med_cezir@KAYA-LAPTOP1:~$ cat /etc/bumblebee/bumblebee.conf 
  # Configuration file for Bumblebee. Values should **not** be put between quotes 
   
  ## Server options. Any change made in this section will need a server restart 
  # to take effect. 
  [bumblebeed] 
  # The secondary Xorg server DISPLAY number 
  VirtualDisplay=:8 
  # Should the unused Xorg server be kept running? Set this to true if waiting 
  # for X to be ready is too long and don't need power management at all. 
  KeepUnusedXServer=false 
  # The name of the Bumbleblee server group name (GID name) 
  ServerGroup=bumblebee 
  # Card power state at exit. Set to false if the card shoud be ON when Bumblebee 
  # server exits. 
  TurnCardOffAtExit=false 
  # The default behavior of '-f' option on optirun. If set to "true", '-f' will 
  # be ignored. 
  NoEcoModeOverride=false 
  # The Driver used by Bumblebee server. If this value is not set (or empty), 
  # auto-detection is performed. The available drivers are nvidia and nouveau 
  # (See also the driver-specific sections below) 
  Driver=nvidia 
  # Directory with a dummy config file to pass as a -configdir to secondary X 
  XorgConfDir=/etc/bumblebee/xorg.conf.d 
   
  ## Client options. Will take effect on the next optirun executed. 
  [optirun] 
  # Acceleration/ rendering bridge, possible values are auto, virtualgl and 
  # primus. 
  Bridge=auto 
  # The method used for VirtualGL to transport frames between X servers. 
  # Possible values are proxy, jpeg, rgb, xv and yuv. 
  VGLTransport=proxy 
  # List of paths which are searched for the primus libGL.so.1 when using 
  # the primus bridge 
  PrimusLibraryPath=/usr/lib/x86_64-linux-gnu/primus:/usr/lib/i386-linux-gnu/primus 
  # Should the program run under optirun even if Bumblebee server or nvidia card 
  # is not available? 
  AllowFallbackToIGC=false 
   
   
  # Driver-specific settings are grouped under [driver-NAME]. The sections are 
  # parsed if the Driver setting in [bumblebeed] is set to NAME (or if auto- 
  # detection resolves to NAME). 
  # PMMethod: method to use for saving power by disabling the nvidia card, valid 
  # values are: auto - automatically detect which PM method to use 
  #         bbswitch - new in BB 3, recommended if available 
  #       switcheroo - vga_switcheroo method, use at your own risk 
  #             none - disable PM completely 
  #https://github.com/Bumblebee-Project/Bumblebee/wiki/Comparison-of-PM-methods 
   
  ## Section with nvidia driver specific options, only parsed if Driver=nvidia 
  [driver-nvidia] 
  # Module name to load, defaults to Driver if empty or unset 
  KernelDriver=nvidia-304 
  PMMethod=auto 
  # colon-separated path to the nvidia libraries 
  LibraryPath=/usr/lib/nvidia-current:/usr/lib32/nvidia-304 
  # comma-separated path of the directory containing nvidia_drv.so and the 
  # default Xorg modules path 
  XorgModulePath=/usr/lib/nvidia-304/xorg,/usr/lib/xorg/modules 
  XorgConfFile=/etc/bumblebee/xorg.conf.nvidia 
   
  ## Section with nouveau driver specific options, only parsed if Driver=nouveau 
  [driver-nouveau] 
  KernelDriver=nouveau 
  PMMethod=auto 
  XorgConfFile=/etc/bumblebee/xorg.conf.nouveau 
  

 
  med_cezir@KAYA-LAPTOP1:~$ cat /etc/bumblebee/xorg.conf.nvidia  
  6Section "ServerLayout" 
      Identifier  "Layout0" 
      Option      "AutoAddDevices" "false" 
      Option      "AutoAddGPU" "false" 
  EndSection 
   
  Section "Device" 
      Identifier  "DiscreteNvidia" 
      Driver      "nvidia" 
      VendorName  "NVIDIA Corporation" 
   
  #   If the X server does not automatically detect your VGA device, 
  #   you can manually set it here. 
  #   To get the BusID prop, run `lspci | egrep 'VGA|3D'` and input the data 
  #   as you see in the commented example. 
  #   This Setting may be needed in some platforms with more than one 
  #   nvidia card, which may confuse the proprietary driver (e.g., 
  #   trying to take ownership of the wrong device). Also needed on Ubuntu 13.04. 
     BusID "PCI:01:00:0" 
   
  #   Setting ProbeAllGpus to false prevents the new proprietary driver 
  #   instance spawned to try to control the integrated graphics card, 
  #   which is already being managed outside bumblebee. 
  #   This option doesn't hurt and it is required on platforms running 
  #   more than one nvidia graphics card with the proprietary driver. 
  #   (E.g. Macbook Pro pre-2010 with nVidia 9400M + 9600M GT). 
  #   If this option is not set, the new Xorg may blacken the screen and 
  #   render it unusable (unless you have some way to run killall Xorg). 
      Option "ProbeAllGpus" "false" 
   
      Option "NoLogo" "true" 
      Option "UseEDID" "false" 
      Option "UseDisplayDevice" "none" 
  EndSection 
   
  

 
  med_cezir@KAYA-LAPTOP1:~$ dpkg -l | egrep 'nvidia|bumblebee' 
  ii  bumblebee                                 3.2.1-90~preciseppa1                         NVIDIA Optimus support 
  ii  bumblebee-nvidia                          3.2.1-90~preciseppa1                         NVIDIA Optimus support using the proprietary NVIDIA driver 
  ii  nvidia-304                                304.116-0ubuntu0.0.1                         NVIDIA binary Xorg driver, kernel module and VDPAU library 
  ii  nvidia-304-updates                        304.116-0ubuntu0.0.1                         NVIDIA binary Xorg driver, kernel module and VDPAU library 
  ii  nvidia-common                             1:0.2.44.2                                   Find obsolete NVIDIA drivers 
  ii  nvidia-current                            304.116-0ubuntu0.0.1                         Transitional package for nvidia-current 
  ii  nvidia-settings                           331.20-0ubuntu0.0.1                          Tool for configuring the NVIDIA graphics driver 
   
  

# Configuration file for Bumblebee. Values should **not** be put between quotes 
   
  ## Server options. Any change made in this section will need a server restart 
  # to take effect. 
  [bumblebeed] 
  # The secondary Xorg server DISPLAY number 
  VirtualDisplay=:8 
  # Should the unused Xorg server be kept running? Set this to true if waiting 
  # for X to be ready is too long and don't need power management at all. 
  KeepUnusedXServer=false 
  # The name of the Bumbleblee server group name (GID name) 
  ServerGroup=bumblebee 
  # Card power state at exit. Set to false if the card shoud be ON when Bumblebee 
  # server exits. 
  TurnCardOffAtExit=false 
  # The default behavior of '-f' option on optirun. If set to "true", '-f' will 
  # be ignored. 
  NoEcoModeOverride=false 
  # The Driver used by Bumblebee server. If this value is not set (or empty), 
  # auto-detection is performed. The available drivers are nvidia and nouveau 
  # (See also the driver-specific sections below) 
  Driver=nvidia 
  # Directory with a dummy config file to pass as a -configdir to secondary X 
  XorgConfDir=/etc/bumblebee/xorg.conf.d 
   
  ## Client options. Will take effect on the next optirun executed. 
  [optirun] 
  # Acceleration/ rendering bridge, possible values are auto, virtualgl and 
  # primus. 
  Bridge=auto 
  # The method used for VirtualGL to transport frames between X servers. 
  # Possible values are proxy, jpeg, rgb, xv and yuv. 
  VGLTransport=proxy 
  # List of paths which are searched for the primus libGL.so.1 when using 
  # the primus bridge 
  PrimusLibraryPath=/usr/lib/x86_64-linux-gnu/primus:/usr/lib/i386-linux-gnu/primus 
  # Should the program run under optirun even if Bumblebee server or nvidia card 
  # is not available? 
  AllowFallbackToIGC=false 
   
   
  # Driver-specific settings are grouped under [driver-NAME]. The sections are 
  # parsed if the Driver setting in [bumblebeed] is set to NAME (or if auto- 
  # detection resolves to NAME). 
  # PMMethod: method to use for saving power by disabling the nvidia card, valid 
  # values are: auto - automatically detect which PM method to use 
  #         bbswitch - new in BB 3, recommended if available 
  #       switcheroo - vga_switcheroo method, use at your own risk 
  #             none - disable PM completely 
  #https://github.com/Bumblebee-Project/Bumblebee/wiki/Comparison-of-PM-methods 
   
  ## Section with nvidia driver specific options, only parsed if Driver=nvidia 
  [driver-nvidia] 
  # Module name to load, defaults to Driver if empty or unset 
  KernelDriver=nvidia-304 
  PMMethod=auto 
  # colon-separated path to the nvidia libraries 
  LibraryPath=/usr/lib/nvidia-304:/usr/lib32/nvidia-304 
  # comma-separated path of the directory containing nvidia_drv.so and the 
  # default Xorg modules path 
  XorgModulePath=/usr/lib/nvidia-304/xorg,/usr/lib/xorg/modules 
  XorgConfFile=/etc/bumblebee/xorg.conf.nvidia 
   
  ## Section with nouveau driver specific options, only parsed if Driver=nouveau 
  [driver-nouveau] 
  KernelDriver=nouveau 
  PMMethod=auto 
  XorgConfFile=/etc/bumblebee/xorg.conf.nouveau 
  

med_cezir@KAYA-LAPTOP1:~$ sudo service bumblebeed restart 
  bumblebeed stop/waiting 
  bumblebeed start/running, process 5096 
  

med_cezir@KAYA-LAPTOP1:~$ optirun glxgears 
  [  227.443574] [ERROR]Cannot access secondary GPU - error: X did not start properly 
   
  [  227.443637] [ERROR]Aborting because fallback start is disabled.

 
  sudo add-apt-repository ppa:elementary-os/daily 
  sudo apt-get update 
  sudo apt-get install elementary-desktop