Resuming Screen

I usually using screen command for my work on machine. It works when I lost my connection to my machine, my job could be continued. But some case, my screen not detached. This is my solution when the screen still attached. Fist of all, check your screen status with command "screen -ls"

1. Use screen -D. Just type "sceen -d (ppt/tty number)"
2. If number 1 failed. So you need to kill the process. What process number? 

"ps -ef | grep screen"
noted the number where the pty/tty is " screen -r 123.tty.DEVMRCAP"
"ps -ef  | grep (process number)
noted the process number
"kill -9 (process number)

Believe me, it works :D