im gonna try this latest patch before trying a bisect, http://cgit.freedesktop.org/mesa/mesa/commit/?id=16b53005a7df4249fecb6641af0934c32181fdea if i were to guess i would say the offending patch might be http://cgit.freedesktop.org/mesa/mesa/commit/?id=ed03747e6a1a0655bfd0b5e4a52455fbd37f97c5 or something after this one. anyway more new later after i tested the above commit