libxxf86dga1 software package provides X11 Direct Graphics Access extension library, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libxxf86dga1
libxxf86dga1 is installed in your system.
Make ensure the libxxf86dga1 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libxxf86dga1 *
You will get with libxxf86dga1 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libxxf86dga1 |
| Version | 2:1.1.4-1 |
| Description | X11 Direct Graphics Access extension library |
| Sub Section | libs |