Post
Topic
Board CPU/GPU Bitcoin mining hardware
Topic OP
Unable to detect second GPU in Ubuntu.... tried a dummy plug
by
bobbobobbo
on 22/05/2013, 20:22:10 UTC
Not sure whats going on.... 1 card works fine, yet the second I add another 7950 I get this readout from CGminer:

 [2013-05-17 16:46:01] ADL found less devices than opencl!                   
 [2013-05-17 16:46:01] There is possibly more than one display attached to a GPU                   
 [2013-05-17 16:46:01] Use the gpu map feature to reliably map OpenCL to ADL                   
 [2013-05-17 16:46:01] WARNING: Number of OpenCL and ADL devices did not match!                   
 [2013-05-17 16:46:01] Hardware monitoring may NOT match up with devices!       

and can't get any temp/speed monitoring. I've tried this dummy plug guide here http://blog.zorinaq.com/?e=11 yet still have no luck.... frustrating.

Any ideas?

I have export display=:0, gpu_max_alloc_percent =100, and gpu_sync_objects =1 before my cgminer input.