Bug 177131

Summary: Nouveau: GPU lockup regression with Linux 4.8
Product: Drivers Reporter: Bastian Beranek (bastian.beischer)
Component: Video(DRI - non Intel)Assignee: drivers_video-dri
Status: NEW ---    
Severity: normal CC: bastian.beischer
Priority: P1    
Hardware: x86-64   
OS: Linux   
Kernel Version: 4.8.1 Subsystem:
Regression: No Bisected commit-id:

Description Bastian Beranek 2016-10-09 19:47:27 UTC 
Hello,

I'm running Arch Linux x86_64 (testing repository) on a Lenovo T420 Laptop. Arch just recently shipped the kernels 4.8 and 4.8.1 and since then I experience the following lockup (lines from journalctl | grep kernel | grep nouveau):

Oct 09 16:41:27 winterfell kernel: fb: switching to nouveaufb from VESA VGA
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: NVIDIA GF119 (0d9170a1)
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: bios: version 75.19.15.01.02
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: fb: 1024 MiB DDR3
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: VRAM: 1024 MiB
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: TMDS table version 2.0
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB version 4.0
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 00: 01800323 00010034
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 01: 02811300 00000000
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 02: 028223a6 0f220010
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 03: 02822362 00020010
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 04: 048333b6 0f220010
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 05: 04833372 00020010
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 06: 088443c6 0f220010
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB outp 07: 08844382 00020010
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB conn 00: 00000040
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB conn 01: 00000100
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB conn 02: 00101246
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB conn 03: 00202346
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: DCB conn 04: 00410446
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: MM: using COPY0 for buffer copies
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: DRM: allocated 1600x1024 fb: 0x60000, bo ffff8802137b4c00
Oct 09 16:41:27 winterfell kernel: fbcon: nouveaufb (fb0) is primary device
Oct 09 16:41:27 winterfell kernel: nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
Oct 09 16:41:27 winterfell kernel: [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 0
Oct 09 16:43:00 winterfell kernel: nouveau 0000:01:00.0: fifo: read fault at 0000360000 engine 00 [PGRAPH] client 14 [CCACHE] reason 02 [PAGE_NOT_PRESENT] on channel 6 [003fbab000 Xorg[623]]
Oct 09 16:43:00 winterfell kernel: nouveau 0000:01:00.0: fifo: gr engine fault on channel 6, recovering...
Oct 09 16:48:16 winterfell kernel: nouveau 0000:01:00.0: DRM: GPU lockup - switching to software fbcon
Oct 09 16:48:21 winterfell kernel: nouveau 0000:01:00.0: Xorg[623]: failed to idle channel 6 [Xorg[623]]
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: Xorg[623]: failed to idle channel 6 [Xorg[623]]
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: chid 0 mthd 0080 data 00000000 00005080 00000001
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0080: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0084: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0088: f0000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - DAC 0:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0180: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0184: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0188: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0190: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - DAC 1:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01a0: 00000002              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01a4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01a8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01b0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - DAC 2:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01c0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01c4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01c8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         01d0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 0:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0200: 00000001              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0204: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0208: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0210: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 1:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0220: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0224: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0228: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0230: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 2:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0240: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0244: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0248: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0250: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 3:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0260: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0264: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0268: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0270: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 4:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0280: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0284: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0288: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0290: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 5:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02a0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02a4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02a8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02b0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 6:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02c0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02c4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02c8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02d0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - SOR 7:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02e0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02e4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02e8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         02f0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - PIOR 0:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0300: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0304: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0308: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0310: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - PIOR 1:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0320: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0324: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0328: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0330: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - PIOR 2:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0340: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0344: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0348: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0350: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - PIOR 3:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0360: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0364: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0368: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0370: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - HEAD 0:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0400: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0404: 00000019              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0408: 31ec6000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         040c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0410: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0414: 039e06c0              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0418: 0004001f              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         041c: 0016004f              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0420: 039a068f              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0424: 00000001              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0428: 0f000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         042c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0430: ffffff00              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0434: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0438: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0440: 83000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0444: 00000410              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0448: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         044c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0450: 05b8d800              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0454: 00200000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0458: 05b8d800              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         045c: f0000001              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0460: 0000c600 -> 00000600
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0468: 04000b40 -> 04000640
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         046c: 0000b404 -> 01001900
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0470: 0000cf00              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0474: ffff00fe -> ffff0000
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0480: 05000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0484: 00000470              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         048c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0490: 00000011              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0494: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0498: 00040000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04b0: 00000500 -> 00000000
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04b8: 03840640              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04bc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04c0: 03840640              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04c4: 03840640              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04c8: 03840640              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04d0: 00000311              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04d4: 00000100              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04e0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04e4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04e8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04ec: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04f0: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04f4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04f8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         04fc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0500: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0504: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0508: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         050c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0510: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0514: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0518: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         051c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         052c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0530: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         054c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0550: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0554: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0558: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         055c: 00000002              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - HEAD 1:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0700: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0704: 00000001              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0708: 33ec6000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         070c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0710: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0714: 042a0698              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0718: 0002008f              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         071c: 00280187              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0720: 04280687              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0724: 00000001              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0728: 0f000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         072c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0730: ffffff00              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0734: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0738: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0740: 83000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0744: 00000430              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0748: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         074c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0750: 080befc0              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0754: 00200000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0758: 080befc0              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         075c: f0000001              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0760: 0000c600              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0768: 04000b40              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         076c: 0000b404              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0770: 0000cf00              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0774: ffff00fe              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0780: 05000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0784: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         078c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0790: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0794: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0798: 00040000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07b0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07b8: 04000500              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07bc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07c0: 04000500              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07c4: 04000500              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07c8: 04000500              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07d0: 00000311              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07d4: 00000100              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07e0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07e4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07e8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07ec: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07f0: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07f4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07f8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         07fc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0800: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0804: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0808: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         080c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0810: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0814: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0818: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         081c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         082c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0830: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         084c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0850: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0854: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0858: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         085c: 00000002              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - HEAD 2:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a00: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a04: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a08: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a0c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a10: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a14: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a18: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a1c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a20: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a24: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a28: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a2c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a30: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a34: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a38: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a40: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a44: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a48: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a4c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a50: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a54: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a58: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a5c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a60: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a68: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a6c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a70: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a74: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a80: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a84: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a8c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a90: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a94: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0a98: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ab0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ab8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0abc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ac0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ac4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ac8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ad0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ad4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ae0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ae4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0ae8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0aec: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0af0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0af4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0af8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0afc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b00: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b04: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b08: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b0c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b10: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b14: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b18: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b1c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b2c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b30: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b4c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b50: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b54: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b58: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0b5c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Core - HEAD 3:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d00: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d04: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d08: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d0c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d10: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d14: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d18: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d1c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d20: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d24: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d28: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d2c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d30: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d34: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d38: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d40: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d44: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d48: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d4c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d50: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d54: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d58: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d5c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d60: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d68: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d6c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d70: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d74: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d80: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d84: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d8c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d90: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d94: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0d98: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0db0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0db8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dbc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dc0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dc4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dc8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dd0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dd4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0de0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0de4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0de8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dec: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0df0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0df4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0df8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0dfc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e00: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e04: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e08: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e0c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e10: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e14: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e18: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e1c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e2c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e30: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e4c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e50: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e54: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e58: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0e5c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: intr24 80000000
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: chid 2 mthd 0080 data 00000000 00005080 0000000d
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Base 2:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0080: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0084: 00000000 -> 00000010
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0088: 00000210              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         008c: 00000006 -> 00000007
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0090: 00000007 -> 00000008
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0094: 00000000 -> f0000000
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00a0: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00a4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00c0: 00000000 -> ffff0000
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00c4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00c8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00cc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00e0: 40000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00e4: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00e8: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00ec: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         00fc: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0100: fffe0000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0104: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0108: 18131813              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         010c: f0000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0110: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0114: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0118: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         011c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0130: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0134: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0138: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         013c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0140: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0144: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0148: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         014c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0150: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0154: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0158: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         015c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0160: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0164: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0168: 00010000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         016c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Base 2 - Image 0:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0400: 002db200 -> 00000600
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0404: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0408: 04000b40 -> 04000640
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         040c: 0000b404 -> 01001900
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0410: 0000cf00              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp: Base 2 - Image 1:
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0420: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0424: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0428: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         042c: 00000000              
Oct 09 16:48:36 winterfell kernel: nouveau 0000:01:00.0: disp:         0430: 0000e900              
Oct 09 16:49:01 winterfell kernel: nouveau: evo channel stalled

This only happens when multiple monitors are attached, and it happens when KDE Plasma 5.8 is starting, which means that X loads up fine but then during the "ksplash" screen before the desktop appears the GPU locksup and X freezes.