The package was installed before, as a dependency of another package probably. Now that you've "manually" installed it, it is marked as such. This means, that e.g. "apt-get autoremove" will not consider this package to be not required anymore if you remove the package which pulled the (now) manual installed package in (xserver-xorg-input-synaptics).
I think this bug report should be used to a) clarify the output of apt-get b) add documentation about this to e.g. the man page of apt-get. I could not find anything about this feature there or in the "apt-doc" package ** Changed in: apt (Ubuntu) Status: Unconfirmed => Confirmed ** Summary changed: - set to manual installed. + Documentation: "<package> set to manual installed" -- Documentation: "<package> set to manual installed" https://bugs.launchpad.net/bugs/118728 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs