Created attachment 87953 [details]
Xorg.0.log.old

Distribution: Arch Linux
ddx driver: xf86-video-ati 1.7.2.0
xorg-server 1.14.3
glamor-egl 0.5.1
kernel: 3.11.6 / 3.12.0-rc6

When I press the logout button in Xfce! entire DE becomes extremly unresponsive
for some 60sec and then I get the logout dialog. If I do a VT switch - logout
dialog becomes available instantly. 

After switching from glamor to EXA - everything works as expected, but I do get
a delay after logging in via lightdm, untill DE appears. If I switch the VT to
tty2 - tty1 gets activated automatically with DE loaded.

After compiling xf86-video-ati from git I cant even get the lightdm or X to
start, last message is

[     6.760] (==) RADEON(0): Silken mouse enabled

right before randr should get initialized (but this probably belongs to another
bug report and would benefit from bisecting.

Radeon kernel driver is built-in along PITCAIRN and TAHITI_uvd blobs. There is
no separate Curacao XT firmware available yet.

I'm attaching the Xorg.0.log file.