The re-installing of 'avucontrol' and 'libgtkmm-3.0-1v5' DO NOT HELP:
#
sudo apt-get --reinstall install libgtkmm-3.0-1v5 pavucontrol
Setting up libgtkmm-3.0-1v5:amd64 (3.16.0-2) ...
Setting up pavucontrol (3.0-3build1) ...
#
pavucontrol
pavucontrol: symbol lookup error: /usr/lib/x86_64-linux-gnu/libgiomm-2.4.so.1: undefined symbol: _ZN4Glib11VariantTypeD1Ev
The re-installing of 'avucontrol' and 'libgtkmm-3.0-1v5' DO NOT HELP: 3.0-1v5: amd64 (3.16.0-2) ...
#
sudo apt-get --reinstall install libgtkmm-3.0-1v5 pavucontrol
Setting up libgtkmm-
Setting up pavucontrol (3.0-3build1) ...
# x86_64- linux-gnu/ libgiomm- 2.4.so. 1: undefined symbol: _ZN4Glib11Varia ntTypeD1Ev
pavucontrol
pavucontrol: symbol lookup error: /usr/lib/