The system is running in low-graphics mode - In Ubuntu 16.04

We have NVIDIA GTX 1080 Ti grapics card and installed ubuntu 16.04. Before installing driver it is working default drvier fine. The movement we installed nvidia drvier I am getting this error:
The system is running in low-graphics mode

I have contacted nvidia support team and they are not able to do anything. They suggested to post in your site.

Regards,
Srinivas Reddy Enakolu

Please run nvidia-bug-report.sh as root and attach the resulting .gz file to your post. Hovering the mouse over an existing post of yours will reveal a paperclip icon.
https://devtalk.nvidia.com/default/topic/1043347/announcements/attaching-files-to-forum-topics-posts/

Hi,

I have attached the nvidia-bug-report.

Waiting for your reply.

Regards,
Srinivas Reddy Enakolu
nvidia-bug-report.log.gz (1.06 MB)

Looks like the onboard graphics is interfering. Please create /etc/X11/xorg.conf with contents

Section "Device"
    Identifier     "nvidia"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BusID          "PCI:3:0:0"
    Option         "AllowEmptyInitialConfiguration"
EndSection

If this doesn’t resolve the issue, please create a new nvidia-bug-report.log.

I have created as per your reply /etc/X11/xorg.conf
but still same problem
nvidia-bug-report.log.gz (1.06 MB)

Might be you’re hitting a bug with the 430 driver’s compat modules, how did you install the driver?
Please downgrade to the stable version 418.