well im sure everything is latest bit, i even did an emerge -C to the entire
graphical stack [xserver mesa llvm clang libclc cairo libx11 xcb glamor gtk+]
en re emerge with defaults cflags and the same things Qt4 works perfectly but
gtk apps crash X[i guess is cairo related]. so im sure is not software related
and since my 7770 can't reclock either i guess i got the short straw with this
brand.

so can you provide me some help to do what you ask in gentoo? or howto debug
the gpu properly? since gdb/valgrind/etc dont do anything against llvm[i guess
is cuz is getting loaded by mesa and the output goes to the gpu]

im using FireBurn overlay