downgrade_xorg

How To Downgrade Xorg - For Catalyst Drivers

1) Remove compiz related packages (if installed)

- emerald-themes
- emerald-git
- compiz-bzr

2) Remove open source drivers:

 # pacman -Rs $(pacman -Qq | grep \^xf86-video-)

3) Remove lib32-ati-dri

4) Add xorg115 to /etc/pacman.conf (above all repos):

[xorg115]
Server = http://catalyst.wirephire.com/repo/xorg115/$arch
## Mirrors, if the primary server does not work or is too slow:
#Server = http://mirror.rts-informatique.fr/archlinux-catalyst/repo/xorg115/$arch
#Server = http://mirror.hactar.bz/Vi0L0/xorg115/$arch

5) Import the repository key, key-id: 653C3094

 # pacman-key -r 653C3094
 # pacman-key -f 653C3094
 # pacman-key --lsign-key 653C3094

6) Downgrade the packages:

 # pacman -Syyuu
 
 If this fails, run:
 
 # pacman -Syy
 # pacman -Rns xorg-server
(others)
 # pacman -Rns $(pacman -Qq | grep \^xf86-input-)
 # pacman -Syu

7) Install Catalyst:

https://aur.archlinux.org/packages/catalyst-test/
cd catalyst-test; makepkg -sir

DO NOT REBOOT UNTIL Catalyst is completely installed

8) Blacklist radeon:

 # nano /etc/modprobe.d/radeon.conf
 ----
 blacklist radeon

9) Reboot :)

10*) Dual Monitor Fix

# amdcccle -- adjust scale
# nano /etc/ati/amdpcsdb
TVEnableOverscan=V1 
to 
TVEnableOverscan=V0

Logout or Reboot to test.

thanks!