At Fri, 5 Sep 2008 10:25:36 +0200, Harald Radke wrote:

Hi there!

I noticed that using "alsamixer" several controls that are connected to sound input (ALC) are listed in the "playback" tab as well as in "capture", as well as certain playback controls as "bass" "trebel" also can be found under "capture". However, changing those controls' values only seem to take effect in the "playback" tab.

I was wondering if this is intentional or unintentional done by the WM8750 codec driver or an alsamixer "feature".

It's a known bug of alsa-lib mixer abstraction layer, introduced sometime ago with the rewriting of code base...

Takashi