[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #7 from almos aaalmosss@gmail.com 2011-05-27 07:10:29 PDT --- (In reply to comment #6)

Similarly on RV530 I'm seeing frequent (but relatively minor) corruption in UT2004 with a number of maps which appears to be triangular blocks of old scenes (not textures AFAICT). However these were not from previously rendered frames at same location.

The skybox is rendered into those tiles (perhaps Z order is wrong?). It's very apparent on CTF-FaceClassic for example.