I just got a new Raspberry Pi 3 B and a "For Raspberry Pi IPS 7 Inch HDMI LCD Display Monitor 1024X600 Touch Screen".
I haven't tested the Raspberry with any LCD. I'd rather avoid having to buy another LCD to ensure the Raspberry.
I put the 2019-09-26-raspbian-buster-full image via rufus 3.8p onto a 32GB SD card. With the touch screen connected to the Raspberry Pi I powered it and nothing but grey lines filled the LCD (see attached photo of the LCD).
I'm new to the Raspberry. I don't know where to go from here. Any help is greatly appreciated.