Created attachment 165662 [details]
dmesg log

SUMMARY
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After boot, there was no load splash screen - only the wallpaper and mouse cursor were displayed, it took several minutes for the lock screen login screen to be displayed.
Not sure how easy this is to reproduce, but I will list the last steps I've made prior to getting to this state (it happens on every boot now)

STEPS TO REPRODUCE
1. I've upgraded my packages using Discover
2. Installed powertop and arch-install-scripts using apt.
3. arch-chroot into my dual boot to make its grub the one to load the system (mount boot partition to /boot/efi, run grub-install and grub-mkconfig.)
4. boot into my other system
5. boot again to KDE Neon
6. after about a minute of waiting, switch to tty3
7. try to replace plasma (unsuccessful, crashed, but coredump seems to be empty?)
8. try pkcon update - failed 
9. save logs and switch back to tty1
10. after a while the login screen was displayed...

OBSERVED RESULT
There was no load splash screen - only the wallpaper and mouse cursor were displayed, it took several minutes for the lock screen login screen to be displayed.
Not sure how easy this is to reproduce, but I will list the last steps I've made prior to getting to this state (it happens on every boot now)

EXPECTED RESULT
To see the load splash screen and get the login screen once its done, or at least see the login screen after a few seconds - and not after a few minutes.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 6.0.80
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.1

ADDITIONAL INFORMATION

inxi:

System:
  Kernel: 6.5.0-15-generic x86_64 bits: 64 compiler: N/A
    Desktop: KDE Plasma 6.0.80 Distro: KDE neon 22.04 Unstable Edition
    base: Ubuntu 22.04 LTS Jammy
Machine:
  Type: Desktop System: Dell product: Precision 3630 Tower v: N/A
    serial: <superuser required>
  Mobo: Dell model: 0NNNCT v: A01 serial: <superuser required> UEFI: Dell
    v: 2.26.0 date: 12/08/2023
CPU:
  Info: 6-core model: Intel Core i7-8700 bits: 64 type: MT MCP
    arch: Coffee Lake rev: A cache: L1: 384 KiB L2: 1.5 MiB L3: 12 MiB
  Speed (MHz): avg: 836 high: 897 min/max: 800/4600 cores: 1: 883 2: 800
    3: 890 4: 884 5: 800 6: 897 7: 800 8: 800 9: 800 10: 800 11: 878 12: 800
    bogomips: 76799
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
  Device-1: Intel CoffeeLake-S GT2 [UHD Graphics 630]
    vendor: Dell CometLake-S driver: i915 v: kernel bus-ID: 00:02.0
  Device-2: NVIDIA GP104 [GeForce GTX 1080] vendor: Dell driver: nvidia
    v: 535.154.05 bus-ID: 01:00.0
  Display: wayland server: X.org v: 1.21.1.4 with: Xwayland v: 23.2.3
    compositor: kwin_wayland driver: X: loaded: modesetting,nvidia
    unloaded: fbdev,nouveau,vesa gpu: i915,nvidia resolution: 1920x1080
  OpenGL: renderer: NVIDIA GeForce GTX 1080/PCIe/SSE2
    v: 4.6.0 NVIDIA 535.154.05 direct render: Yes
Audio:
  Device-1: Intel Cannon Lake PCH cAVS vendor: Dell driver: snd_hda_intel
    v: kernel bus-ID: 00:1f.3
  Device-2: NVIDIA GP104 High Definition Audio vendor: Dell
    driver: snd_hda_intel v: kernel bus-ID: 01:00.1
  Sound Server-1: ALSA v: k6.5.0-15-generic running: yes
  Sound Server-2: PulseAudio v: 15.99.1 running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Intel Ethernet I219-LM vendor: Dell driver: e1000e v: kernel
    port: N/A bus-ID: 00:1f.6
  IF: eno1 state: up speed: 100 Mbps duplex: full mac: <filter>
RAID:
  Hardware-1: Intel SATA Controller [RAID mode] driver: ahci v: 3.0
    bus-ID: 00:17.0
Drives:
  Local Storage: total: 476.94 GiB used: 17.24 GiB (3.6%)
  ID-1: /dev/sda vendor: Micron model: 1100 SATA 512GB size: 476.94 GiB
Partition:
  ID-1: / size: 19.12 GiB used: 17.15 GiB (89.7%) fs: ext4 dev: /dev/sda6
  ID-2: /boot/efi size: 646 MiB used: 90.2 MiB (14.0%) fs: vfat
    dev: /dev/sda1
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 36.0 C pch: 43.0 C mobo: 36.0 C
  Fan Speeds (RPM): cpu: 1551 fan-2: 847
Info:
  Processes: 289 Uptime: 1h 13m Memory: 31.17 GiB used: 3.42 GiB (11.0%)
  Init: systemd runlevel: 5 Compilers: gcc: 11.4.0 Packages: 2209 Shell: Bash
  v: 5.1.16 inxi: 3.3.13



See attached logs below.