[pulseaudio-discuss] Volume not adjustable

[Philipp Reuters]

Hi,
I can not adjust the output-volume anymore. neither in pavucontrol nor 
in gnome-settings. muting in pavucontrol works. setting the device's 
volume to 0 mutes, too. but when moving the slider to 1% i will have the 
full volume, as it would be set to 100%. Moving the slider around just 
keeps useless. any ideas, how to fix this?
Best regards,
Philipp