Hi, I just wanted to report that with the latest git My Hashrate drops from 190 MH/s to 170 MH/s. When I check the git repository out from the date 3/3/2012 then I get again 190MH/s.
I use the default kernel and I use ubuntu 11.10 with a HD5770. What changes made the hashrate drop so drastically?
I'm experimenting. It looks like you are on SDK 2.6. Try -k diablo and see what that does to your hashrate.
And then try -k poclbm.