Rasp: Volume sliders show "strange" values

[christianTF]

On Raspberry 1 the mixer shows strange values like -4500% (right slider), or only 0 to 2 % (left slider).

The mute-Button is working, and also on the right slider if you come about 100%, it seems to do something (but not 0-100% in correct scale).

PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)" NAME="Raspbian GNU/Linux" VERSION_ID="8" VERSION="8 (jessie)" ID=raspbian Python 2.7.9 Linux raspi 4.4.13+ #894 Mon Jun 13 12:43:26 BST 2016 armv6l GNU/Linux

[christianTF]

This seems to be an issue with wrong calculation: The range conforms to the devices' limits:

amixer cget numid=1

numid=1,iface=MIXER,name='PCM Playback Volume' ; type=INTEGER,access=rw---R--,values=1,min=-10239,max=400,step=0 : values=-367 | dBscale-min=-102.39dB,step=0.01dB,mute=1

[christianTF]

Hello,

it's me again. It seems that ALSA (or amixer) has a bug and does not accept negative values with cset. Therefore, the volume control with Raspberry does not work, as the driver defines a negative minimum value.

[JiriSko]

Fixed in #2.