I have a Gigabyte laptop. When I plug it into my basic 22" LCD monitor via HDMI it does not show true black, only very dark grey. The laptop's display will show true black. I have tried the Windows 7 ...

Desktop and laptop computer LCD monitors sport a long light bulb to display the video. When this bulb burns out, the screen dims to almost black. Failing backlights can also cause the picture to ...