GNU bug report logs - #67155
30.0.50; (x-synchronize t) garbels display

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

From: Gregor Zattler <grfz <at> gmx.de>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.50; (x-synchronize t) garbels display
Date: Tue, 14 Nov 2023 00:58:21 +0100

[Message part 1 (text/plain, inline)]

I cannot reproduce with -Q, but evaluating
`(x-synchronize t)' sometimes garbles display.  See
attached screenshot.  Note: When copying the region
shown in the screenshot and pasting into nano, the text
is correct, not garbled.

Evaluation of `(x-synchronize t)' is part of the
attempt to capture a usable backtrace for bug#66978.

Now this display bug is another one.  If you have any
ideas how to investigate these I would be happy to help
following instructions.

Thanks, Gregor

[2023-11-13-x-synchronize-t-mangels-display.png (image/png, attachment)]

[Message part 3 (text/plain, inline)]

In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu,
 cairo version 1.16.0) of 2023-11-02 built on no
Repository revision: 078cfe807295038fa321c9297e24de5145065622
Repository branch: HEAD
Windowing system distributor 'The X.Org Foundation', version 11.0.12101007
System Description: Debian GNU/Linux 12 (bookworm)

Configured using:
 'configure --infodir=/usr/share/info/emacs --with-json
 --with-file-notification=yes --with-libsystemd
 --with-cairo --with-x=yes --with-x-toolkit=no
 --without-toolkit-scroll-bars --without-gsettings
 --enable-checking=yes,glyphs
 --enable-check-lisp-object-type
 --with-native-compilation 'CFLAGS=-g3 -O3
 -ffile-prefix-map=/home/grfz/src/emacs-master--078cfe807295038fa321c9297e24de5145065622--2023-11-02T00-38+01-00=. -fstack-protector-strong
 -Wformat -Werror=format-security ''

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM
HARFBUZZ JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD
LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY
OLDXMENU PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS
TIFF WEBP X11 XDBE XIM XINPUT2 XPM ZLIB

Important settings:
  value of $LC_ALL:
  value of $LC_COLLATE: de_DE.utf8
  value of $LC_CTYPE: de_DE.utf8
  value of $LC_MESSAGES: POSIX
  value of $LC_MONETARY: de_DE.utf8
  value of $LC_NUMERIC: de_DE.utf8
  value of $LC_TIME: de_DE.utf8
  value of $LANG: de_DE.utf8
  locale-coding-system: utf-8-unix

Major mode: notmuch-show

Minor modes in effect:
  server-mode: t
  winner-mode: t
  gcmh-mode: t
  mail-abbrevs-mode: t
  savehist-mode: t
  ws-butler-global-mode: t
  ws-butler-mode: t
  delete-selection-mode: t
  which-function-mode: t
  windmove-mode: t
  xterm-mouse-mode: t
  emacs-gc-stats-mode: t
  override-global-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  minibuffer-regexp-mode: t
  buffer-read-only: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  visual-line-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/home/grfz/src/notmuch/emacs/notmuch-lib hides /usr/local/share/emacs/site-lisp/notmuch-lib
/home/grfz/src/notmuch/emacs/coolj hides /usr/local/share/emacs/site-lisp/coolj
/home/grfz/src/notmuch/emacs/notmuch-address hides /usr/local/share/emacs/site-lisp/notmuch-address
/home/grfz/src/notmuch/emacs/notmuch-hello hides /usr/local/share/emacs/site-lisp/notmuch-hello
/home/grfz/src/notmuch/emacs/notmuch-parser hides /usr/local/share/emacs/site-lisp/notmuch-parser
/home/grfz/src/notmuch/emacs/notmuch-show hides /usr/local/share/emacs/site-lisp/notmuch-show
/home/grfz/src/notmuch/emacs/notmuch-wash hides /usr/local/share/emacs/site-lisp/notmuch-wash
/home/grfz/src/notmuch/emacs/notmuch-draft hides /usr/local/share/emacs/site-lisp/notmuch-draft
/home/grfz/src/notmuch/emacs/notmuch-tree hides /usr/local/share/emacs/site-lisp/notmuch-tree
/home/grfz/src/notmuch/emacs/notmuch-version hides /usr/local/share/emacs/site-lisp/notmuch-version
/home/grfz/src/notmuch/emacs/notmuch-jump hides /usr/local/share/emacs/site-lisp/notmuch-jump
/home/grfz/src/notmuch/emacs/notmuch-company hides /usr/local/share/emacs/site-lisp/notmuch-company
/home/grfz/src/notmuch/emacs/notmuch hides /usr/local/share/emacs/site-lisp/notmuch
/home/grfz/src/notmuch/emacs/notmuch-crypto hides /usr/local/share/emacs/site-lisp/notmuch-crypto
/home/grfz/src/notmuch/emacs/notmuch-compat hides /usr/local/share/emacs/site-lisp/notmuch-compat
/home/grfz/src/notmuch/emacs/notmuch-maildir-fcc hides /usr/local/share/emacs/site-lisp/notmuch-maildir-fcc
/home/grfz/src/notmuch/emacs/notmuch-tag hides /usr/local/share/emacs/site-lisp/notmuch-tag
/home/grfz/src/notmuch/emacs/notmuch-message hides /usr/local/share/emacs/site-lisp/notmuch-message
/home/grfz/src/notmuch/emacs/notmuch-print hides /usr/local/share/emacs/site-lisp/notmuch-print
/home/grfz/src/notmuch/emacs/notmuch-mua hides /usr/local/share/emacs/site-lisp/notmuch-mua
/home/grfz/src/notmuch/emacs/notmuch-query hides /usr/local/share/emacs/site-lisp/notmuch-query
/home/grfz/src/notmuch/emacs/notmuch-address hides /home/grfz/.config/emacs/elisp/notmuch-address
/home/grfz/src/ol-notmuch/ol-notmuch hides /home/grfz/.config/emacs/elisp/ol-notmuch
/home/grfz/.config/emacs/elpa-30.0/transient-0.4.3/transient hides /home/grfz/src/emacs-master--078cfe807295038fa321c9297e24de5145065622--2023-11-02T00-38+01-00/lisp/transient

Features:
(shadow emacsbug sort mail-extr orgalist ecomplete
misearch multi-isearch face-remap autorevert org-eldoc
wcheck-mode oc-basic org-element org-persist org-id
org-refile org-element-ast inline avl-tree generator
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ol-info ol-gnus nnselect gnus-art mm-uu mml2015
gnus-sum shr pixel-fill kinsoku url-file svg dom
gnus-group gnus-undo gnus-start gnus-dbus gnus-cloud
nnimap nnmail mail-source utf7 nnoo parse-time
gnus-spec gnus-int gnus-range gnus-win gnus nnheader
range ol-docview doc-view filenotify jka-compr
image-mode exif ol-bibtex bibtex iso8601 ol-bbdb ol-w3m
ol-doi org-link-doi mule-util add-log server
rainbow-delimiters notifications time winner gcmh
ol-notmuch notmuch notmuch-tree notmuch-jump
notmuch-hello notmuch-show notmuch-print notmuch-crypto
notmuch-mua notmuch-message notmuch-draft
notmuch-maildir-fcc notmuch-address notmuch-company
notmuch-parser notmuch-wash diff-mode coolj goto-addr
thingatpt icalendar diary-lib diary-loaddefs
notmuch-tag crm notmuch-lib notmuch-version
notmuch-compat pcase hl-line message yank-media rfc822
mml gmm-utils mailheader mm-view mml-smime mml-sec epa
derived epg rfc6068 epg-config gnus-util
text-property-search smime gnutls puny dig mm-decode
mm-bodies mm-encode mail-parse rfc2231 compat org-crypt
org-protocol org-clock dbus xml ob-plantuml sendmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr
mail-utils finder-inf mailabbrev savehist
auth-source-pass holidays holiday-loaddefs ws-butler
delsel modus-operandi-theme modus-themes which-func
imenu windmove xt-mouse edmacro kmacro key-chord comp
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dired dired-loaddefs cl-extra help-mode org ob ob-ref
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pcomplete org-list org-footnote org-faces org-entities
time-date noutline outline ob-emacs-lisp org-table
org-loaddefs find-func cal-menu calendar cal-loaddefs
ob-tangle ol org-src sh-script rx smie treesit
executable org-keys oc ob-comint comint ansi-osc
ansi-color ring ob-core org-cycle org-fold
org-fold-core org-compat ob-eval org-version org-macs
format-spec use-package use-package-ensure
use-package-delight use-package-diminish
use-package-bind-key bind-key easy-mmode
use-package-core async-autoloads csv-mode-autoloads
debbugs-autoloads dired-git-info-autoloads
emacs-gc-stats-autoloads gcmh-autoloads
hyperbole-autoloads key-chord-autoloads magit-autoloads
git-commit-autoloads magit-section-autoloads
dash-autoloads org-contrib-autoloads orgalist-autoloads
paredit-autoloads rainbow-delimiters-autoloads
rainbow-mode-autoloads transient-autoloads
wcheck-mode-autoloads which-key-autoloads
with-editor-autoloads info compat-autoloads
ws-butler-autoloads package browse-url url url-proxy
url-privacy url-expand url-methods url-history
url-cookie generate-lisp-file url-domsuf url-util
mailcap url-handlers url-parse auth-source cl-seq eieio
eieio-core cl-macs password-cache json subr-x map
byte-opt gv bytecomp byte-compile url-vars cus-edit pp
cus-load icons wid-edit cl-loaddefs cl-lib rmc
iso-transl tooltip cconv eldoc paren electric uniquify
ediff-hook vc-hooks lisp-float-type elisp-mode mwheel
term/x-win x-win term/common-win x-dnd touch-screen
tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow
isearch easymenu timer select scroll-bar mouse jit-lock
font-lock syntax font-core term/tty-colors frame
minibuffer nadvice seq simple cl-generic indonesian
philippine cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese
eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite
emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded
button loaddefs theme-loaddefs faces cus-face macroexp
files window text-properties overlay sha1 md5 base64
format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind
inotify lcms2 dynamic-setting font-render-setting cairo
xinput2 x multi-tty move-toolbar make-network-process
native-compile emacs)

Memory information:
((conses 16 806919 373347) (symbols 48 35475 1)
 (strings 32 132310 44204) (string-bytes 1 5971227) (vectors 16 74471)
 (vector-slots 8 2009376 487581) (floats 8 618 10423)
 (intervals 56 53803 18551) (buffers 984 22))

Message #8 received at 67155 <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Gregor Zattler <grfz <at> gmx.de>, 67155 <at> debbugs.gnu.org
Subject: Re: bug#67155: 30.0.50; (x-synchronize t) garbels display
Date: Wed, 15 Nov 2023 21:10:26 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Gregor Zattler <grfz <at> gmx.de>
>> Date: Tue, 14 Nov 2023 00:58:21 +0100
>> 
>> I cannot reproduce with -Q, but evaluating
>> `(x-synchronize t)' sometimes garbles display.  See
>> attached screenshot.  Note: When copying the region
>> shown in the screenshot and pasting into nano, the text
>> is correct, not garbled.
>> 
>> Evaluation of `(x-synchronize t)' is part of the
>> attempt to capture a usable backtrace for bug#66978.
>> 
>> Now this display bug is another one.  If you have any
>> ideas how to investigate these I would be happy to help
>> following instructions.
>
> Po Lu, any ideas or suggestions?

Not really, unless you (Gregor) try running Emacs with the X font
backend for a while, and tell me whether the problem abates then:

  (set-frame-parameter nil 'font-backend 'x)

TIA.

Message #11 received at 67155 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Gregor Zattler <grfz <at> gmx.de>, Po Lu <luangruo <at> yahoo.com>
Cc: 67155 <at> debbugs.gnu.org
Subject: Re: bug#67155: 30.0.50; (x-synchronize t) garbels display
Date: Wed, 15 Nov 2023 15:04:48 +0200

> From: Gregor Zattler <grfz <at> gmx.de>
> Date: Tue, 14 Nov 2023 00:58:21 +0100
> 
> I cannot reproduce with -Q, but evaluating
> `(x-synchronize t)' sometimes garbles display.  See
> attached screenshot.  Note: When copying the region
> shown in the screenshot and pasting into nano, the text
> is correct, not garbled.
> 
> Evaluation of `(x-synchronize t)' is part of the
> attempt to capture a usable backtrace for bug#66978.
> 
> Now this display bug is another one.  If you have any
> ideas how to investigate these I would be happy to help
> following instructions.

Po Lu, any ideas or suggestions?

Message #14 received at 67155 <at> debbugs.gnu.org (full text, mbox):

From: Gregor Zattler <grfz <at> gmx.de>
To: Po Lu <luangruo <at> yahoo.com>, Eli Zaretskii <eliz <at> gnu.org>
Cc: 67155 <at> debbugs.gnu.org
Subject: Re: bug#67155: 30.0.50; (x-synchronize t) garbels display
Date: Thu, 16 Nov 2023 13:10:44 +0100

* Po Lu <luangruo <at> yahoo.com> [2023-11-15; 21:10 +08]:
> Eli Zaretskii <eliz <at> gnu.org> writes:
>>> From: Gregor Zattler <grfz <at> gmx.de>
>>> Date: Tue, 14 Nov 2023 00:58:21 +0100
>>>
>>> I cannot reproduce with -Q, but evaluating
>>> `(x-synchronize t)' sometimes garbles display.  See
>>> attached screenshot.  Note: When copying the region
>>> shown in the screenshot and pasting into nano, the text
>>> is correct, not garbled.
>>>
>>> Evaluation of `(x-synchronize t)' is part of the
>>> attempt to capture a usable backtrace for bug#66978.
>>>
>>> Now this display bug is another one.  If you have any
>>> ideas how to investigate these I would be happy to help
>>> following instructions.
>>
>> Po Lu, any ideas or suggestions?
>
> Not really, unless you (Gregor) try running Emacs with the X font
> backend for a while, and tell me whether the problem abates then:
>
>   (set-frame-parameter nil 'font-backend 'x)

With this setting the display should not be garbled,
although using `(x-synchronize t)'?


This only worked with

(set-frame-parameter nil 'font-backend "x")

so with string instead of symbol.

This display bug showed up a few times till I reported
it -- but not since I made `(x-synchronize t)' part of
my standard setup.

I now enabled `(set-frame-parameter nil 'font-backend
"x")' as part of my setup, but the available fonts are
really not nice.  I will see how long I can bear with
them for the sake of catching a backtrace of for
bug#66978, which also did not show up again.

Thanks, Gregor

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