I'm having an issue mining scrypt with two GPU's: every time I start cudaMiner, one of them (not always the same) seems to return results which mostly doesn't validate. This is tested on Linux, using cudaMiner master, tested both on Z14x14 and T14x32. When I mine using a single card (selected with -d) all results validate... Any idea?
I also got validation issues since the newest version, before I used 12-18 without any problems. I ran autotune several times and always got the same kernel cfg K16x20 for VTC for my GTX770. Is that appropriate for my card?
Also just upgraded my video driver, that didn't change anything