libx11-xcb-dev 2:1.6.4-3+deb9u1 / usr / lib / x86_64-linux-gnu / libX11-xcb.so

/usr/lib/x86_64-linux-gnu/libX11-xcb.so is in libx11-xcb-dev 2:1.6.4-3+deb9u1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1.0.0