Comment # 4 on bug 63599 from wojtek

I've just installed Gentoo. Issue still exists.

radeon-ucode-20130513
mesa-9.2-20130515 (without llvm)
kernel-3.9.2 (UVD disabled because kms with UVD don't work)
libdrm-2.4.44
xf86-video-ati-7.1.0 (without glamour)

any ideas or patches to test?