Re: Redisplay issue

[Eli Zaretskii]

> Date: Sat, 28 Nov 2015 12:19:31 -0800
> From: Yuan MEI <address@hidden>
> Cc: emacs-devel <address@hidden>
> 
> > Then please see if the scenario in which this happens causes the
> > expose events to be delivered to Emacs by X.  If they are, the
> > function expose_frame should be called, and it should perform the
> > necessary redisplay.  If these events are not reported, Emacs has no
> > way of knowing that its frame(s) need to be redrawn.
> >
> > Thanks.
> 
> It seems the expose event is sent to Emacs and Emacs does respond to
> it.  However the response is not redrawing the entire frame but
> redrawing part of it.  And it looks that some parts that should be
> redrawn is not.  Any suggestions?

Can you see if the coordinates of the exposed region, as reported to
Emacs, correspond to what is in fact exposed?