On Wed, Jun 10, 2015 at 12:57 AM, Enrico Tagliavini <enrico.tagliavini@gmail.com> wrote:
If you look at AMD website [1] you can read they support xorg-server
up to version 1.16. Xorg 1.17 was released on February 4th, 4 months
ago. Ubuntu 15.04 has a pre-alpha version of fglrx supporting 1.17
(keep in mind AMD and Canonical have an agreement for this, all other
distros do not have this privilege, still they managed to get blamed
for late Xorg updates [3]). Usually it takes many months to get
official support. Rolling distribution with up to date components such
as Arch Linux share the same problem as Fedora [4]. As you can see a
user is volunteering to maintain a backport repository with older
version of Xorg just for the use with the AMD proprietary driver.

For the sake of comparison Nvidia added support for Xorg 1.17 on
December 8th 2014, two full months before Xorg 1.17 release.

Sorry for the off topic. I think this information is worth to share,
help users a lot avoiding unexpected pain.

Yikes.