Originally Posted by jsbjsb001

I think we should just take a step back here to avoid anymore backtracking, and could you just confirm the following:

Did you add your user account to the "bumblebee" group - does the group exist?

Can you load your GUI?

If need be, you can just delete the /etc/X11/xorg.conf file, and run the "nvidia-xconfig" command again, to create a fresh one. But, please answer the above questions before you do that and reply back with the answers.

Originally Posted by ladam

Yes I added to my user account. Now doesn't load the GUI.

Originally Posted by jsbjsb001

Try deleting the /etc/X11/xorg.conf file, and then run the "nvidia-xconfig" command again.

If it still does not load the GUI;

Does it stop at the same place as before (GNOME Display manager) ?
(post the full output of the messages, of where it stops at)

Edit: Can you check if the "bumblebee" group exists?

Run the following command to check:
(the "bumblebee" group should be in the list if it has been created)

If it's not listed run the following command:

Originally Posted by ladam

Hello,

I reinstalled the drivers, and I diverged a bit from the manual, when I installed the nvidia-driver after this I run the nvidia-xserver settings, that asked to run nvidia-xconfig, and restart xserver but I didn't restart the xserver, but run nvidia-xconfig. After this I installed bumblebee, modified the mentioned files, and reboot the system.
Now when I run nvidia-xserver it seems work properly. Before I'd marked this thread solved I would check during the weekend that everything is OK, but now seems works.

Originally Posted by jsbjsb001

Good news!

And good idea to confirm over the weekend before marking the thread solved, but make sure you do as my signature below says - except the three links in it of course

Well done!

@Brains,

Thanks for your help in this thread as well, and don't slap yourself, I don't think I would have known about the "bumblebee" part, if where not for you. Thanks again!

Originally Posted by Brains

The problem is with the nouveau driver supplied by Xorg used with Nvidia optimus graphics.
At the Grub prompt you need to hit the "e" key to edit boot parameters and add "modeset nouveau.modeset=0" without the quotes to the kernel line. Typically there should already be the word quiet in quotes, leave the existing quotes and add a space after the word quiet then the stuff in blue written here.

After that you can hit the F10 key to boot it, once booted up you can edit /etc/default/grub file, probably as root or sudo, to add it permanetly, or install Nvidia primus or whatever is required by Centos for that graphics setup, or you need to do this every boot. An example of the /etc/default/grub file with this argument is in the code box below. After adding this to the /etc/default/grub file, you need to run the two commands in the next code box below as root or sudo and it should boot normally every time after.

An example of the appropriate section of /etc/default/grub with the argument added:
As for which packages you need to install to get the Nvidia proprietary graphics drivers, someone else will have to guide you. But you don't have to if you don't want to, you just won't have optimus capability (switching between Intel and Nvidia graphics)