GNU bug report logs - #18757
24.4; Intermittent screen flicker since upgrading to OS X 10.10

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Message #17 received at 18757 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Emanuel Evans <emanuel.evans <at> gmail.com>, jan.h.d <at> swipnet.se
Cc: 18757 <at> debbugs.gnu.org
Subject: Re: bug#18757: 24.4;
 Intermittent screen flicker since upgrading to OS X 10.10
Date: Sat, 18 Oct 2014 19:27:40 +0300

> From: Emanuel Evans <emanuel.evans <at> gmail.com>
> Date: Sat, 18 Oct 2014 09:02:01 -0700
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > Once the flicker starts, does it stop on its own, or does it continue
> > indefinitely?
> 
> It flickers once per window/buffer switch (it doesn't flicker when
> typing within a buffer), and it continues indefinitely.

And you are saying that the same pretest didn't exhibit such behavior
on the older OS version?  In that case, I guess there's some X event
that the new OS sends to Emacs that causes these redraws.  Perhaps Jan
could chime in and suggest some way of investigating this.

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