For a while I’ve just ignored my issues with LCD image persistence – essentially the same thing as screen burn-in on CRTs. Fortunately, LCD image persistence is not permanent. I’ve read conflicting accounts of how to get rid of it, but haven’t had any luck with methods I’ve tried.
Until now, that is. This short guide explains that the quickest solution to LCD image persistence is to force your displays to alternate between all-black and all-white images. It mentions doing this with a photo slideshow screensaver. I did it with the GNOME screensaver utility, let it run overnight, and my image persistence problems are gone. Just thought I’d share the solution that worked for me.