This seems to be a Mesa issue instead of Compiz or Unity as after updating Mesa to the latest upstream version (from PPA), I no longer get the corruption in Precise. Quantal doesn't seem to have this issue either anymore (it also has newer Mesa than the current Mesa default).
This seems to be a Mesa issue instead of Compiz or Unity as after updating Mesa to the latest upstream version (from PPA), I no longer get the corruption in Precise. Quantal doesn't seem to have this issue either anymore (it also has newer Mesa than the current Mesa default).