Bug#1032286: gdm3: fails to change the background for the lock screen.

[eve]

Package: gdm3
Version: 43.0-3
Severity: normal
X-Debbugs-Cc: s3mx at waifu.club

Dear Maintainer,
   I can't seem to change the background for the lock screen. I have already
tried different pictures and it's always the same thing, right now it's set to
some blueish color which is the same color when you set the background image to
(none) using gnome-tweaks.
   * What led up to the situation?
  When i lock/unlock my system, the background for the lock screen does not
show the picture that i have already set with gnome-tweaks.
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
  So far i tried a guide that i found on gnome's website on how to change the
lock screen shield which has not fixed this issue.
   * What was the outcome of this action?
   No background image.
   * What outcome did you expect instead?
   To see the background picture that i have set on lock screen.

Version of gdm3 package: 43.0-3
Version of gnome-tweaks package: 42~beta-3
gnome-


-- System Information:
Debian Release: bookworm/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.1.0-5-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 gdm3 depends on:
ii  accountsservice                       22.08.8-6
ii  adduser                               3.131
ii  dbus [default-dbus-system-bus]        1.14.6-1
ii  dbus-bin                              1.14.6-1
ii  dbus-daemon                           1.14.6-1
ii  dconf-cli                             0.40.0-4
ii  dconf-gsettings-backend               0.40.0-4
ii  debconf [debconf-2.0]                 1.5.82
ii  gir1.2-gdm-1.0                        43.0-3
ii  gnome-session [x-session-manager]     43.0-1
ii  gnome-session-bin                     43.0-1
ii  gnome-session-common                  43.0-1
ii  gnome-settings-daemon                 43.0-4
ii  gnome-shell                           43.3-1
ii  gnome-terminal [x-terminal-emulator]  3.46.8-1
ii  gsettings-desktop-schemas             43.0-1
ii  libaccountsservice0                   22.08.8-6
ii  libaudit1                             1:3.0.9-1
ii  libc6                                 2.36-8
ii  libcanberra-gtk3-0                    0.30-10
ii  libcanberra0                          0.30-10
ii  libgdk-pixbuf-2.0-0                   2.42.10+dfsg-1+b1
ii  libgdm1                               43.0-3
ii  libglib2.0-0                          2.74.5-1
ii  libglib2.0-bin                        2.74.5-1
ii  libgtk-3-0                            3.24.36-4
ii  libgudev-1.0-0                        237-2
ii  libkeyutils1                          1.6.3-2
ii  libpam-modules                        1.5.2-6
ii  libpam-runtime                        1.5.2-6
ii  libpam-systemd [logind]               252.5-2
ii  libpam0g                              1.5.2-6
ii  librsvg2-common                       2.54.5+dfsg-1
ii  libselinux1                           3.4-1+b5
ii  libsystemd0                           252.5-2
ii  libx11-6                              2:1.8.3-3
ii  libxau6                               1:1.0.9-1
ii  libxcb1                               1.15-1
ii  libxdmcp6                             1:1.1.2-3
ii  polkitd                               122-3
ii  procps                                2:4.0.2-3
ii  systemd-sysv                          252.5-2
ii  ucf                                   3.0043+nmu1
ii  x11-common                            1:7.7+23
ii  x11-xserver-utils                     7.7+9+b1

Versions of packages gdm3 recommends:
ii  at-spi2-core                       2.46.0-5
ii  desktop-base                       12.0.3
ii  gnome-session [x-session-manager]  43.0-1
ii  x11-xkb-utils                      7.7+7
ii  xserver-xephyr                     2:21.1.7-1
ii  xserver-xorg                       1:7.7+23
ii  zenity                             3.44.0-1

Versions of packages gdm3 suggests:
pn  libpam-fprintd        <none>
ii  libpam-gnome-keyring  42.1-1+b1
pn  libpam-pkcs11         <none>
pn  libpam-sss            <none>
ii  orca                  43.1-1

-- debconf information:
  gdm3/daemon_name: /usr/sbin/gdm3
* shared/default-x-display-manager: gdm3