On Wed, 2007-03-07 at 18:12 -0500, Shem Multinymous wrote:

The ibm-acpi mixer also affects the BIOS-generated sounds (e.g.,
low-battery warnings) and PC speaker. So it useful even when the sound
card is unused or unsupported.

Don't those sounds go through the beep generator?  Most codecs use a beep generator for system sounds, that routes through the codec.

--
Tobin Davis <tdavis@dsl-only.net>