I left the gpu-threads alone from the old scrypt file, where 280x needed 2, and most other cards 1. Should I change them all to 2? Or 4? Not sure how this works in X11. What about recommended intensities for these cards? Also, I didn't specify the difficulty in the password, and it's automatically been set at 0.160.
With the 280x and 270x you probably should try more gpu-threads, not sure about 7950, I'm running it myself with gpu-threads 1
Try higher intensities. 15-16 with gpu-threads > 1, 19-20 with gpu-threads 1.
You should get > 3 MH/s for the 280x, > 2.6 MH/s for the 7950.
Thanks. Your tips helped me as well.