NVIDIA Drivers

[msf004]

Summary:  
When I run any nvidia-settings command (such as nvidia-settings -a GPUPowerMizerMode=1 -a GPUFanControlState=1 -a GPUCurrentFanSpeed=90 -a GPUGraphicsClockOffset[3]=100) I get errors:

Code:

# sudo nvidia-settings -q GPUCurrentClockFreqs

** (nvidia-settings:18807): WARNING **: Could not open X display

Full Details:
Per other postings, I performed an "OpenSSH Server" install of Ubuntu 14.04.1.

I then d/l'ed the latest NVIDIA Drivers straight from the NVIDIA site:   NVIDIA-Linux-x86_64-367.35.run

I Ran:

Code:

apt-get install -y build-essential p7zip unrar unzip
bash NVIDIA-Linux-x86_64-367.35.run 
apt-get install linux-headers-4.4.0-31-generic build-essential libx11* libxnvctrl-dev

dpkg --remove-architecture i386
aptitude update && aptitude full-upgrade
sync && reboot

Then, I found a few posts about some nvidia-settings commands for headless systems:

Code:

nvidia-xconfig -s -a --force-generate --allow-empty-initial-configuration \
    --cool-bits=12 --registry-dwords="PerfLevelSrc=0x2222" \
    --no-sli --connected-monitor="DFP-0"

sed -i '/BusID.*/a \ \ \ \ Option         "Interactive" "False"' /etc/X11/xorg.conf

...and lastly...

Code:

nvidia-settings -a GPUPowerMizerMode=1 \
                -a GPUFanControlState=1 \
                -a GPUCurrentFanSpeed=90 \
                -a GPUGraphicsClockOffset[3]=100

However, anything I do with the nvidia-settings command results in errors:

Code:

# sudo nvidia-settings -q GPUCurrentClockFreqs

** (nvidia-settings:18807): WARNING **: Could not open X display

ERROR: The control display is undefined; please run `nvidia-settings --help` for usage information.

...or...

Code:

$ sudo nvidia-settings -a GPUPowerMizerMode=1 -a GPUFanControlState=1 -a GPUCurrentFanSpeed=90 -a GPUGraphicsClockOffset[3]=100

error: XDG_RUNTIME_DIR not set in the environment.

ERROR: The control display is undefined; please run `nvidia-settings --help` for usage information.

Any suggestions what I could have done wrong or what I could do to correct this?

Thank you for any feedback, your assistance is appreciated.