The headphones volume is independent by the master volume, so my keyboard special keys won affect it. Is there a way to modify this behaviour?
You can change this behaviour by indicating in the file /proc/asound/card0/oss_mixer which is the volume channel. For example when I use internal laptop speakers I use VOLUME “Master” 0 else VOLUME “Headphone” 0 You can change this with a simple script like: #!/bin/bash STATUS=`less /proc/asound/card0/oss_mixer |grep VOLUME | awk -F ” ” ‘{print $2}’` if [ $STATUS = \”Master\” ] then echo “the volume is now controlled by the HEADPHONE” echo ‘VOLUME “Headphone” 0’ > /proc/asound/card0/oss_mixer else echo “the volume is now controlled by the MASTER” echo ‘VOLUME “Master” 0’ > /proc/asound/card0/oss_mixer fi This script has to be run sudo since you don’t have write acces to /proc/asound/card0/oss_mixer. But I agree with you it would be better to have a key that maps both channels.
