title: nvidia-smi Failed to initialize NVML: GPU access blocked by the operating system
body: <p>when asking for </p>
  
  <pre><code>nvidia-smi
  </code></pre>
  
  <p>it gives this error:</p>
  
  <pre><code>Failed to initialize NVML: GPU access blocked by the operating system
  </code></pre>
  
  <p>other information:</p>
  
  <pre><code>$ nvcc --verion
  
  nvcc: NVIDIA (R) Cuda compiler driver
  Copyright (c) 2005-2015 NVIDIA Corporation
  Built on Mon_Feb_16_22:59:02_CST_2015
  Cuda compilation tools, release 7.0, V7.0.27
  </code></pre>
  
  <p>and also:</p>
  
  <pre><code> $ lspci | grep -i nvidia
  
   01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 425M] (rev a1)
   01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)
  </code></pre>
  
  <p>Having searched a lot in the internet I couldn't find a way to solve this problem.
  when I use ipython notebook and want to run Caffe framework it gives this error:</p>
  
  <pre><code>Check failed: error == cudaSuccess (38 vs. 0)  no CUDA-capable device is detected
  </code></pre>