kernel: nouveau D[     DRM] evicting buffers...
kernel: nouveau D[     DRM] waiting for kernel channels to go idle...
kernel: nouveau D[     DRM] suspending client object trees...
kernel: nouveau D[     DRM] suspending kernel object tree...
kernel: nouveau D[     DRM] suspend running
kernel: nouveau D[     DRM] suspend notify
kernel: nouveau D[     DRM] suspend object
kernel: nouveau E[    PBUS][0000:01:00.0] MMIO write of 0x00000002 FAULT at 0x4188ac [ !ENGINE ]
kernel: nouveau D[     DRM] suspend completed with 0
kernel: nouveau D[     DRM] re-enabling device...
kernel: nouveau D[     DRM] resuming kernel object tree...
kernel: nouveau D[     DRM] init running
kernel: nouveau D[     DRM] init completed with 0
kernel: nouveau D[     DRM] resuming client object trees...
kernel: ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Pa
kernel: ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
kernel: ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Pa
kernel: nouveau D[     DRM] evicting buffers...
kernel: [drm:intel_dp_detect] [CONNECTOR:32:DP-1]
...
kernel: [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
kernel: nouveau D[     DRM] waiting for kernel channels to go idle...
kernel: nouveau D[     DRM] suspending client object trees...
kernel: nouveau D[     DRM] suspending kernel object tree...
kernel: nouveau D[     DRM] suspend running
kernel: nouveau D[     DRM] suspend notify
kernel: nouveau D[     DRM] suspend object
kernel: nouveau E[    PBUS][0000:01:00.0] MMIO write of 0x00000002 FAULT at 0x4188ac [ !ENGINE ]
kernel: nouveau D[     DRM] suspend completed with 0
kernel: nouveau D[     DRM] re-enabling device...
kernel: nouveau D[     DRM] resuming kernel object tree...
kernel: nouveau D[     DRM] init running
kernel: nouveau D[     DRM] init completed with 0
kernel: nouveau D[     DRM] resuming client object trees...
kernel: ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Pa
kernel: ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
kernel: ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Pa
kernel: nouveau D[     DRM] evicting buffers...
kernel: nouveau D[     DRM] waiting for kernel channels to go idle...
kernel: nouveau D[     DRM] suspending client object trees...
kernel: nouveau D[     DRM] suspending kernel object tree...
kernel: nouveau D[     DRM] suspend running
kernel: nouveau D[     DRM] suspend notify
kernel: nouveau D[     DRM] suspend object
kernel: nouveau D[     DRM] suspend completed with 0
kernel: [drm:intel_dp_detect] [CONNECTOR:32:DP-1]
...
kernel: [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
kernel: nouveau D[     DRM] re-enabling device...
kernel: nouveau D[     DRM] resuming kernel object tree...
kernel: nouveau D[     DRM] init running
kernel: hrtimer: interrupt took 240552560 ns
kernel: [drm:__gen7_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake to ack request.
kernel: nouveau E[    PPPP][0000:01:00.0] unhandled intr 0xbad00100
kernel: nouveau E[   PFIFO][0000:01:00.0] PIO_ERROR
kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ UNK1e ]
kernel: nouveau E[   PFIFO][0000:01:00.0] FB_FLUSH_TIMEOUT
kernel: nouveau E[   PFIFO][0000:01:00.0] DROPPED_MMU_FAULT 0xbad0011d
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0xbad00119bad0011a [PITCH_MASK_VIOLATION] from UNK02/G
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0xbad0011ebadf1100 [PDE] from IFB/GPC2/L1_3 on channel
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x0004050000 [PDE] from BAR1/GPC0/PE_1 on channel 0x08
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x8414100000 [PTE] from PBDMA1/GPC0/PE_2 on channel 0x
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x0083000000 [PDE] from MSPDEC/GPC0/L1_2 on channel 0x
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x2020020000 [PDE_SIZE] from CE1/PD on channel 0x82102
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x4208000000 [PDE] from PMU/GPC0/L1_0 on channel 0x811
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x4101022000 [PDE] from MSENC/GPC1/L1_0 on channel 0x2
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x2008200000 [PDE] from CE2/GPC2/PE_0 on channel 0x003
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x4000812000 [PDE] from UNK1c/GPC0/T1_0 on channel 0x1
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x6628828000 [PDE_SIZE] from UNK1d/GPC0/L1_0 on channe
kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at 0x0048022000 [PDE] from UNK1f/GPC1/PE_2 on channel 0x0
kernel: nouveau E[   PFIFO][0000:01:00.0] INTR 0x02500002
kernel: nouveau E[    PBUS][0000:01:00.0] MMIO write of 0x00000002 FAULT at 0x4188ac [ !ENGINE IBUS TIMEOUT ]
kernel: nouveau E[     PMC][0000:01:00.0] unknown intr 0x20c00014
kernel: sched: RT throttling activated
kernel: nouveau D[     DRM] init completed with 0
kernel: nouveau D[     DRM] resuming client object trees...

...X hang after some more minutes