Ubuntu 16.04 LTS will not support the AMD Catalyst proprietary graphics driver for AMD GPUs (Graphics Processing Units), which is known to the community as the fglrx driver. Instead, Canonical recommends users using the open-source Radeon and AMDGPU alternatives.
According to the Ubuntu developers, who go to all the trouble of backporting the latest kernel code from the upstream Linux 4.5 kernel branch for the open-source AMDGPU and xf86-video-ati AMD Radeon graphics drivers into Ubuntu 16.04 LTS’ Linux kernel packages, AMD has put a lot of effort into the video drivers.
“The fglrx driver is now deprecated in 16.04, and we recommend its open source alternatives (radeon and amdgpu). AMD put a lot of work into the drivers, and we backported kernel code from Linux 4.5 to provide a better experience,” reads the preliminary release notes for Ubuntu 16.04 LTS.
Submitted by: Arnfried Walbrecht