I'm a little new to LTC mining, but I figured I'd try it out. I have a Gigabyte 7970 GHz Edition. I'm using 12.8 drivers with CGMiner 3.3.1.
I can sometimes tweak it to over 550KH/s, but it's usually less than that. I've tried all sorts of combinations of TC, LG, worksize, threads, etc. Nothing really works. I finally just set it to the CGMiner defaults with TC of 8192. I heard for GHz cards, 8192 is best. When I'm mining now, I'm only getting 522KH/s. Kinda sucky.
Well last night I was sick of messing with it, so I left it alone at 522KH/s and went to bed. I got up this morning, and woke my computer up, and it said my average had risen to >715KH/s. Huh? My WU: rate was also significantly higher as well, so it's not misreporting. It said my 5s average was back down into the low 500s, and my overall average of 715 was now slowly dropping.
So my question is this: Why is CGMiner gettting good results when the screen is off, but pretty crappy results when it's on? And how do I change this so it's mining at >700KH/s all the time?
