, please post and let us know.

which version of what? i’m using opensuse 12.3 64bit, all the details are in the link i posted. it’s a clean install.

thanks for the tip, I fiddled with the pulse equalizer but it can’t do much since there really are no output on lower frequencies. I think the driver is really not communicating with this device correctly, the NP8130 comes with two speakers and a subwoofer on the bottom. The subwoofer is dead silent AFAICT.

This page is relevant to my problem, but it seems nothing came out of it: