Public bug reported:
$ /usr/bin/gnome-screenshot
reports:
(gnome-screenshot:43884): Handy-WARNING **: 16:10:12.091: Using
GtkSettings:gtk-application-prefer-dark-theme together with HdyStyleManager is
unsupported. Please use HdyStyleManager:color-scheme instead.
** Message: 16:10:12.293: Unable to use GNOME Shell's builtin screenshot
interface, resorting to fallback X11.
(gnome-screenshot:43884): Gdk-CRITICAL **: 16:10:12.293:
gdk_pixbuf_get_from_surface: assertion 'width > 0 && height > 0' failed
(gnome-screenshot:43884): GdkPixbuf-CRITICAL **: 16:10:12.293:
gdk_pixbuf_get_width: assertion 'GDK_IS_PIXBUF (pixbuf)' failed
(gnome-screenshot:43884): GdkPixbuf-CRITICAL **: 16:10:12.293:
gdk_pixbuf_get_height: assertion 'GDK_IS_PIXBUF (pixbuf)' failed
*** BUG ***
In pixman_region32_init_rect: Invalid rectangle passed
Set a breakpoint on '_pixman_log_error' to debug
(gnome-screenshot:43884): GdkPixbuf-CRITICAL **: 16:10:12.293:
gdk_pixbuf_get_width: assertion 'GDK_IS_PIXBUF (pixbuf)' failed
(gnome-screenshot:43884): GdkPixbuf-CRITICAL **: 16:10:12.293:
gdk_pixbuf_get_height: assertion 'GDK_IS_PIXBUF (pixbuf)' failed
(gnome-screenshot:43884): Gtk-CRITICAL **: 16:10:12.310:
gtk_window_resize: assertion 'width > 0' failed
** (gnome-screenshot:43884): CRITICAL **: 16:10:12.310: Unable to
capture a screenshot of any window
And never exits. At the same time, I'm also not able to take a screenshot in
GNOME -- the screenshot application allows me to choose screen, window, or
selection -- but after choosing one of those three options, the cursor never
changes to a crosshair which would allow to select what to screesnhot.
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: gnome-screenshot 41.0-3
ProcVersionSignature: Ubuntu 6.17.0-5.5-generic 6.17.0-rc7
Uname: Linux 6.17.0-5-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 8 16:11:06 2025
SourcePackage: gnome-screenshot
UpgradeStatus: Upgraded to questing on 2025-10-06 (2 days ago)
** Affects: gnome-screenshot (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug questing wayland-session
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https://bugs.launchpad.net/bugs/2127090
Title:
screenshot under GNOME doesn't work
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