https://bugs.freedesktop.org/show_bug.cgi?id=78453
--- Comment #91 from Luzipher luziphermcleod@yahoo.ie --- Thanks Kai, for your answers. I got it working now as well - in fact I'm typing from an accelerated xorg that's running for over an hour now.
I used: - agd5f's kernel (drm-next-3.17-wip), including the "handle ASIC_ProfilingInfo v3.1" patch - ucode from comment #81 copied to "/lib/firmware/updates/$(uname -r)/radeon" - xf86-video-ati with agd5f's patch from comment #81 - mesa git with glisse's patch from comment #86 - llvm git - xorg-server 1.16 - glamor 0.6.0 (is that still necessary with xorg 1.16 ?) - kernel command line parameters: radeon.dpm=0 drm.rnodes=1
I do not use any kind of login manager (gdm, kdm) for login, but plain old text-mode, then typing startx.
Both xfce4 and cinnamon start up and work, but at least in cinnamon I get massive flickering on mouse-overs or animated cursors (terminology). For example the background image occupies the whole text-area where I type this comment, whenever I move the mouse in or out (firefox). The same happens when I type, but obly for 2-3 lines of the surrounding text.using the mouse-wheel to scroll helps and corrects the display.
I am able to run glxgears. And I even tried World of Warcraft via wine, where I could get to the character selection screen (3D character is displayed), but upon entering the world, the machine crashed and I got the screen full of noise as output (similar to what happened before the fix on crashes).