I connected my 42” LCD TV to my laptop using a standard monitor cable, at first I was able to watch movies, but after 30 minutes my 42” LCD TV goes blank screen even tuning to local channel won’t make the screen display.
So I turn off the power of the LCD TV for 20 seconds, the LCD TV is working properly. Then I use the HDMI cable to connect my 42” LCD TV to my laptop and the result is the same.
Well mostly LCD stuck with the cables it might be the problem in your LCD because as u connect your LCD with monitor from standard monitor cable it also stuck up with 30 Minutes as your switch off your LCD its goes back on working condition so it seems to me that might be the problem in your LCD V.
J point first of all try to change the HDMI cable and connect the new cable of HDMI there are two reasons for this problem might be your laptop hang up or having a display driver or cable problem try to resolve from your laptop driver's installation try to upgrade your display driver also.
Hope this all will help you to resolve the problem.
