https://bugs.freedesktop.org/show_bug.cgi?id=54877
--- Comment #2 from Alex Deucher agd5f@yahoo.com 2012-09-13 21:30:33 UTC --- Created attachment 67121 --> https://bugs.freedesktop.org/attachment.cgi?id=67121 fix
This fixes it. I need to find out how the quant mode affects the range of values.