Mining bug with GTX-680 and HD 5870 in cgminer :/

[Tamis]

Hi guys !

I really hope someone will be able to help me with this problem.

I just added a HD 5870 (ATI) to my computer that already has a gtx-680 (nvidia). Having read that in windows 7 you can install both cards without a problem
I was happy to see instalation was not a problem. The latest beta catalyst drivers (AMD Catalyst™ 13.6 Beta2) instaled without a problem and both card are recognized by windows. I did not install any SDK since it was not necessary with the 13.6 beta2 with my HD 5850 that runs in another computer.

I though I could launch cgminer with default command line and the babies do their work, but I get an error message in cgminer :/

command line to launch cgminer : cgminer.exe -o http://stratum.bitcoin.cz:3333 -u user -p pass


I get the following errors :



and once I press enter :




I searched for an answer on the forum and the web and the only solution I found involves disabling the nvidia card, connecting the screen to the amd card and launching the miner

then enabling the nvidia card and switch the screen again. I have not tested this yet but it is not very practical.

There is also a similar post on this forum but no answer was given :  https://bitcointalk.org/index.php?topic=174091.0


I can do a cgminer -n dump if needed !


I hope someone can help me through this problem.


Tamis

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[ssateneth]

you can install both cards fine and game on them. cuda opencl fucks up the amd app opencl though. I had the exact same hardware, a gtx 680 and a 5870 and this happened to me too.

if you want to mine on both, you cant.

[Tamis]

Ok the gtx-680 only gave me 95mh/s or 113mh/s oced I can do without it.

How did you manage to make mining work on the AMD card only ?