Bug 2342294

The latest update to xdg-desktop-portal (1.18.4-4.fc41.x86_64) causes GNOME to ignore the Dark Style switch setting and only renders applications in light mode.  Looking at the journal, the xdg-desktop-portal process has crashed with the below stack trace.  Downgrading the package to xdg-desktop-portal-1.18.4-2.fc41.x86_64 fixes it for me.

Message: Process 616820 (xdg-desktop-por) of user 1000 dumped core.

Module libnss_systemd.so.2 from rpm systemd-256.11-1.fc41.x86_64
Module libnss_sss.so.2 from rpm sssd-2.10.1-1.fc41.x86_64
Module libgvfscommon.so from rpm gvfs-1.56.1-1.fc41.x86_64
Module libgvfsdbus.so from rpm gvfs-1.56.1-1.fc41.x86_64
Module libblkid.so.1 from rpm util-linux-2.40.4-1.fc41.x86_64
Module libcap.so.2 from rpm libcap-2.70-4.fc41.x86_64
Module libffi.so.8 from rpm libffi-3.4.6-3.fc41.x86_64
Module libselinux.so.1 from rpm libselinux-3.7-5.fc41.x86_64
Module libmount.so.1 from rpm util-linux-2.40.4-1.fc41.x86_64
Module libz.so.1 from rpm zlib-ng-2.2.3-1.fc41.x86_64
Module libgmodule-2.0.so.0 from rpm glib2-2.82.2-1.fc41.x86_64
Module libpcre2-8.so.0 from rpm pcre2-10.44-1.fc41.1.x86_64
Module libsystemd.so.0 from rpm systemd-256.11-1.fc41.x86_64
Module libpipewire-0.3.so.0 from rpm pipewire-1.2.7-1.fc41.x86_64
Module libjson-glib-1.0.so.0 from rpm json-glib-1.10.0-1.fc41.x86_64
Module libgobject-2.0.so.0 from rpm glib2-2.82.2-1.fc41.x86_64
Module libgio-2.0.so.0 from rpm glib2-2.82.2-1.fc41.x86_64
Module libglib-2.0.so.0 from rpm glib2-2.82.2-1.fc41.x86_64
Module xdg-desktop-portal from rpm xdg-desktop-portal-1.18.4-4.fc41.x86_64
Stack trace of thread 616820:
#0  0x000055fdd469c530 n/a (xdg-desktop-portal + 0x35530)
#1  0x000055fdd46a7410 n/a (xdg-desktop-portal + 0x40410)
#2  0x000055fdd46d8c44 n/a (xdg-desktop-portal + 0x71c44)
#3  0x00007f9fabf21842 connection_get_cb.lto_priv.0 (libgio-2.0.so.0 + 0xe3842)
#4  0x00007f9fabebaccc g_task_return_now (libgio-2.0.so.0 + 0x7cccc)
#5  0x00007f9fabebe993 g_task_return (libgio-2.0.so.0 + 0x80993)
#6  0x00007f9fabf1ca12 bus_get_async_initable_cb (libgio-2.0.so.0 + 0xdea12)
#7  0x00007f9fabebaccc g_task_return_now (libgio-2.0.so.0 + 0x7cccc)
#8  0x00007f9fabebad05 complete_in_idle_cb (libgio-2.0.so.0 + 0x7cd05)
#9  0x00007f9fac054add g_idle_dispatch (libglib-2.0.so.0 + 0x46add)
#10 0x00007f9fac04e28c g_main_context_dispatch_unlocked.lto_priv.0 (libglib-2.0.so.0 + 0x4028c)
#11 0x00007f9fac0ae7b8 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0xa07b8)
#12 0x00007f9fac054377 g_main_loop_run (libglib-2.0.so.0 + 0x46377)
#13 0x000055fdd46732af n/a (xdg-desktop-portal + 0xc2af)
#14 0x00007f9fab9e7248 __libc_start_call_main (libc.so.6 + 0x3248)
#15 0x00007f9fab9e730b __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x330b)
#16 0x000055fdd4673915 n/a (xdg-desktop-portal + 0xc915)

Stack trace of thread 616823:
#0  0x00007f9fabacb930 ppoll (libc.so.6 + 0xe7930)
#1  0x00007f9fac0ae8a3 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0xa08a3)
#2  0x00007f9fac054377 g_main_loop_run (libglib-2.0.so.0 + 0x46377)
#3  0x00007f9fabf22662 gdbus_shared_thread_func.lto_priv.0 (libgio-2.0.so.0 + 0xe4662)
#4  0x00007f9fac080d43 g_thread_proxy (libglib-2.0.so.0 + 0x72d43)
#5  0x00007f9faba55168 start_thread (libc.so.6 + 0x71168)
#6  0x00007f9fabad914c __clone3 (libc.so.6 + 0xf514c)

Stack trace of thread 616822:
#0  0x00007f9fabad6f1d syscall (libc.so.6 + 0xf2f1d)
#1  0x00007f9fac078e1d g_cond_wait (libglib-2.0.so.0 + 0x6ae1d)
#2  0x00007f9fac01868b g_async_queue_pop_intern_unlocked (libglib-2.0.so.0 + 0xa68b)
#3  0x00007f9fac081a23 g_thread_pool_spawn_thread (libglib-2.0.so.0 + 0x73a23)
#4  0x00007f9fac080d43 g_thread_proxy (libglib-2.0.so.0 + 0x72d43)
#5  0x00007f9faba55168 start_thread (libc.so.6 + 0x71168)
#6  0x00007f9fabad914c __clone3 (libc.so.6 + 0xf514c)

Stack trace of thread 616824:
#0  0x00007f9fabad6f1d syscall (libc.so.6 + 0xf2f1d)
#1  0x00007f9fac079ae0 g_cond_wait_until (libglib-2.0.so.0 + 0x6bae0)
#2  0x00007f9fac018653 g_async_queue_pop_intern_unlocked (libglib-2.0.so.0 + 0xa653)
#3  0x00007f9fac0825ba g_thread_pool_thread_proxy.lto_priv.0 (libglib-2.0.so.0 + 0x745ba)
#4  0x00007f9fac080d43 g_thread_proxy (libglib-2.0.so.0 + 0x72d43)
#5  0x00007f9faba55168 start_thread (libc.so.6 + 0x71168)
#6  0x00007f9fabad914c __clone3 (libc.so.6 + 0xf514c)

Stack trace of thread 616821:
#0  0x00007f9fabacb930 ppoll (libc.so.6 + 0xe7930)
#1  0x00007f9fac0ae8a3 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0xa08a3)
#2  0x00007f9fac04f783 g_main_context_iteration (libglib-2.0.so.0 + 0x41783)
#3  0x00007f9fac04f7e1 glib_worker_main (libglib-2.0.so.0 + 0x417e1)
#4  0x00007f9fac080d43 g_thread_proxy (libglib-2.0.so.0 + 0x72d43)
#5  0x00007f9faba55168 start_thread (libc.so.6 + 0x71168)
#6  0x00007f9fabad914c __clone3 (libc.so.6 + 0xf514c)
ELF object binary architecture: AMD x86-64



Reproducible: Always

Steps to Reproduce:
1. Log in to a GNOME account
2. Select "Dark style" in the Quick Settings menu
3. Start an application that normally respects light/dark style (e.g. Text Editor)
Actual Results:  
The application uses light mode.

Expected Results:  
The application should use dark mode.