[nailer]

I was a Linux user in the early 2000s and learnt about framebuffers in a similar but less embarrassing way: sometimes X would crash, and before the root weave was drawn, the last thing you were doing when X crashed appeared for a moment.

X crashed a lot back then, so everyone learnt pretty quickly.

[mmsmatt]

I dual booted Win 98 and various Debian flavors. Once I got OpenGL going, I would sometimes see the "last" frame of a Windows session flash as X started up.