Error message during boot up. 
This message appears during boot up and just before KDE desktop is active.
It displays regardless of which Linux kernel is used and it occurs on PC and laptop.
I use MX-Linux 23.2, KDE Plasma

Starting INIT Script for Simple Desktop Display Manager:  sddmerror: unexpectedly disconnected from Boot Status Daemon

Computer Statistics:

[CODE]System:
  Kernel: 6.1.0-10-amd64 [6.1.38-2] arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.1.0-10-amd64 root=UUID=<filter> ro quiet splash
  Desktop: KDE Plasma v: 5.27.5 wm: kwin_x11 vt: 7 dm: SDDM Distro: MX-23.2_KDE_x64 Libretto
    July 31 2023 base: Debian GNU/Linux 12 (bookworm)
Machine:
  Type: Desktop System: ASUS product: N/A v: N/A serial: <superuser required>
  Mobo: ASUSTeK model: PRIME B450M-A II v: Rev X.0x serial: <superuser required>
    UEFI: American Megatrends v: 4202 date: 06/16/2023
CPU:
  Info: model: AMD Ryzen 5 3600 bits: 64 type: MT MCP arch: Zen 2 gen: 3 level: v3 note: check
    built: 2020-22 process: TSMC n7 (7nm) family: 0x17 (23) model-id: 0x71 (113) stepping: 0
    microcode: 0x8701030
  Topology: cpus: 1x cores: 6 tpc: 2 threads: 12 smt: enabled cache: L1: 384 KiB
    desc: d-6x32 KiB; i-6x32 KiB L2: 3 MiB desc: 6x512 KiB L3: 32 MiB desc: 2x16 MiB
  Speed (MHz): avg: 2199 high: 2200 min/max: 2200/4208 boost: enabled scaling:
    driver: acpi-cpufreq governor: ondemand cores: 1: 2200 2: 2200 3: 2196 4: 2200 5: 2200 6: 2200
    7: 2200 8: 2200 9: 2200 10: 2200 11: 2200 12: 2200 bogomips: 86246
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
  Vulnerabilities:
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: retbleed mitigation: untrained return thunk; SMT enabled with STIBP protection
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 mitigation: Retpolines, IBPB: conditional, STIBP: always-on, RSB filling,
    PBRSB-eIBRS: Not affected
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GK208B [GeForce GT 710] vendor: PNY driver: nouveau v: kernel non-free:
    series: 470.xx+ status: legacy-active (EOL~2023/24) arch: Fermi 2 code: GF119/GK208
    process: TSMC 28nm built: 2010-16 pcie: gen: 2 speed: 5 GT/s lanes: 8 ports: active: HDMI-A-1
    empty: DVI-D-1,VGA-1 bus-ID: 08:00.0 chip-ID: 10de:128b class-ID: 0300 temp: 32.0 C
  Display: x11 server: X.Org v: 1.21.1.7 with: Xwayland v: 22.1.9 compositor: kwin_x11 driver: X:
    loaded: modesetting unloaded: fbdev,vesa dri: nouveau gpu: nouveau display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.00x11.22") s-diag: 582mm (22.93")
  Monitor-1: HDMI-A-1 mapped: HDMI-1 model: Samsung LS32B30 serial: <filter> built: 2022
    res: 1920x1080 dpi: 70 gamma: 1.2 size: 698x393mm (27.48x15.47") diag: 184mm (7.2")
    ratio: 16:9, 16:10 modes: max: 1920x1080 min: 720x400
  API: OpenGL v: 4.3 Mesa 23.1.2-1~mx23ahs renderer: NV106 direct-render: Yes
Audio:
  Device-1: NVIDIA GK208 HDMI/DP Audio vendor: PNY driver: snd_hda_intel v: kernel pcie: gen: 2
    speed: 5 GT/s lanes: 8 bus-ID: 08:00.1 chip-ID: 10de:0e0f class-ID: 0403
  Device-2: AMD Starship/Matisse HD Audio vendor: ASUSTeK driver: snd_hda_intel v: kernel pcie:
    gen: 4 speed: 16 GT/s lanes: 16 bus-ID: 0a:00.4 chip-ID: 1022:1487 class-ID: 0403
  API: ALSA v: k6.1.0-10-amd64 status: kernel-api tools: alsamixer,amixer
  Server-1: PipeWire v: 1.0.0 status: active with: 1: pipewire-pulse status: active
    2: wireplumber status: active 3: pipewire-alsa type: plugin 4: pw-jack type: plugin
    tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: ASUSTeK PRIME B450M-A
    driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1 port: f000 bus-ID: 07:00.0
    chip-ID: 10ec:8168 class-ID: 0200
  IF: eth0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:
  Local Storage: total: 465.76 GiB used: 36.54 GiB (7.8%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/sda maj-min: 8:0 vendor: Samsung model: SSD 870 EVO 500GB size: 465.76 GiB
    block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s type: SSD serial: <filter> rev: 2B6Q
    scheme: GPT
Partition:
  ID-1: / raw-size: 465.51 GiB size: 457.13 GiB (98.20%) used: 36.54 GiB (8.0%) fs: ext4
    dev: /dev/sda2 maj-min: 8:2
  ID-2: /boot/efi raw-size: 256 MiB size: 252 MiB (98.46%) used: 274 KiB (0.1%) fs: vfat
    dev: /dev/sda1 maj-min: 8:1
Swap:
  Kernel: swappiness: 15 (default 60) cache-pressure: 100 (default)
  ID-1: swap-1 type: file size: 4 GiB used: 0 KiB (0.0%) priority: -2 file: /swap/swap
Sensors:
  System Temperatures: cpu: 31.2 C mobo: N/A gpu: nouveau temp: 32.0 C
  Fan Speeds (RPM): N/A
Repos:
  Packages: pm: dpkg pkgs: 2846 libs: 1668 tools: apt,apt-get,aptitude,nala,synaptic pm: rpm
    pkgs: 0 pm: flatpak pkgs: 0
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list
    1: deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main
  Active apt repos in: /etc/apt/sources.list.d/debian-stable-updates.list
    1: deb http://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware
  Active apt repos in: /etc/apt/sources.list.d/debian.list
    1: deb http://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware
    2: deb http://security.debian.org/debian-security/ bookworm-security main contrib non-free non-free-firmware
    3: deb-src http://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware
    4: deb http://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware
  Active apt repos in: /etc/apt/sources.list.d/mx.list
    1: deb http://mirrors.rit.edu/mxlinux/mx-packages/mx/repo/ bookworm main non-free
    2: deb http://mirrors.rit.edu/mxlinux/mx-packages/mx/repo/ bookworm ahs
  Active apt repos in: /etc/apt/sources.list.d/winehq-bookworm.sources
    1: deb [arch=amd64 i386] https://dl.winehq.org/wine-builds/debian bookworm main
Info:
  Processes: 262 Uptime: 29m wakeups: 1 Memory: 15.5 GiB used: 2.58 GiB (16.6%) Init: SysVinit
  v: 3.06 runlevel: 5 default: graphical tool: systemctl Compilers: gcc: 12.2.0 alt: 12
  Client: shell wrapper v: 5.2.15-release inxi: 3.3.26
Boot Mode: UEFI[/CODE]