I just started getting these FAULTS
Running openSUSE Tumbelweed
kernel 4.19.5-1-default

Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: bus: MMIO read of 00000000
FAULT at 022554 [ IBUS ]
Dec 05 07:35:28 flisk kernel: fbcon: Taking over console
Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: bus: MMIO read of 00000000
FAULT at 10ac08 [ IBUS ]
Dec 05 07:35:28 flisk kernel: usb 1-4: New USB device found, idVendor=8087,
idProduct=0a2b, bcdDevice= 0.10
Dec 05 07:35:28 flisk kernel: usb 1-4: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
Dec 05 07:35:28 flisk kernel: usb 3-1: New USB device found, idVendor=0424,
idProduct=2137, bcdDevice=60.80
Dec 05 07:35:28 flisk kernel: usb 3-1: New USB device strings: Mfr=1,
Product=2, SerialNumber=0
Dec 05 07:35:28 flisk kernel: usb 3-1: Product: USB2137B
Dec 05 07:35:28 flisk kernel: usb 3-1: Manufacturer: SMSC
Dec 05 07:35:28 flisk kernel: hub 3-1:1.0: USB hub found
Dec 05 07:35:28 flisk kernel: hub 3-1:1.0: 7 ports detected
Dec 05 07:35:28 flisk kernel: vga_switcheroo: enabled
Dec 05 07:35:28 flisk kernel: [TTM] Zone  kernel: Available graphics memory:
16391158 kiB
Dec 05 07:35:28 flisk kernel: [TTM] Zone   dma32: Available graphics memory:
2097152 kiB
Dec 05 07:35:28 flisk kernel: [TTM] Initializing pool allocator
Dec 05 07:35:28 flisk kernel: [TTM] Initializing DMA pool allocator
Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB
Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: DRM: Pointer to TMDS table
invalid
Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: DRM: DCB version 4.0
Dec 05 07:35:28 flisk kernel: nouveau 0000:01:00.0: DRM: MM: using COPY for
buffer copies
Dec 05 07:35:28 flisk kernel: [drm] Initialized nouveau 1.3.1 20120801 for
0000:01:00.0 on minor 1
Dec 05 07:35:28 flisk kernel: usb 2-2: new SuperSpeed Gen 1 USB device number 2
using xhci_hcd
Dec 05 07:35:28 flisk kernel: usb 4-1: new SuperSpeed Gen 1 USB device number 2
using xhci_hcd

Should I try passing the nouveau.runpm=0 to see if that helps?