Radeon vga is not detected in Additional drivers

[Biji]

I'm using discrete VGA: Intel and Radeon (Lenovo E450)
but can't find radeon in Additional drivers to activate it, only Intel there

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: software-properties-gtk 0.96.20
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
Uname: Linux 4.4.0-15-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Mar 24 15:34:49 2016
InstallationDate: Installed on 2016-03-24 (0 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323.1)
PackageArchitecture: all
SourcePackage: software-properties
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1561390

[Tim Lunn (darkxst)]

fglrx/catalyst has been removed from 16.04 since it doesnt support Xorg 1.18 and AMD don't plan to support it for the LTS.

If you have a recent AMD card you will get support via the new AMDGPU/AMD Pro stack. http://www.phoronix.com/scan.php?page=news_item&px=AMD-Hybrid-Linux-Driver

Buts its probably not ready yet.