I asked some ppl they ask me to reboot my laptop and go to the recover mode(kennel command line) and do the following things:
1.open /etc/X11/xorg.conf and change "nv" to "nvidia"
2.type following command:
sudo modprobe -r nvidia
sudo lrm-manager
sudo modprobe nvidia
then reboot the computer
I tried but the problem still there~~!!!!
