Unable to start VNC server because :0 is taken

Question

I have a Raspberry Pi with Raspbian OS. After install VNC I've tried to start the server and return this:

 ~ $ vncserver :0

Warning: raspberrypi:0 is taken because of /tmp/.X0-lock
Remove this file if there is no X server raspberrypi:0
A VNC server is already running as :0

If I remove that temp file, return this:

~ $ vncserver :0

Warning: raspberrypi:0 is taken because of /tmp/.X11-unix/X0
Remove this file if there is no X server raspberrypi:0
A VNC server is already running as :0

If I remove again, the server start, but a plain grey screen is shown trough VNC client. In short, after:

~ $ sudo rm /tmp/.X11-unix/X0
~ $ sudo rm /tmp/.X0-lock
~ $ vncserver :0

New 'X' desktop is raspberrypi:0

Starting applications specified in /home/pi/.vnc/xstartup
Log file is /home/pi/.vnc/raspberrypi:0.log

I can see this in the RealVNC client (screen capture):

https://dzwonsemrish7.cloudfront.net/items/40182G3E332b3f1j3846/Captura%20de%20pantalla%202013-11-11%20a%20las%2023.03.46.png?v=6719a796

I have no idea what happens.

Answer 1

Finally, I've dicovered that I can run VNC in port :1

vncserver :1

then, I must connect VNC viewer at

myIP:1

It works.