Another question:
RX 580-8 rig. On 1st card of rig when monitor connected and trying to look video on youtube or play any videofile (even in bad quality f.e. 320p) video playback goes with freezes. On all other miners (Claymore, TR, PM) video plays without problems during eth mining.
It might be, because my miner has no pauses between kernel calls ... it has two threads to keep the card busy ... Will need to think about this.
I've got no positive results on RX 470 4GB rig even I tried all different miners including the new lol miner 1.16.
I haven't change the old blockchain driver and the result is still poor, max 10 Mh/s for the whole rig.
Now I'm waiting for ETC Thanos fork at the end of November.
Can you share more info e.g. driver and operation system? I am running my 580 4G with still 15 mh/s on ETC epoch 388 in Linux with 20.40 drivers.
Wrt this 6800 stuff: it is indeed strange using the same card 2x. Why this works and if we can replicate this to get the speedup on other systems: not yet sure. Still awaiting an own 6800 for tests, the card to test the miner was a remote one where a friend allowed me to check it out - and there it was only shown as one card.