Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                                  Version                                             Architecture Description
+++-=====================================================-===================================================-============-===============================================================================
ii  libgl1-mesa-glx-lts-vivid:amd64                       10.5.9-2ubuntu1~trusty2                             amd64        free implementation of the OpenGL API -- GLX runtime
ii  xserver-xorg-lts-vivid                                1:7.7+7ubuntu3~trusty1                              amd64        X.Org X server