Anyone else experiencing completely broken sparse texture support on Nvidia Linux?
I tested my program on a GT 750m and k5000 with 331 drivers and 346 drivers and got the exact same behavior. basically when you do a glTexSubImage the driver loads the texture data incorrectly into the tiles of the sparse texture. If the image is the size of one tile, then it is uploaded fine, but if it exceeds 1 tile, the same (some arbitrary subset of) texture data is seemingly copied to each tile, rather than the driver correctly offsetting and mapping the correct texture data to the correct tile.
Super annoying since for a while i thought it was my code, but my tests and reading suggest otherwise (there is no mention anywhere of an application having to manage tiles).