https://bugs.freedesktop.org/show_bug.cgi?id=91880
--- Comment #36 from John Frei johann_frei@yahoo.de --- I assume that the second try (boot with unmodified kernel parameters) the module radeon was used. The only thing I can try is to compile the kernel without the 'amdgpu CIK parts', but this should not affect the radeon module, right?