ERROR in Installation of CUDA on Ubuntu 14.04 LTS

I am using ubuntu 14.04 and I tried to install cuda on it,but after installation gets complete ubuntu goes into the low graphics mode.
I have tried it two times.What should I do?

Search around on this forum for similar issues. There are descriptions of what to do for some of them.

ok Thanks

In general the topic revolves around the NVIDIA driver install. With a bunch of questions around your exact platform (graphics adapters, display connections) and intent (GPU-accelerated grpahics, CUDA/Graphics interop, etc.) it’s possible to come up with a specific recommendation. But those questions and recommendations most likely can be found elsewhere on this board already.