user6332: I wanted to do some mining with my IdeaPad Y580 which has a NVIDIA GeForce GTX660M and Intel HD 4000 integrated graphics, switched using Optimus. Laptop is running under Ubuntu 13.04.
The problem is i can't launch a miner (i tried cgminer and poclbm) on the laptop. I usually get the error like 'Nothing to mine on, exiting', or something similar.
The question is, how can I configure the miner/OpenCL to get this working.
Also I know that NVIDIAs/laptop graphics are ineffective in BTC mining, I just wanted to see how many Mhashes does my card get.

user141: Both the GeForce and the Intel HD 4000 should be OpenCL capable and possible to mine on.
The problem may be crippled drivers. I know HP and Dell make their "own" AMD drivers, meaning they take AMDs drivers and remove OpenCL support. Proper drivers from amd.com often refuse to install on those laptops. That's HP and Dell "helping you" by breaking your computer. Maybe Lenovo does the same with Nvidia drivers?
I would try to install the latest drivers from nvidia.com
For the Intel HD 4000 you could try getting drivers from http://www.intel.com/p/en_US/support/detect/graphics or even installing their OpenCL SDK from http://software.intel.com/en-us/vcsource/tools/opencl-sdk although I think that should not be necessary.

6332: <p>I wanted to do some mining with my IdeaPad Y580 which has a NVIDIA GeForce GTX660M and Intel HD 4000 integrated graphics, switched using Optimus. Laptop is running under Ubuntu 13.04.</p>

<p>The problem is i can't launch a miner (i tried cgminer and poclbm) on the laptop. I usually get the error like 'Nothing to mine on, exiting', or something similar.</p>

<p>The question is, how can I configure the miner/OpenCL to get this working.</p>

<p>Also I know that NVIDIAs/laptop graphics are ineffective in BTC mining, I just wanted to see how many Mhashes does my card get.</p>
 141: <p>Both the GeForce and the Intel HD 4000 should be OpenCL capable and possible to mine on.</p>

<p>The problem may be crippled drivers. I know HP and Dell make their "own" AMD drivers, meaning they take AMDs drivers and remove OpenCL support. Proper drivers from amd.com often refuse to install on those laptops. That's HP and Dell "helping you" by breaking your computer. Maybe Lenovo does the same with Nvidia drivers?</p>

<p>I would try to install the latest drivers from nvidia.com</p>

<p>For the Intel HD 4000 you could try getting drivers from <a href="http://www.intel.com/p/en_US/support/detect/graphics" rel="nofollow">http://www.intel.com/p/en_US/support/detect/graphics</a> or even installing their OpenCL SDK from <a href="http://software.intel.com/en-us/vcsource/tools/opencl-sdk" rel="nofollow">http://software.intel.com/en-us/vcsource/tools/opencl-sdk</a> although I think that should not be necessary.</p>
