Just to be clear - this isn't a software issue, it's a hardware one.<p>Early rMBPs were known to suffer from "ghosting" - where old images persist on the display faintly in the background.<p>Pop to your local Apple Store and demonstrate the issue. They'll replace the top half of the clamshell - it's pretty standard and well known now.
It's called Image Persistance, a defect of the display.<p>If you have an Apple Store right next to you, schedule an appointment and show it to them. They should replace it for you.<p>If you don't have one nearby, call Apple Care.<p>I got mine replaced for the same problem.
To diagnose Macs circa 2012 with screen defects due to manufacturing by LG, use the `ioreg` command:<p><a href="https://github.com/SixArm/sixarm_unix_shell_scripts/blob/master/macbook-pro-retina-screen-manufacturer" rel="nofollow">https://github.com/SixArm/sixarm_unix_shell_scripts/blob/mas...</a><p><pre><code> ioreg -lw0 |
grep \"EDID\" |
sed "/[^<]*</s///" |
xxd -p -r |
strings -6</code></pre>
I had this issue with my Mid 2012 retina MacBook Pro 15 in. It was a recognized problem with one of the vendors for the displays. I got it replaced at the Apple Store some time ago.
Might present a security risk. Burn-in persistence on CRT screens was a serious concern in olden times. Once they entered a SCIF, monitors were not allowed to leave, at our site. I participated in experiments using flash UV to try to detect latent images; what worked better, though, was manipulating the electron gun from the back of the CRT to produce a flood beam.<p>Williams tube memory (before my time) and Tektronix 4014 terminals worked by similar physics.<p>Time to update the policies & procedures to include LCDs. OLED, when it arrives, will almost certainly exhibit the same effect.
You must have an LG panel. <a href="https://www.youtube.com/watch?v=KdhIA8-UIRQ" rel="nofollow">https://www.youtube.com/watch?v=KdhIA8-UIRQ</a>
I got briefly excited that maybe somebody decided to post my computer game called "Ghost in the Machine" on HN, but then naivety died down and I read the rest.