Alsamixer lacks several volume control channels
|||Ubuntu EeePC Kernel||
With the eee and eee-lean kernel version 126.96.36.199 there are only the channels PCM, LineOut, Capture and iSpeaker present in alsamixer and kmix. PCM controls the real headphone/lineout jack, while LineOut controls the real speakers. iSpeaker has no loudness control, only option with this one is mute or not. When muted in alsamixer the real speakers are muted.
So theret is no possiblity to control the global volume, only speakers and headphones seperately.
Using normal ubuntu kernels version 188.8.131.52 and 184.108.40.206 there are other channels (Master, Headphone, PCM, Front, Front Mic, Front Mic Boost, Capture, Input Source) present. I can't find a normal linux-image-
This occurs on a eee1000 with kubuntu 8.10, so no pulse-audio involved. Maybe it is related to bug #300474.