The screen just turn off and I am not able to use it, Caffe-Segnet Cuda 8.0, cuddnn 5, webcam_demo.py

[khantoocool]

Issue summary

My caffe-segnet is build and working with cuda, But when I run it with
webcam_demo.py, It shows output for a while and then display is turned off, And The system is hang. I have to manually power off and turn on again.

I am unable to use segnet.

GPU = GTX 960
RAM = 4GB DDR3
CPU = i3 4th gen

Your system configuration

Operating system: Ubuntu 16.04
Compiler:
CUDA version (if applicable): 8.0
CUDNN version (if applicable): 5
BLAS: atlas
Python or MATLAB version (for pycaffe and matcaffe respectively): py27