Bug#993223: gnome-screenshot: Capture of 3840x2160 screen limited to upper left 1920x1080 pixels

[J.D.]

Package: gnome-screenshot
Version: 3.38.0-1
Severity: important
X-Debbugs-Cc: jd at freeshell.org

Dear Maintainer,

After upgrading to Debian 11, gnome-screenshot could not capture an
entire 3840x2160 screen with Capture Area -> Screen.  Only the upper
left 1920x1080 pixels were captured correctly with the remaining pixels
black.

Version 40.0-1 from the testing distribution yielded the same result.

Installing the old version 3.30.0-2 from Debian 10 on the upgraded
system allowed the entire 3840x2160 screen to be captured again.


-- System Information:
Debian Release: 11.0
  APT prefers stable-security
  APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-8-amd64 (SMP w/8 CPU threads)
Kernel taint flags: 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 gnome-screenshot depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.38.0-2
ii  libc6                                        2.31-13
ii  libcairo2                                    1.16.0-5
ii  libcanberra-gtk3-0                           0.30-7
ii  libcanberra0                                 0.30-7
ii  libgdk-pixbuf2.0-0                           2.40.2-2
ii  libglib2.0-0                                 2.66.8-1
ii  libgtk-3-0                                   3.24.24-4
ii  libhandy-1-0                                 1.0.3-2
ii  libx11-6                                     2:1.7.2-1
ii  libxext6                                     2:1.3.3-1.1

gnome-screenshot recommends no packages.

gnome-screenshot suggests no packages.

-- no debconf information