Shrinking Global memory after update nvidia driver from 352.93 to 367.57

Hi.

Recently, Ubuntu 14.04 had a kernel update and accordingly nvidia driver also updated fro 352 to 367.

That update is automatically done with software updater of Ubuntu.

Then, GPU’s global memory shrink from 2GB originally to 0.9GB.

I checked it from both nvidia-smi and device query of cuda samples.

I’m using notebook PC Lenovo Thinkpad T-450 and the PC contains nvidia GPU GeForce 940M.

And, I use cuda-7.5 and caffe.

I doubt that it is bug of nvidia driver.

How can reuse all global memory of GPU?