GNU bug report logs - #16736
Compiling a Lisp file causes display to flash off and on

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Message #60 received at 16736 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 16736 <at> debbugs.gnu.org
Subject: Re: bug#16736: Compiling a Lisp file causes display to flash off and
 on
Date: Mon, 17 Feb 2014 07:15:19 +0200

> From: Glenn Morris <rgm <at> gnu.org>
> Cc: 16736 <at> debbugs.gnu.org
> Date: Sun, 16 Feb 2014 20:18:39 -0500
> 
> > Are you saying that tracing into update_window_line and then
> > update_text_area for these two, you see that the loop which starts at
> > line 3598 ends with i's value smaller than
> > desired_row->used[TEXT_AREA], and you see these 3 lines (3696 to 3698)
> > being executed:
> 
> That does not seem to happen, no.
> I have i = stop = 13 = desired_row->used[TEXT_AREA].

That figures: the problem is not that the rows differ, the problem is
that Emacs thinks the frame is garbaged, and redraws it
unconditionally.

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