Ubuntu 14.04 : Nvidia GT 740 m Drivers not working

Question

i have tried a lot of method to try running nvidia GT 740m on ubuntu 14.04 but none of them works . My laptop is hp pavilion 15n-209tx . Nvidia works fine on windows . I need serious help to overcome this problem or suggest me alternate ubuntu so that my wifi , bluetooth as well as nvidia card is fully supported on linux kernel . I don't know why this problem is there with bluez too >

Answer 1

Install the latest stable NVIDIA drivers for GT 740M from the repositories.

Highlight the Ubuntu entry in the GRUB boot menu and press the E key.
Add nouveau.modeset=0 to the end of the linux line - press F10 to boot.
On login screen press Ctrl+Alt+F1 ... enter user name and password ...

Now execute the following commands :

sudo apt-get update
sudo apt-get install nvidia-352 nvidia-prime
sudo reboot  

Update addressing that something went wrong during the installation

First uninstall all currently installed NVIDIA software you installed before.

Highlight the Ubuntu entry in the GRUB boot menu and press the E key.
Add nouveau.modeset=0 to the end of the linux line - press F10 to boot.

On login screen press Ctrl+Alt+F1 - enter user name and password - execute :

sudo apt-get purge nvidia*  
sudo reboot  

Now install the latest official NVIDIA drivers 358 from the GPU drivers PPA.

Highlight the Ubuntu entry in the GRUB boot menu and press the E key.
Add nouveau.modeset=0 to the end of the linux line - press F10 to boot.

On login screen press Ctrl+Alt+F1 - enter user name and password - execute :

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-358 nvidia-prime
sudo reboot  

Open NVIDIA X Server Settings (PRIME Profiles) to switch between graphics.