Comment 28 for bug 1684123

I think I'm also seeing this with Fedora 29 Beta, I was also seeing errors with updated Fedora 28.

[ 1.614055] nouveau: detected PR support, will not use DSM
[ 1.614243] nouveau 0000:01:00.0: NVIDIA GM108 (118070a2)
[ 1.629639] nouveau 0000:01:00.0: bios: version 82.08.3b.00.4b
[ 1.714600] nouveau 0000:01:00.0: fb: 2048 MiB DDR3
[ 1.714622] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]
[ 1.729900] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08 [ IBUS ]
[ 2.372521] nouveau 0000:01:00.0: DRM: VRAM: 2048 MiB
[ 2.372522] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[ 2.372526] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid
[ 2.372543] nouveau 0000:01:00.0: DRM: DCB version 4.0
[ 2.373356] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
[ 2.373363] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 1
[ 8.044183] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]
[ 9.126208] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]
[ 93.901280] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]
[ 101.777394] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]
[ 112.733004] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]

I'm also on a laptop (Asus Zenbook UX303U) with hybrid graphics (Skylake GT2 [HD Graphics 520] (rev 07) / GM108M [GeForce 940M] (rev a2)).