Strange... I'm mining (or rather checking configs) with a 7950 and an R9-290 but it won't accept 8 for shaders multiplier. This is my batch, which works.
cgminer.exe --kryptohash -o 127.0.0.1:38912 -u xxx -p xxx --shaders 1792,2560 --shaders-mul 8,4
cgminer.exe --kryptohash -o 127.0.0.1:38912 -u xxx -p xxx --shaders 1792,2560 --shaders-mul 8,4
Swap your shaders-mul 4,8
Your going to get HW errors on the second card anyway until cgminer is worked on.
Nope! 7950 works with mul 8, 290 with 4 and only 4. Kinda strange. Tried 'tween numbers like 2048 for shaders, crashed, will try changing worksize. No big, just interesting and something of note. Now I was mining earlier, both cards, was running fine except for a couple of hardware errors on the 290, then the driver gave out.
