GNU bug report logs - #52085
29.0.50; Frame occasionally fails to paint while screen sharing on macOS

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Aaron Jensen <aaronjensen <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.50; Frame occasionally fails to paint while screen sharing on
 macOS
Date: Wed, 24 Nov 2021 20:12:53 -0500

I still need to try this with emacs -Q, but I have seen this for some
time now (possibly since Alan's recent batch of changes to macOS
rendering)

If I am screen sharing on zoom, I will often issue a command that I
expect to repaint the frame and it will not. If I issue another then it
repaints immediately with both commands having been realized. This
*only* happens when screen sharing with Zoom. I will try other screen
sharing software to see if it is a Zoom specific thing. I am typically
sharing just the Emacs window (and maybe an iTerm and a browser), but
never full screen sharing.

Alan, is there anything that you could think of that could cause
something like this to happen? Is there logging I could add to help get
to the bottom of it?

Thanks,

Aaron

In GNU Emacs 29.0.50 (build 1, x86_64-apple-darwin21.2.0, NS appkit-2112.20 Version 12.1 (Build 21C5021h))
 of 2021-11-13 built on Aarons-MacBook-Pro.local
Windowing system distributor 'Apple', version 10.3.2112
System Description:  macOS 12.1

Configured using:
 'configure --disable-dependency-tracking --disable-silent-rules
 --enable-locallisppath=/usr/local/share/emacs/site-lisp
 --infodir=/usr/local/Cellar/emacs-plus <at> 29/29.0.50/share/info/emacs
 --prefix=/usr/local/Cellar/emacs-plus <at> 29/29.0.50 --with-xml2
 --with-gnutls --with-native-compilation --without-dbus
 --without-imagemagick --with-modules --with-rsvg --with-ns
 --disable-ns-self-contained 'CFLAGS=-I/usr/local/opt/gcc/include
 -I/usr/local/opt/libgccjit/include -I/usr/local/opt/gmp/include
 -I/usr/local/opt/jpeg/include' 'LDFLAGS=-L/usr/local/lib/gcc/11
 -I/usr/local/opt/gcc/include -I/usr/local/opt/libgccjit/include
 -I/usr/local/opt/gmp/include -I/usr/local/opt/jpeg/include''

Configured features:
ACL GIF GLIB GMP GNUTLS JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP
NOTIFY KQUEUE NS PDUMPER PNG RSVG THREADS TIFF TOOLKIT_SCROLL_BARS XIM
ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

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Memory information:
((conses 16 2867922 1088976)
 (symbols 48 89673 2)
 (strings 32 363999 172828)
 (string-bytes 1 15018849)
 (vectors 16 260455)
 (vector-slots 8 5514205 431800)
 (floats 8 1228 4242)
 (intervals 56 149462 2507)
 (buffers 992 247))

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