Login screen에서 화면 멈춤 현상 해결 방법.

• How to solve screen freeze on login screen.

1. First of all, You have to install each device driver except for graphic driver.
2. To install graphic driver, Execute the below commands.
1. sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
2. sudo apt-get update
3. sudo apt-get install nvidia-current
4. sudo apt-get install linux-headers-3.5.0-17-generic
1. If you see the error message, execute the below command.
• sudo apt-get install linux-headers-generic
5. sudo apt-get remove nvidia-current
6. sudo apt-get install nvidia-current

• Source
1. http://askubuntu.com/questions/202677/nvidia-driver-doesnt-work-in-12-10
2. http://windowsforum.kr/lecture/3807519