bug#16621: 24.3.50; Periodic timer + overlays = flickering near point

[Eli Zaretskii]

> From: Jan Djärv <jan.h.d@swipnet.se>
> Date: Wed, 5 Feb 2014 07:02:22 +0100
> Cc: Dmitry Gutov <dgutov@yandex.ru>,
>  16621@debbugs.gnu.org,
>  monnier@IRO.UMontreal.CA
> 
> > Can you tell when does the cursor need to be redrawn on X?
> 
> Not sure what you mean, but when it blinks, when text under it (or near it 
> due to overhangs) changes, or when there is an expose event.

That's exactly what I was asking, thanks.