Tweak x11-servers/xorg-server version 1.7.7_6,1
Tweak x11-drivers/xf86-video-radeonhd version 1.3.0_5
Tweak x11-drivers/xorg-drivers version 7.5.2
Update x11/sessreg to version 1.0.8
Update x11/xorg-apps to version 7.5.2_1