LG Flatron m208wa model input issue

Hello,

I have an LG Flatron M208wa monitor. Till recently showed to input methods RGB and other choices of course. I don't know how it happened but nowadays it shows only three choices: TV, AV1-2. My problem is, I had connected with the monitor my laptop. After that strange change my monitor stopped its connection with VGA cable and my laptop. Is there any solution because either AV1-2 doesn't seem to work for me, I only see no signal screne...