(New install) KDE Plasma unable to detect HDMI external monitor

Hello everyone,

I have installed endeavouros on a laptop equipped with an Nvidia 1660 Ti GPU and AMD Radeon Vega 10 GPU . The system is using the Wayland. However, when I connect an external monitor via HDMI, the monitor is not detected.
BTW, I have confirmed that the undetected monitor works on other devices (windows).

Here is the output information when the external monitor connected with HDMI.

$ inxi -Faz

System:
  Kernel: 6.10.7-arch1-1 arch: x86_64 bits: 64 compiler: gcc v: 14.2.1
    clocksource: hpet avail: acpi_pm
    parameters: initrd=\4fd57910100a406a906c61540b5e35c6\6.10.7-arch1-1\initrd
    nvme_load=YES nowatchdog rw
    root=UUID=2a16bb5b-f645-497d-982c-392f9c08c3a9
    resume=UUID=cea8cc3b-19a3-4d1a-8097-098eb148ebd8 rw
    root=UUID=2a16bb5b-f645-497d-982c-392f9c08c3a9
    resume=UUID=cea8cc3b-19a3-4d1a-8097-098eb148ebd8
    systemd.machine_id=4fd57910100a406a906c61540b5e35c6
  Desktop: KDE Plasma v: 6.1.4 tk: Qt v: N/A info: frameworks v: 6.5.0
    wm: kwin_wayland vt: 1 dm: SDDM Distro: EndeavourOS base: Arch Linux
Machine:
  Type: Laptop System: ASUSTeK product: TUF Gaming FX505DU_FX505DU v: 1.0
    serial: <superuser required>
  Mobo: ASUSTeK model: FX505DU v: 1.0 serial: <superuser required>
    uuid: <superuser required> UEFI: American Megatrends v: FX505DU.316
    date: 01/28/2021
Battery:
  ID-1: BAT0 charge: 12.3 Wh (37.0%) condition: 33.2/48.2 Wh (69.0%)
    volts: 10.8 min: 11.9 model: FX50442 type: Li-ion serial: N/A
    status: discharging
  Device-1: hidpp_battery_0 model: Logitech MX Anywhere 3 serial: <filter>
    charge: 50% rechargeable: yes status: discharging
CPU:
  Info: model: AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx bits: 64
    type: MT MCP arch: Zen/Zen+ note: check gen: 1 level: v3 note: check
    built: 2019 process: GF 12nm family: 0x17 (23) model-id: 0x18 (24)
    stepping: 1 microcode: 0x8108102
  Topology: cpus: 1x cores: 4 tpc: 2 threads: 8 smt: enabled cache:
    L1: 384 KiB desc: d-4x32 KiB; i-4x64 KiB L2: 2 MiB desc: 4x512 KiB L3: 4 MiB
    desc: 1x4 MiB
  Speed (MHz): avg: 1859 high: 2394 min/max: 1400/2300 boost: enabled
    scaling: driver: acpi-cpufreq governor: schedutil cores: 1: 2082 2: 1690
    3: 2197 4: 2142 5: 1853 6: 2394 7: 1279 8: 1240 bogomips: 36738
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  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: reg_file_data_sampling status: Not affected
  Type: retbleed mitigation: untrained return thunk; SMT vulnerable
  Type: spec_rstack_overflow mitigation: Safe RET
  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:
    disabled; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA TU116M [GeForce GTX 1660 Ti Mobile] vendor: ASUSTeK
    driver: nvidia v: 560.35.03 alternate: nouveau,nvidia_drm non-free: 550.xx+
    status: current (as of 2024-06; EOL~2026-12-xx) arch: Turing code: TUxxx
    process: TSMC 12nm FF built: 2018-2022 pcie: gen: 1 speed: 2.5 GT/s
    lanes: 8 link-max: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 01:00.0
    chip-ID: 10de:2191 class-ID: 0300
  Device-2: AMD Picasso/Raven 2 [Radeon Vega Series / Radeon Mobile Series]
    vendor: ASUSTeK driver: amdgpu v: kernel arch: GCN-5 code: Vega
    process: GF 14nm built: 2017-20 pcie: gen: 3 speed: 8 GT/s lanes: 16
    ports: active: eDP-1 empty: none bus-ID: 05:00.0 chip-ID: 1002:15d8
    class-ID: 0300 temp: 48.0 C
  Device-3: IMC Networks USB2.0 HD UVC WebCam driver: uvcvideo type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 5-1:2 chip-ID: 13d3:56a2
    class-ID: 0e02 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.13 with: Xwayland v: 24.1.2
    compositor: kwin_wayland driver: X: loaded: amdgpu,nvidia
    unloaded: modesetting alternate: fbdev,nouveau,nv,vesa dri: radeonsi
    gpu: nvidia,amdgpu display-ID: 0
  Monitor-1: eDP-1 res: 1600x900 size: N/A modes: N/A
  API: EGL v: 1.5 hw: drv: nvidia drv: amd radeonsi platforms: device: 0
    drv: nvidia device: 2 drv: radeonsi device: 3 drv: swrast gbm:
    drv: kms_swrast surfaceless: drv: nvidia wayland: drv: radeonsi x11:
    drv: radeonsi inactive: device-1
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: amd mesa v: 24.2.1-arch1.1
    glx-v: 1.4 direct-render: yes renderer: AMD Radeon Vega 10 Graphics
    (radeonsi raven LLVM 18.1.8 DRM 3.57 6.10.7-arch1-1) device-ID: 1002:15d8
    memory: 500 MiB unified: no display-ID: :1.0
  API: Vulkan v: 1.3.279 layers: 1 device: 0 type: discrete-gpu name: NVIDIA
    GeForce GTX 1660 Ti driver: nvidia v: 560.35.03 device-ID: 10de:2191
    surfaces: xcb,xlib
Audio:
  Device-1: NVIDIA TU116 High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: gen: 2 speed: 5 GT/s lanes: 8
    link-max: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 01:00.1
    chip-ID: 10de:1aeb class-ID: 0403
  Device-2: AMD Family 17h/19h HD Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    bus-ID: 05:00.6 chip-ID: 1022:15e3 class-ID: 0403
  API: ALSA v: k6.10.7-arch1-1 status: kernel-api
    tools: alsactl,alsamixer,amixer
  Server-1: PipeWire v: 1.2.3 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 RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: ASUSTeK driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s
    lanes: 1 port: e000 bus-ID: 02:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp2s0 state: down mac: <filter>
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel pcie: gen: 2
    speed: 5 GT/s lanes: 1 bus-ID: 04:00.0 chip-ID: 8086:2723 class-ID: 0280
  IF: wlan0 state: up mac: <filter>
  Info: services: NetworkManager, systemd-timesyncd, wpa_supplicant
Bluetooth:
  Device-1: Intel AX200 Bluetooth driver: btusb v: 0.8 type: USB rev: 2.0
    speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-4:3 chip-ID: 8087:0029
    class-ID: e001
  Report: btmgmt ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 5.2
    lmp-v: 11 status: discoverable: no pairing: no class-ID: 6c010c
Drives:
  Local Storage: total: 2.73 TiB used: 34.66 GiB (1.2%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: PNY model: CS3030 2TB SSD
    size: 1.82 TiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: CS303134 temp: 28.9 C
    scheme: GPT
  ID-2: /dev/sda maj-min: 8:0 vendor: Toshiba model: MQ04ABF100
    size: 931.51 GiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
    tech: HDD rpm: 5400 serial: <filter> fw-rev: 0J scheme: MBR
Partition:
  ID-1: / raw-size: 1.79 TiB size: 1.76 TiB (98.37%) used: 34.4 GiB (1.9%)
    fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
    compressor: zstd max-pool: 20%
  ID-1: swap-1 type: partition size: 33.87 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/nvme0n1p3 maj-min: 259:3
Sensors:
  System Temperatures: cpu: 48.6 C mobo: N/A gpu: amdgpu temp: 48.0 C
  Fan Speeds (rpm): cpu: 2400
Info:
  Memory: total: 32 GiB note: est. available: 30.79 GiB used: 3.56 GiB (11.5%)
  Processes: 282 Power: uptime: 24m states: freeze,mem,disk suspend: deep
    avail: s2idle wakeups: 0 hibernate: platform avail: shutdown, reboot,
    suspend, test_resume image: 12.27 GiB services: org_kde_powerdevil,
    power-profiles-daemon, upowerd Init: systemd v: 256 default: graphical
    tool: systemctl
  Packages: 1143 pm: pacman pkgs: 1126 libs: 256 tools: pamac,yay
    pm: flatpak pkgs: 17 Compilers: clang: 18.1.8 gcc: 14.2.1 Shell: Bash
    v: 5.2.32 running-in: konsole inxi: 3.3.35

$ xrandr

Screen 0: minimum 16 x 16, current 1920 x 1080, maximum 32767 x 32767
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1920x1080    119.93*+
   1440x1080    119.92  
   1400x1050    119.90  
   1280x1024    119.83  
   1280x960     119.89  
   1152x864     119.77  
   1024x768     119.80  
   800x600      119.85  
   640x480      119.52  
   320x240      117.34  
   1680x1050    119.89  
   1440x900     119.94  
   1280x800     119.85  
   1152x720     119.73  
   960x600      119.74  
   928x580      119.55  
   800x500      119.47  
   768x480      119.71  
   720x480      119.65  
   640x400      119.64  
   320x200      117.55  
   1600x900     119.95  
   1368x768     119.83  
   1280x720     119.86  
   1024x576     119.85  
   864x486      119.69  
   720x400      119.54  
   640x350      119.24  

Different articles in the archlinux documentation and the endeavour forum provide conflicting instructions, and I am feeling overwhelmed by this situation.
I would appreciate any insights or suggestions on other configurations or steps I might have missed, or if anyone has encountered and resolved a similar issue.

Have you checked the UEFI Bios settings for gpu to set hybrid, dedicated or integrated?