https://lists.freedesktop.org/archives/xorg/2017-September/058905.html
commit c6d5ca07e096e7be1f578ffc393c959b5c629e3d Author: Lars Wendler <polynomial-c@gentoo.org> Date: Fri Sep 8 12:50:30 2017 x11-drivers/xf86-video-amdgpu: Bump to version 1.4.0 (bug #630328). Package-Manager: Portage-2.3.8, Repoman-2.3.3