I have a laptop which displays graphics normally when connected to an external monitor but flickers/shimmers at bootup and doesn't displays colour properly in Windows once booted up.
I would descibe the flickering as if the image is shaking left to right rapidly in small movements as if it can't hold the image still. Once booted the colours aren't displayed properly as if it can't display the full bit depth plus white text isn't legible.
I assume the fact the screen flickers/shimmers in the BIOS that it points to hardware fault.
I have changed the LCD screen, LCD cable, and LCD Invertor for new ones (correct parts) but still have the problem.
I don't know what else to try, can anyone help?