Bug#920696: Alsamixer: The volume can only be changed from 0, 9, 19, 30, 44, 60, 78, 100%

[積丹尼 Dan Jacobson]

Package: alsa-utils
Version: 1.1.7-1

In Alsamixer the volume can only be changed from 0, 9, 19, 30, 44, 60, 78, 100 
%.
No matter what key one presses, no matter which numbered keys.