Package: emacs-gtk
Version: 1:29.4+1-6
Severity: normal

Dear Maintainer,

When running emacs in a KDE Plasma Wayland session, resizing the window causes
emacs to become unresponsive for several seconds. The window initially does not
change size and the window contents do not update in response to any input or
commands. After several seconds, the window is resized and the contents update
as normal, including any input issued while the window was unresponsive. The
application does respond normally to the close button on the title bar while in
this state. It also correctly processes input like `M-x kill-emacs`, suggesting
that the unresponsiveness is limited to rendering. The problem appears with
both horizontal and vertical resizing.

I can reliably reproduce this under Wayland. I have not been able to reproduce
it under X11. I have not seen this issue with other GTK apps like gimp or
darktable. Package versions that might be relevant are:

- emacs-gtk: 1:29.4+1-6
- linux-image-amd64: 6.12.12-1
- plasma-desktop: 4:6.3.0-1
- kwin-wayland: 4:6.3.0-2
- kwin-x11: 4:6.3.0-2
- nvidia-driver: 535.216.03-2


-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (650, 'testing'), (10, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.12-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages emacs-gtk depends on:
ii  emacs-bin-common     1:29.4+1-6
ii  emacs-common         1:29.4+1-6
ii  libacl1              2.3.2-2+b1
ii  libasound2t64        1.2.13-1+b1
ii  libc6                2.40-7
ii  libcairo2            1.18.2-2
ii  libdbus-1-3          1.16.0-1
ii  libfontconfig1       2.15.0-2
ii  libfreetype6         2.13.3+dfsg-1
ii  libgccjit0           14.2.0-16
ii  libgdk-pixbuf-2.0-0  2.42.12+dfsg-2
ii  libgif7              5.2.2-1+b1
ii  libglib2.0-0t64      2.83.3-2
ii  libgmp10             2:6.3.0+dfsg-3
ii  libgnutls30t64       3.8.9-2
ii  libgpm2              1.20.7-11+b2
ii  libgtk-3-0t64        3.24.48-4
ii  libharfbuzz0b        10.2.0-1
ii  libice6              2:1.1.1-1
ii  libjansson4          2.14-2+b3
ii  libjpeg62-turbo      1:2.1.5-3+b1
ii  liblcms2-2           2.16-2
ii  libm17n-0            1.8.4-2
ii  libotf1              0.9.16-4+b2
ii  libpango-1.0-0       1.56.1-1
ii  libpng16-16t64       1.6.46-4
ii  librsvg2-2           2.59.90+dfsg-2
ii  libselinux1          3.7-3.1
ii  libsm6               2:1.2.4-1
ii  libsqlite3-0         3.46.1-1
ii  libsystemd0          257.3-1
ii  libtiff6             4.5.1+git230720-5
ii  libtinfo6            6.5+20250125-2
ii  libtree-sitter0      0.20.8-2+b2
ii  libwebpdecoder3      1.5.0-0.1
ii  libwebpdemux2        1.5.0-0.1
ii  libx11-6             2:1.8.10-2
ii  libxcomposite1       1:0.4.6-1
ii  libxext6             2:1.3.4-1+b3
ii  libxfixes3           1:6.0.0-2+b4
ii  libxi6               2:1.8.2-1
ii  libxinerama1         2:1.1.4-3+b3
ii  libxml2              2.12.7+dfsg+really2.9.14-0.2+b1
ii  libxrandr2           2:1.5.4-1+b3
ii  libxrender1          1:0.9.10-1.1+b4
ii  zlib1g               1:1.3.dfsg+really1.3.1-1+b1

Versions of packages emacs-gtk recommends:
ii  fonts-noto-color-emoji  2.047-1

Versions of packages emacs-gtk suggests:
ii  emacs-common-non-dfsg      1:29.4+1-1
pn  emacs-editing-major-modes  <none>

-- no debconf information

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