You don't want to select multiple graphics drivers.
Lets try this for your graphics card.
1. Go to
http://nvinject.free.fr/ and download Latest_NVinject.0.2.1.zip
2. Go to the
/System/Library/Extensions folder and remove existing graphic's kexts. (NVinject, NVkush, NVdarwin & Titan) You may want to back them up to a folder on your desktop or a USB thumb drive.
3. Unzip the file you downloaded and drop NVinject.kext into the /System/Library/Extensions folder.
4. Open Terminal and type the following to correct permissions to the Extensions folder.
Code:
sudo chmod -R 755 /System/Library/Extensions && chown -R root:wheel /System/Library/Extensions
5. Then type the following to repair permissions to your entire drive.
Code:
diskutil repairpermissions /
6. Then type the following to remove the Extensions.mkext cache file to force OSX to rebuild it with the new NVinject you installed.
Code:
sudo rm -R /System/Library/Extensions.mkext
7. Reboot with
-v -f
Check to see if QE/CI is supported.