Flickering Monitor (Samsung, maybe others too…)

For the last couple of weeks I’ve been experiencing problems with my new Samsung P2450H monitor whereby, when plugged into my laptop (D-SUB) and viewing pages with dark or gradient backgrounds, the monitor would flicker horizontal lines across the screen. Re-calibrating and adjusting the refresh rate didn’t help at all. I was happy enough to ignore it at first until, finally, it became too much. After hunting around for a solution, I found this page [...]