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From: Eli Zaretskii <eliz@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: darthandrus@gmail.com, 11070@debbugs.gnu.org
Subject: bug#11070: 24.0.94; Large stippled images not displayed consistently
Date: Sun, 29 Sep 2019 14:40:25 +0300	[thread overview]
Message-ID: <83ftkffhzq.fsf@gnu.org> (raw)
In-Reply-To: <87r23znyq3.fsf@gnus.org> (message from Lars Ingebrigtsen on Sun,  29 Sep 2019 13:11:48 +0200)

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: darthandrus@gmail.com,  rgm@gnu.org,  11070@debbugs.gnu.org
> Date: Sun, 29 Sep 2019 13:11:48 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Do those glitches disappear if, after scrolling, you type "M-x
> > redraw-display RET"?
> 
> Yes, M-x redraw-display fixes the glitches.

Then some redisplay optimization is at work here.  If your build was
configured with --enable-checking=glyphs, does the problem go away if
you set _all_ of the following variable non-nil?

  inhibit-try-cursor-movement
  inhibit-try-window-id
  inhibit-try-window-reusing

> > Also, could you (or someone else) try the same in some old version of
> > Emacs, say, 24.3?
> 
> The oldest Emacs I have here is 24.5, and the glitches are present
> there, too.

24.5 was after Stefan removed many redisplay triggers, AFAIR, so
that's too recent.  Does anyone have an older version on X and can
test that?  Emacs 23 should also be good.

Thanks.





  reply	other threads:[~2019-09-29 11:40 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-22 21:12 bug#11070: 24.0.94; Large stippled images not displayed consistently Ivan Andrus
2012-03-23 10:30 ` Eli Zaretskii
2012-03-23 11:00   ` Ivan Andrus
2012-03-23 16:04 ` Eli Zaretskii
2012-03-23 18:32   ` Drew Adams
2012-03-23 23:27   ` Johan Bockgård
2012-03-23 23:33   ` Glenn Morris
2019-09-26 17:30     ` Lars Ingebrigtsen
2019-09-28  9:55       ` Eli Zaretskii
2019-09-28 19:53         ` Lars Ingebrigtsen
2019-09-29  6:03           ` Eli Zaretskii
2019-09-29 11:11             ` Lars Ingebrigtsen
2019-09-29 11:40               ` Eli Zaretskii [this message]
2019-09-29 18:33                 ` Lars Ingebrigtsen
2019-09-29 19:26                   ` Eli Zaretskii
2019-09-29 19:29                     ` Lars Ingebrigtsen
2019-09-30  5:58                       ` Eli Zaretskii

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