Dual GPU Dual Display Issues

Dual GPU Dual Display Issues

Hello,

I just installed Manjaro and am having trouble getting my triple display setup to work. I have two displays connected to the onboard AMD GPU and one display connected to an external NVIDIA GeForce 1050 Ti. The issue is that one of the GPUs does not output any images, and the displays are not being recognized.

Prior Fixing Attempts:

  • Swapped HDMI cables
  • Checked functionality on Windows
  • Reinstalled drivers (both OSS and non-OSS)
  • Tried different versions of the NVIDIA drivers (following the wiki “guide”)
  • Used the AUR version of the drivers (e.g., nvidia-open and nvidia-open-beta)

When using the “Visual-Linux” driver, it detects all my displays, but the display connected to the NVIDIA card shows half of the screen in white, with the cursor visible but windows appearing below it.

System Information:

  • Desktop Environment: GNOME
inxi -zv8
System:
  Kernel: 6.12.4-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 14.2.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.12-x86_64
    root=UUID=10ce4a16-fdf0-46de-839c-2f4ec5c6d0ce rw quiet splash
    resume=UUID=bcd3a6c5-f86e-4aaf-9165-2c976d1a78b5 udev.log_priority=3
    nvidia-drm.modeset=1
  Desktop: GNOME v: 47.2 tk: GTK v: 3.24.43 wm: gnome-shell
    tools: gsd-screensaver-proxy dm: GDM v: 47.0 Distro: Manjaro
    base: Arch Linux
Machine:
  Type: Desktop Mobo: Micro-Star model: B450M PRO-VDH MAX (MS-7A38) v: 8.0
    serial: <superuser required> uuid: <superuser required>
    UEFI: American Megatrends v: B.70 date: 06/10/2020
Battery:
  Message: No system battery data found. Is one present?
Memory:
  System RAM: total: 24 GiB available: 23.17 GiB used: 4.62 GiB (19.9%)
  Message: For most reliable report, use superuser + dmidecode.
  Array-1: capacity: 128 GiB slots: 4 modules: 4 EC: None
    max-module-size: 32 GiB note: est.
  Device-1: Channel-A DIMM 0 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 8 GiB speed: 2133 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64 manufacturer: Corsair
    part-no: CMW16GX4M2C3200C16 serial: N/A
  Device-2: Channel-A DIMM 1 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 8 GiB speed: 2133 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64 manufacturer: Corsair
    part-no: CMW16GX4M2C3200C16 serial: N/A
  Device-3: Channel-B DIMM 0 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 4 GiB speed: 2133 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64 manufacturer: N/A
    part-no: 3000 C16 Series serial: N/A
  Device-4: Channel-B DIMM 1 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 4 GiB speed: 2133 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64 manufacturer: N/A
    part-no: 3000 C16 Series serial: N/A
PCI Slots:
  Permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: AMD Ryzen 5 3400G with Radeon Vega Graphics 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: 0x8108109
  Topology: cpus: 1x dies: 1 clusters: 1 cores: 4 threads: 8 tpc: 2
    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: 2062 min/max: 1400/3700 boost: enabled scaling:
    driver: acpi-cpufreq governor: schedutil cores: 1: 2062 2: 2062 3: 2062
    4: 2062 5: 2062 6: 2062 7: 2062 8: 2062 bogomips: 59217
  Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1
    bmi2 bpext clflush clflushopt clzero cmov cmp_legacy constant_tsc cpb
    cpuid cr8_legacy cx16 cx8 de decodeassists extapic extd_apicid f16c
    flushbyasid fma fpu fsgsbase fxsr fxsr_opt ht hw_pstate ibpb irperf
    lahf_lm lbrv lm mca mce misalignsse mmx mmxext monitor movbe msr mtrr
    mwaitx nonstop_tsc nopl npt nrip_save nx osvw overflow_recov pae pat
    pausefilter pclmulqdq pdpe1gb perfctr_core perfctr_llc perfctr_nb
    pfthreshold pge pni popcnt pse pse36 rapl rdrand rdseed rdtscp rep_good
    sep sev sev_es sha_ni skinit smap smca smep ssbd sse sse2 sse4_1 sse4_2
    sse4a ssse3 succor svm_lock syscall tce topoext tsc tsc_scale
    v_vmsave_vmload vgif vmcb_clean vme vmmcall wdt xgetbv1 xsave xsavec
    xsaveerptr xsaveopt
  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 GP107 [GeForce GTX 1050 Ti] vendor: ASUSTeK driver: nvidia
    v: 550.135 alternate: nouveau,nvidia_drm non-free: 550/565.xx+
    status: current (as of 2025-01; EOL~2026-12-xx) arch: Pascal code: GP10x
    process: TSMC 16nm built: 2016-2021 pcie: gen: 1 speed: 2.5 GT/s lanes: 8
    link-max: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 10:00.0
    chip-ID: 10de:1c82 class-ID: 0300
  Device-2: Advanced Micro Devices [AMD/ATI] Picasso/Raven 2 [Radeon Vega
    Series / Radeon Mobile Series] vendor: Micro-Star MSI 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: DP-2,HDMI-A-1
    empty: DP-1,DVI-D-1 bus-ID: 29:00.0 chip-ID: 1002:15d8 class-ID: 0300
    temp: 36.0 C
  Display: wayland server: X.org v: 1.21.1.14 with: Xwayland v: 24.1.4
    compositor: gnome-shell driver: X: loaded: nvidia gpu: amdgpu display-ID: 0
  Monitor-1: DP-2 model: Dell E2311H serial: <filter> built: 2011
    res: 1920x1080 dpi: 96 gamma: 1.2 chroma: red: x: 0.627 y: 0.349 green:
    x: 0.337 y: 0.624 blue: x: 0.153 y: 0.051 white: x: 0.314 y: 0.329
    size: 510x287mm (20.08x11.3") diag: 585mm (23") ratio: 16:9
    modes: 1920x1080, 1680x1050, 1280x1024, 1440x900, 1280x800, 1152x864,
    1280x720, 1024x768, 800x600, 640x480, 720x400
  Monitor-2: HDMI-A-1 model: Acer K242HYL serial: <filter> built: 2020
    res: 1920x1080 dpi: 93 gamma: 1.2 chroma: red: x: 0.655 y: 0.333 green:
    x: 0.318 y: 0.624 blue: x: 0.153 y: 0.078 white: x: 0.314 y: 0.329
    size: 527x296mm (20.75x11.65") diag: 604mm (23.8") ratio: 16:9
    modes: 1920x1080, 1680x1050, 1280x1024, 1440x900, 1280x960, 1280x800,
    1152x864, 1280x720, 1024x768, 832x624, 800x600, 720x576, 720x480,
    640x480, 720x400
  API: EGL v: 1.5 hw: drv: nvidia drv: amd radeonsi platforms: device: 0
    drv: nvidia device: 1 drv: radeonsi device: 2 drv: swrast gbm:
    drv: kms_swrast surfaceless: drv: nvidia wayland: drv: radeonsi x11:
    drv: radeonsi
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: amd mesa v: 24.2.8-arch1.1
    glx-v: 1.4 direct-render: yes renderer: AMD Radeon Vega 11 Graphics
    (radeonsi raven LLVM 18.1.8 DRM 3.59 6.12.4-1-MANJARO)
    device-ID: 1002:15d8 memory: 250 MiB unified: no display-ID: :0.0
  Info: Tools: api: eglinfo,glxinfo gpu: nvidia-settings,nvidia-smi
    x11: xprop,xrandr
Audio:
  Device-1: NVIDIA GP107GL High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 8
    link-max: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 10:00.1
    chip-ID: 10de:0fb9 class-ID: 0403
  Device-2: Advanced Micro Devices [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP
    Audio driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    bus-ID: 29:00.1 chip-ID: 1002:15de class-ID: 0403
  Device-3: Razer USA RZ19-0229 Gaming Microphone
    driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 mode: 1.1 bus-ID: 3-3:3 chip-ID: 1532:0511 class-ID: 0300
    serial: <filter>
  API: ALSA v: k6.12.4-1-MANJARO status: kernel-api tools: N/A
  Server-1: JACK v: 1.9.22 status: off tools: N/A
  Server-2: PipeWire v: 1.2.7 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active
    tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: Micro-Star MSI driver: r8168 v: 8.054.00-NAPI modules: r8169 pcie:
    gen: 1 speed: 2.5 GT/s lanes: 1 port: e000 bus-ID: 25:00.0
    chip-ID: 10ec:8168 class-ID: 0200
  IF: enp37s0 state: up speed: 100 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: dynamic noprefixroute scope: global
  IP v6: <filter> type: noprefixroute scope: link
  Info: services: NetworkManager, systemd-timesyncd, wpa_supplicant
  WAN IP: <filter>
Bluetooth:
  Device-1: Cambridge Silicon Radio Bluetooth Dongle (HCI mode) driver: btusb
    v: 0.8 type: USB rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-10:2
    chip-ID: 0a12:0001 class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 1.13 TiB used: 10.84 GiB (0.9%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/sda maj-min: 8:0 vendor: Toshiba model: HDWD110
    size: 931.51 GiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
    tech: HDD rpm: 7200 serial: <filter> fw-rev: A8R0 scheme: GPT
  ID-2: /dev/sdb maj-min: 8:16 vendor: Patriot model: Burst size: 223.57 GiB
    block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s tech: SSD
    serial: <filter> fw-rev: P1.3 scheme: GPT
  ID-3: /dev/sdc maj-min: 8:32 vendor: Silicon Motion model: 1000
    size: 3.72 GiB block-size: physical: 512 B logical: 512 B type: USB rev: 2.0
    spd: 480 Mb/s lanes: 1 mode: 2.0 tech: N/A serial: <filter> scheme: MBR
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 214.48 GiB size: 210.05 GiB (97.94%)
    used: 10.84 GiB (5.2%) fs: ext4 dev: /dev/sdb2 maj-min: 8:18 label: N/A
    uuid: 10ce4a16-fdf0-46de-839c-2f4ec5c6d0ce
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 288 KiB (0.1%) fs: vfat dev: /dev/sdb1 maj-min: 8:17 label: N/A
    uuid: 2BE2-422E
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: no
  ID-1: swap-1 type: partition size: 8.8 GiB used: 0 KiB (0.0%) priority: -2
    dev: /dev/sdb3 maj-min: 8:19 label: swap
    uuid: bcd3a6c5-f86e-4aaf-9165-2c976d1a78b5
Unmounted:
  ID-1: /dev/sda1 maj-min: 8:1 size: 16 MiB fs: <superuser required>
    label: N/A uuid: N/A
  ID-2: /dev/sda2 maj-min: 8:2 size: 931.5 GiB fs: ntfs label: N/A
    uuid: 3C32CFDA32CF9774
  ID-3: /dev/sdc1 maj-min: 8:33 size: 2.76 GiB fs: iso9660
  ID-4: /dev/sdc2 maj-min: 8:34 size: 4 MiB fs: vfat label: MISO_EFI
    uuid: 96E6-0934
USB:
  Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 10 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Device-1: 1-10:2 info: Cambridge Silicon Radio Bluetooth Dongle (HCI mode)
    type: bluetooth driver: btusb interfaces: 2 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 chip-ID: 0a12:0001
    class-ID: e001
  Hub-2: 2-0:1 info: super-speed hub ports: 4 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-3: 3-0:1 info: hi-speed hub with single TT ports: 4 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Device-1: 3-2:2 info: Razer USA RZ01-0321 Gaming Mouse [DeathAdder V2]
    type: mouse,keyboard driver: hid-generic,usbhid interfaces: 4 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
    chip-ID: 1532:0084 class-ID: 0300
  Device-2: 3-3:3 info: Razer USA RZ19-0229 Gaming Microphone
    type: audio,HID driver: hid-generic,snd-usb-audio,usbhid interfaces: 4
    rev: 1.1 speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 500mA
    chip-ID: 1532:0511 class-ID: 0300 serial: <filter>
  Device-3: 3-4:4 info: Silicon Motion - Taiwan (formerly Feiya ) Flash
    Drive type: mass storage driver: usb-storage interfaces: 1 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 500mA
    chip-ID: 090c:1000 class-ID: 0806 serial: <filter>
  Hub-4: 4-0:1 info: super-speed hub ports: 4 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-5: 5-0:1 info: hi-speed hub with single TT ports: 1 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Device-1: 5-1:2 info: Logitech G213 Prodigy Gaming Keyboard
    type: keyboard,HID driver: hid-generic,usbhid interfaces: 2 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 500mA
    chip-ID: 046d:c336 class-ID: 0300 serial: <filter>
  Hub-6: 6-0:1 info: super-speed hub ports: 1 rev: 3.1
    speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
    class-ID: 0900
Sensors:
  System Temperatures: cpu: 36.5 C mobo: 35.5 C gpu: amdgpu temp: 36.0 C
  Fan Speeds (rpm): N/A
Repos:
  Packages: pm: pacman pkgs: 909 libs: 296 tools: gnome-software,pamac,yay
  Active pacman repo servers in: /etc/pacman.d/mirrorlist
    1: https://mirrors.sonic.net/manjaro/stable/$repo/$arch
    2: https://bd.mirror.vanehost.com/Manjaro/stable/$repo/$arch
    3: http://free.nchc.org.tw/manjaro/stable/$repo/$arch
Processes:
  CPU top: 5 of 310
  1: cpu: 100% command: ps pid: 7547 mem: 3.57 MiB (0.0%)
  2: cpu: 31.3% command: firefox pid: 1864 mem: 830.6 MiB (3.5%)
  3: cpu: 23.1% command: firefox pid: 2026 mem: 154.9 MiB (0.6%)
  4: cpu: 14.0% command: firefox pid: 2177 mem: 415.3 MiB (1.7%)
  5: cpu: 13.1% command: gnome-shell pid: 1336 mem: 322.4 MiB (1.3%)
  Memory top: 5 of 310
  1: mem: 830.6 MiB (3.5%) command: firefox pid: 1864 cpu: 31.3%
  2: mem: 430.2 MiB (1.8%) command: firefox pid: 2304 cpu: 2.9%
  3: mem: 415.3 MiB (1.7%) command: firefox pid: 2177 cpu: 14.0%
  4: mem: 369.3 MiB (1.5%) command: firefox pid: 4057 cpu: 4.5%
  5: mem: 322.4 MiB (1.3%) command: gnome-shell pid: 1336 cpu: 13.1%
Info:
  Processes: 310 Power: uptime: 42m states: freeze,mem,disk suspend: deep
    avail: s2idle wakeups: 0 hibernate: platform avail: shutdown, reboot,
    suspend, test_resume image: 9.23 GiB services: gsd-power,upowerd
    Init: systemd v: 256 default: graphical tool: systemctl
  Compilers: gcc: 14.2.1 Shell: Bash v: 5.2.37 running-in: gnome-terminal
    inxi: 3.3.37

Kernel Information:

- Currently running: `6.12.4-1-MANJARO (linux612)`
- Installed kernels:
  - linux612

PCI Devices:

lspci -k
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
	Subsystem: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: pcieport
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: pcieport
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
	Subsystem: Device 7a38:1462
	Kernel driver in use: pcieport
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
	Subsystem: Device 7a38:1462
	Kernel driver in use: pcieport
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: piix4_smbus
	Kernel modules: i2c_piix4, sp5100_tco
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
	Kernel driver in use: k10temp
	Kernel modules: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
10:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] (rev a1)
	Subsystem: ASUSTeK Computer Inc. Device 864b
	Kernel driver in use: nvidia
	Kernel modules: nouveau, nvidia_drm, nvidia
10:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
	Subsystem: ASUSTeK Computer Inc. Device 864b
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
12:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 xHCI Compliant Host Controller (rev 01)
	Subsystem: ASMedia Technology Inc. Device 1142
	Kernel driver in use: xhci_hcd
12:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01)
	Subsystem: ASMedia Technology Inc. Device 1062
	Kernel driver in use: ahci
12:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Bridge (rev 01)
	Subsystem: ASMedia Technology Inc. Device 0201
	Kernel driver in use: pcieport
20:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
	Subsystem: ASMedia Technology Inc. Device 3306
	Kernel driver in use: pcieport
20:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
	Subsystem: ASMedia Technology Inc. Device 3306
	Kernel driver in use: pcieport
20:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
	Subsystem: ASMedia Technology Inc. Device 3306
	Kernel driver in use: pcieport
20:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
	Subsystem: ASMedia Technology Inc. Device 3306
	Kernel driver in use: pcieport
25:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 15)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: r8168
	Kernel modules: r8169, r8168
29:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series] (rev c8)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu
29:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
	Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
29:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: ccp
	Kernel modules: ccp
29:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: xhci_hcd
29:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: xhci_hcd
2a:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
	Kernel driver in use: ahci

Drivers

mhwd -li
> Installed PCI configs:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
            video-vesa            2017.03.12                true            PCI
           video-linux            2024.05.06                true            PCI
video-hybrid-amd-nvidia-prime            2023.03.23               false            PCI
     video-modesetting            2020.01.13                true            PCI
         network-r8168            2023.09.12                true            PCI

Warning: No installed USB configs!

Relevant Error Messages:

$ journalctl --boot=-1 --priority=3 --catalog --no-pager
Jan 13 21:36:10 jodokus-ms7a38 kernel: amdgpu 0000:29:00.0: amdgpu: Secure display: Generic Failure.
Jan 13 21:36:10 jodokus-ms7a38 kernel: amdgpu 0000:29:00.0: amdgpu: SECUREDISPLAY: query securedisplay TA failed. ret 0x0

Any information or suggestions would be greatly appreciated.

Have you compared a live ISO boot of Plasma? With Plasma & sddm you could also boot into an X11 session.

There is an Archwiki entry which could be helpful:

https://wiki.archlinux.org/title/NVIDIA/Troubleshooting#Multi-monitor

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