So this is the third straight month that using Xv takes down the current stable build of the X server with AMD Catalyst installed.
GNOME Shell and Unity still have many known problems with it. (And they claim they support Ubuntu)
KDE still has to fall back to a backend that simulates OpenGL 1.x fixed functions or Catalyst explodes.
Catalyst still completely undoes the last five years of improvements to the Linux video driver stack.
It's still proprietary software that taints your kernel, and could expose you to security problems either because AMD doesn't care to fix them or because a government paid them to put them in. You install it and you no longer know what your computer is doing.
Did I miss anything? Do people install proprietary drivers because they don't have enough grief in their lives?
It's impossible for AMD or any proprietary driver maker to truthfully claim that their drivers support X and/or Linux (more so than X). It borders on false and deceptive advertising in my opinion. Even if they cared to do more than the half-assed work they are doing, free software moves too fast for them to keep up.