xserver-xorg-video-ati 1:7.5.0-1ubuntu2 (amd64 binary) in ubuntu vivid

 This package provides the 'ati' driver for the AMD/ATI Mach64, Rage128,
 Radeon, FireGL, FireMV, FirePro and FireStream series. This driver is
 actually a wrapper that loads one of the 'mach64', 'r128' or 'radeon'
 sub-drivers depending on the hardware.
 These sub-drivers are brought through package dependencies.
 .
 Users of Rage, Mach, or Radeon boards may remove this package only if
 they use Driver "r128", "mach64", or "radeon" in /etc/X11/xorg.conf
 instead of relying on autodetection.
 .
 More information about X.Org can be found at:
 <URL:http://www.X.org>
 .
 This package is built from the X.org xf86-video-ati driver module.