Public bug reported:
```
GNU Image Manipulation Program version 2.10.14
git-describe: GIMP_2_10_12-511-ga4f55d6c7e
C compiler:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
7.4.0-1ubuntu1~18.04.1' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr
--with-gcc-major-version-only --program-suffix=-7
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie
--with-system-zlib --with-target-system-zlib --enable-objc-gc=auto
--enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none --without-cuda-driver
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
using babl version 0.1.72 (compiled against version 0.1.72)
using GEGL version 0.4.18 (compiled against version 0.4.18)
using GLib version 2.56.4 (compiled against version 2.56.4)
using GdkPixbuf version 2.36.11 (compiled against version 2.36.11)
using GTK+ version 2.24.32 (compiled against version 2.24.32)
using Pango version 1.40.14 (compiled against version 1.40.14)
using Fontconfig version 2.12.6 (compiled against version 2.12.6)
using Cairo version 1.15.10 (compiled against version 1.15.10)
```
> GIMP-CRITICAL: gimp_display_shell_flush: assertion 'GIMP_IS_DISPLAY_SHELL
> (shell)' failed
Stack trace:
```
/usr/lib/libgimpbase-2.0.so.0(gimp_stack_trace_print+0x327) [0x7fa0efac4fc7]
gimp-2.10(gui_message+0x2ba) [0x5598cf09cafa]
gimp-2.10(gimp_show_message+0xfc) [0x5598cf36412c]
gimp-2.10(+0xd78ab) [0x5598cf0928ab]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_logv+0x25d) [0x7fa0ece561cd]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_log+0x8f) [0x7fa0ece5633f]
gimp-2.10(+0x1bcdc2) [0x5598cf177dc2]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_closure_invoke+0x19d)
[0x7fa0ed12a10d]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(+0x2305e) [0x7fa0ed13d05e]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit_valist+0xa75)
[0x7fa0ed145715]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit+0x8f)
[0x7fa0ed14612f]
gimp-2.10(gimp_display_shell_set_show_all+0x80) [0x5598cf17c520]
gimp-2.10(+0x1c2307) [0x5598cf17d307]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(+0x15900) [0x7fa0ed12f900]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_object_new_valist+0x3d0)
[0x7fa0ed1315c0]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_object_new+0x99)
[0x7fa0ed131939]
gimp-2.10(gimp_display_shell_new+0x151) [0x5598cf17a7d1]
gimp-2.10(gimp_display_new+0x1dc) [0x5598cf17876c]
gimp-2.10(+0xdc539) [0x5598cf097539]
gimp-2.10(file_open_with_proc_and_display+0x2f0) [0x5598cf439e70]
gimp-2.10(+0x118c13) [0x5598cf0d3c13]
gimp-2.10(+0x118f66) [0x5598cf0d3f66]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_closure_invoke+0x19d)
[0x7fa0ed12a10d]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(+0x2305e) [0x7fa0ed13d05e]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit_valist+0xa75)
[0x7fa0ed145715]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit+0x8f)
[0x7fa0ed14612f]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_closure_invoke+0x19d)
[0x7fa0ed12a10d]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(+0x2305e) [0x7fa0ed13d05e]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit_valist+0xa75)
[0x7fa0ed145715]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit+0x8f)
[0x7fa0ed14612f]
/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0(+0x8d64e) [0x7fa0f0a6064e]
/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0(+0x13238b) [0x7fa0f0b0538b]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_closure_invoke+0x19d)
[0x7fa0ed12a10d]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(+0x22de8) [0x7fa0ed13cde8]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit_valist+0x40f)
[0x7fa0ed1450af]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit+0x8f)
[0x7fa0ed14612f]
/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0(+0x2482bc) [0x7fa0f0c1b2bc]
/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0(gtk_propagate_event+0x1a6)
[0x7fa0f0b03726]
/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0(gtk_main_do_event+0x2fb)
[0x7fa0f0b03a2b]
/usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0(+0x5b02c) [0x7fa0f077902c]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x2e7)
[0x7fa0ece4f417]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x4c650) [0x7fa0ece4f650]
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_loop_run+0xc2)
[0x7fa0ece4f962]
gimp-2.10(app_run+0x350) [0x5598cf092470]
gimp-2.10(main+0x37c) [0x5598cf091d3c]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7fa0ec272b97]
gimp-2.10(_start+0x2a) [0x5598cf091eda]
```
** Affects: gimp (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1863084
Title:
GIMP encountered an error: GIMP-CRITICAL: gimp_display_shell_flush:
assertion 'GIMP_IS_DISPLAY_SHELL (shell)' failed
To manage notifications about this bug go to:
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