(Guide) Installing Nvidia + Bumblebee + CUDA for Optimus enabled Laptops

[k0desys]

Hey guys i do encounter a problem with my CUDA installation everything seems to work fine but /usr/local/cuda-7.5 is not there also examples and such are missing. optirun gives me output but i have to restart bumblebeed service in every reboot. So my first question is to resolve bumblebeed service problem and second is about CUDA output given below whether or not it is a problem.

-------------------------------------------------------------
Do you accept the previously read EULA? (accept/decline/quit): accept
You are attempting to install on an unsupported configuration. Do you wish to continue? ((y)es/(n)o) [ default is no ]: yes
Install NVIDIA Accelerated Graphics Driver for Linux-x86_64 352.39? ((y)es/(n)o/(q)uit): no
Install the CUDA 7.5 Toolkit? ((y)es/(n)o/(q)uit): yes
Enter Toolkit Location [ default is /usr/local/cuda-7.5 ]: 
Do you want to install a symbolic link at /usr/local/cuda? ((y)es/(n)o/(q)uit): y
Install the CUDA 7.5 Samples? ((y)es/(n)o/(q)uit): y
Enter CUDA Samples Location [ default is /root ]: /usr/share/CUDA/
Error: unsupported compiler: 6.1.1. Use --override to override this check.
Missing recommended library: libXi.so

Error: cannot find Toolkit in /usr/local/cuda-7.5

===========
= Summary =
===========

Driver:   Not Selected
Toolkit:  Installation Failed. Using unsupported Compiler.
Samples:  Cannot find Toolkit in /usr/local/cuda-7.5

The problem of Bumblebeed service not autostarting is due to kali network policy.
Kali wil by default disallow autostarting services. Have a look at the link for the solution

http://docs.kali.org/policy/kali-lin...rvice-policies