I am connected raspberry pi 2 model b HDMI to VGA converter cable to my Desktop VGA card.But in monitor first 10 seconds it will displays the process and then screen will some red scratches coming after 10 seconds and then total screen will not coming. (I think my VGA cable is very long that's why it is not coming or another problem)
Are you sure you use the right converter? It sounds like you are using two converter?
Why not just find a VGA to HDMI cable or a DVI to HDMI cable? Not all converters work on Raspberry. Can a simple cable convert HDMI output to VGA? Try to look at the link, there are some explanation about the type of converters.