Comment # 80 on bug 110214 from Michel Dänzer

(In reply to Diego Viola from comment #79)
> Which might indicate this being a freetype problem?

No. If it was a FreeType problem, R600_DEBUG=nodpbb or
MESA_EXTENSION_OVERRIDE="-GL_NV_texture_barrier" couldn't work around it.

Changing the xterm configuration just happens to avoid the problem somehow.