My new laptop display wont work. Original problem occured with intermittent flickering when lid was moved. This I put down to bad display cable and ignored (bad idea in hindsight). Display finally flickered , had a white cloud and then black. Laptop boots up fine and backlight turns on when it's supposed to but screen remains blank. Works perfectly through external monitor. I then replaced the display cable with no change. Replaced display with brand new identical and no change. I tried hooking it up with an old 14" display (mine is 17") and sure enough i could make out my background on display (image was dark but no backlight on as cables were different).
I'm stumped now to what my problem could be and if anyone has an idea I greatly appreciate it.