https://bugs.freedesktop.org/show_bug.cgi?id=62441
--- Comment #5 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #4)
I am yet to revert the driver from fglrx and provide the info requested (dmesg output and xorg log), but if the radeon driver is fine (as I could atest from Live USB Stick), where is the issue? A brand new installation with functional/accelerated OpenGL should be able to run 64 bits games as well as 32 bits games, right? Where is the issue, then? In the ditribution? In the packaging? Are there missing packages that I should instal manually?
Make sure your distro provides (or you have installed) the 32 bit multi-arch packages to support 32-bit apps on a 64bit system.