I to install the AMD Catalyst 15.3 driver in Fedora 22, since that is the only driver that supports the X11 server 1.17.
AMD released a new version of Catalyst, therefore, no longer need to use my driver, here are the link which is a guide to install Catalyst 15.7 on Fedora 22.
I'll leave my answer about installing Catalyst if any of you still want to use my driver.
I hope my driver were to have served during this time, I will continue making contributions to GNU/Linux.
I have some time trying to install Catalyst 15.3 on Fedora 22. Since the driver is only available in Ubuntu, I decided to try making my own driver (I did not programmed) and after several attempts I made it, I built one driver, who you can install generically on any GNU/Linux distribution.
The following instructions are for installing the driver on Fedora 21/22:
Update all your system correctly:
sudo dnf upgrade
and then restart your system.
Download the driver that I did it from here:
Uncompress the driver.
After having uncompressed, open a terminal in the folder you extracted and run the following commands:
sudo dnf install gcc gcc-c++ make kernel-devel kernel-headers dkms fakeroot
sudo cp /usr/include/linux/version.h /lib/modules/`uname -r`/build/include/linux/
sudo ./ati-installer.sh 15.20 --install
sudo aticonfig --initial
(Recommended) If you are using GNOME:
If you use GNOME + gdm, you will experience some problems with the driver, to correct these problems follow these instructions (this works in Fedora 21/22, I do not know if it works in other distributions):
Download the following script:
Then run the following commands in the folder where you downloaded the script:
dnf install lightdm
systemctl disable gdm
systemctl enable lightdm
6. After you have correctly followed the guide, reboot your system and enjoy the driver