I've been having an intermittent problem for some months with my X11 screen
blanking (i.e. going totally black -- however, the mouse still displays and
changes shape depending on what it's hovering over!). Switching to
Ctrl+Alt+F1 and back fixes it, though once in a while causes X11 to crash.
Sometimes this doesn't happen for a few days, at which point I think I've
fixed it. Sometimes it happens several times in 10 minutes. There is no
obvious trigger for it: I might have a web browser loaded or not, or ffmpeg
running or not etc etc.

I now think I might have a clue from Xorg.0.log. The full Xorg.0.log is
attached but I suspect this might be the crucial part:

  [ 86235.372] (II) modeset(0): Modeline "1280x1024"x0.0  108.00  1280 1328 
1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
  [ 86235.372] (II) modeset(0): Modeline "1600x1200"x0.0  162.00  1600 1664 
1856 2160  1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
  [ 88657.765] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.765] (EE) modeset(0): present flip failed
  [ 88657.766] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.799] failed to add fb -2
  [ 88657.799] (EE) modeset(0): failed to set mode: No such file or directory
  [ 88657.835] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.835] (EE) modeset(0): present flip failed
  [ 88657.894] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.894] (EE) modeset(0): present flip failed
  [ 88657.915] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.915] (EE) modeset(0): present flip failed
  [ 88657.932] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.932] (EE) modeset(0): present flip failed
  [ 88657.965] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.965] (EE) modeset(0): present flip failed
  [ 88657.994] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88657.994] (EE) modeset(0): present flip failed
  [ 88658.032] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88658.032] (EE) modeset(0): present flip failed
  [ 88658.049] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88658.049] (EE) modeset(0): present flip failed
  [ 88658.083] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88658.083] (EE) modeset(0): present flip failed
  [ 88658.131] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88658.131] (EE) modeset(0): present flip failed
  [ 88658.149] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88658.149] (EE) modeset(0): present flip failed
  [ 88658.189] (WW) modeset(0): flip queue failed: Device busy
  [ 88658.189] (WW) modeset(0): Page flip failed: Device busy

These last 3 lines repeat until, I think, I've done a terminal switch at
which point we get:

  [ 88662.674] (WW) modeset(0): flip queue failed: Device busy
  [ 88662.674] (WW) modeset(0): Page flip failed: Device busy
  [ 88662.674] (EE) modeset(0): present flip failed
  [ 88662.696] (II) AIGLX: Suspending AIGLX clients for VT switch
  [ 88664.420] (II) AIGLX: Resuming AIGLX clients after VT switch
  [ 88664.526] (II) modeset(0): EDID vendor "DEL", prod id 41148
  [ 88664.526] (II) modeset(0): Using hsync ranges from config file
  [ 88664.526] (II) modeset(0): Using vrefresh ranges from config file
  [ 88664.526] (II) modeset(0): Printing DDC gathered Modelines:
  [ 88664.526] (II) modeset(0): Modeline "1920x1200"x0.0  154.00  1920 1968 
2000 2080  1200 1203 1209 1235 +hsync +vsync (74.0 kHz eP)
  [ 88664.526] (II) modeset(0): Modeline "1920x1080"x0.0  148.50  1920 2008 
2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1920x1080i"x0.0   74.25  1920 2008 
2052 2200  1080 1084 1094 1125 interlace +hsync +vsync (33.8 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1280x720"x0.0   74.25  1280 1390 1430 
1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "720x480"x0.0   27.00  720 736 798 858 
 480 489 495 525 -hsync -vsync (31.5 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1440x480i"x0.0   27.00  1440 1478 
1602 1716  480 488 494 525 interlace -hsync -vsync (15.7 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1440x576i"x0.0   27.00  1440 1464 
1590 1728  576 580 586 625 interlace -hsync -vsync (15.6 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "640x480"x0.0   25.18  640 656 752 800 
 480 490 492 525 -hsync -vsync (31.5 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1920x1080i"x0.0   74.25  1920 2448 
2492 2640  1080 1084 1094 1125 interlace +hsync +vsync (28.1 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1920x1080"x0.0  148.50  1920 2448 
2492 2640  1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "720x576"x0.0   27.00  720 732 796 864 
 576 581 586 625 -hsync -vsync (31.2 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1280x720"x0.0   74.25  1280 1720 1760 
1980  720 725 730 750 +hsync +vsync (37.5 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1920x1080"x0.0   74.25  1920 2558 
2602 2750  1080 1084 1089 1125 +hsync +vsync (27.0 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1920x1080"x0.0   74.25  1920 2448 
2492 2640  1080 1084 1089 1125 +hsync +vsync (28.1 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1920x1080"x0.0   74.25  1920 2008 
2052 2200  1080 1084 1089 1125 +hsync +vsync (33.8 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "800x600"x0.0   40.00  800 840 968 
1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "640x480"x0.0   31.50  640 656 720 840 
 480 481 484 500 -hsync -vsync (37.5 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "720x400"x0.0   28.32  720 738 846 900 
 400 412 414 449 -hsync +vsync (31.5 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1280x1024"x0.0  135.00  1280 1296 
1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 
1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 
1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "800x600"x0.0   49.50  800 816 896 
1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1152x864"x0.0  108.00  1152 1216 1344 
1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1280x1024"x0.0  108.00  1280 1328 
1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
  [ 88664.526] (II) modeset(0): Modeline "1600x1200"x0.0  162.00  1600 1664 
1856 2160  1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
  [ 88669.195] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88669.195] (EE) modeset(0): present flip failed
  [ 88669.195] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88669.224] failed to add fb -2
  [ 88669.224] (EE) modeset(0): failed to set mode: No such file or directory
  [ 88669.254] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88669.254] (EE) modeset(0): present flip failed
  [ 88669.278] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88669.278] (EE) modeset(0): present flip failed
  [ 88669.332] _XSERVTransSocketUNIXAccept: accept() failed
  [ 88669.332] _XSERVTransSocketUNIXAccept: accept() failed
  [ 88669.332] _XSERVTransSocketUNIXAccept: accept() failed

and then the "accept failed" carries on for ~300000 lines, punctuated
occasionally by:

  [ 88669.342] (WW) modeset(0): Page flip failed: No such file or directory
  [ 88669.342] (EE) modeset(0): present flip failed

until eventually I presumably do another VT switch%:

  [ 88677.284] _XSERVTransSocketUNIXAccept: accept() failed
  [ 88719.999] (II) AIGLX: Resuming AIGLX clients after VT switch
  [ 88720.104] (II) modeset(0): EDID vendor "DEL", prod id 41148
  [ 88720.104] (II) modeset(0): Using hsync ranges from config file

This has been happening on -current amd64 for perhaps 3-4 months. I don't
have an xorg.conf file, so I'm using whatever the defaults are.

dmesg:

  OpenBSD 6.8-current (GENERIC.MP) #185: Thu Nov 19 11:33:43 MST 2020
      dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
  real mem = 17028239360 (16239MB)
  avail mem = 16496873472 (15732MB)
  random: good seed from bootblocks
  mpath0 at root
  scsibus0 at mpath0: 256 targets
  mainbus0 at root
  bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xc3200000 (89 entries)
  bios0: vendor American Megatrends Inc. version "3805" date 05/16/2018
  bios0: ASUSTeK COMPUTER INC. Z170M-PLUS
  acpi0 at bios0: ACPI 6.1
  acpi0: sleep states S0 S3 S4 S5
  acpi0: tables DSDT FACP APIC FPDT BGRT MCFG SSDT FIDT SSDT SSDT HPET SSDT 
SSDT UEFI SSDT LPIT WSMT SSDT SSDT DBGP DBG2
  acpi0: wakeup devices PEG0(S4) PEGP(S4) PEG1(S4) PEGP(S4) PEG2(S4) PEGP(S4) 
SIO1(S3) UAR1(S4) RP09(S4) PXSX(S4) RP10(S4) PXSX(S4) RP11(S4) PXSX(S4) 
RP12(S4) PXSX(S4) [...]
  acpitimer0 at acpi0: 3579545 Hz, 24 bits
  acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
  cpu0 at mainbus0: apid 0 (boot processor)
  cpu0: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz, 4121.53 MHz, 06-5e-03
  cpu0: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
  cpu0: 256KB 64b/line 8-way L2 cache
  cpu0: smt 0, core 0, package 0
  mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
  cpu0: apic clock running at 24MHz
  cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1, IBE
  cpu1 at mainbus0: apid 2 (application processor)
  cpu1: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz, 4120.01 MHz, 06-5e-03
  cpu1: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
  cpu1: 256KB 64b/line 8-way L2 cache
  cpu1: smt 0, core 1, package 0
  cpu2 at mainbus0: apid 4 (application processor)
  cpu2: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz, 4120.01 MHz, 06-5e-03
  cpu2: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
  cpu2: 256KB 64b/line 8-way L2 cache
  cpu2: smt 0, core 2, package 0
  cpu3 at mainbus0: apid 6 (application processor)
  cpu3: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz, 4120.01 MHz, 06-5e-03
  cpu3: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
  cpu3: 256KB 64b/line 8-way L2 cache
  cpu3: smt 0, core 3, package 0
  ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins
  acpimcfg0 at acpi0
  acpimcfg0: addr 0xf8000000, bus 0-63
  acpihpet0 at acpi0: 23999999 Hz
  acpiprt0 at acpi0: bus 0 (PCI0)
  acpiprt1 at acpi0: bus -1 (PEG0)
  acpiprt2 at acpi0: bus -1 (PEG1)
  acpiprt3 at acpi0: bus -1 (PEG2)
  acpiprt4 at acpi0: bus 4 (RP09)
  acpiprt5 at acpi0: bus -1 (RP10)
  acpiprt6 at acpi0: bus -1 (RP11)
  acpiprt7 at acpi0: bus -1 (RP12)
  acpiprt8 at acpi0: bus -1 (RP13)
  acpiprt9 at acpi0: bus 3 (RP01)
  acpiprt10 at acpi0: bus -1 (RP02)
  acpiprt11 at acpi0: bus -1 (RP03)
  acpiprt12 at acpi0: bus -1 (RP04)
  acpiprt13 at acpi0: bus -1 (RP05)
  acpiprt14 at acpi0: bus -1 (RP06)
  acpiprt15 at acpi0: bus -1 (RP07)
  acpiprt16 at acpi0: bus -1 (RP08)
  acpiprt17 at acpi0: bus 1 (RP17)
  acpiprt18 at acpi0: bus -1 (RP18)
  acpiprt19 at acpi0: bus -1 (RP19)
  acpiprt20 at acpi0: bus 2 (RP20)
  acpiprt21 at acpi0: bus -1 (RP21)
  acpiprt22 at acpi0: bus -1 (RP22)
  acpiprt23 at acpi0: bus -1 (RP23)
  acpiprt24 at acpi0: bus -1 (RP24)
  acpiprt25 at acpi0: bus -1 (RP14)
  acpiprt26 at acpi0: bus -1 (RP15)
  acpiprt27 at acpi0: bus -1 (RP16)
  acpiec0 at acpi0: not present
  acpipci0 at acpi0 PCI0: 0x00000004 0x00000011 0x00000001
  acpicmos0 at acpi0
  "PNP0C14" at acpi0 not configured
  acpibtn0 at acpi0: SLPB
  "INT33A1" at acpi0 not configured
  acpibtn1 at acpi0: PWRB
  "PNP0C0B" at acpi0 not configured
  "PNP0C0B" at acpi0 not configured
  "PNP0C0B" at acpi0 not configured
  "PNP0C0B" at acpi0 not configured
  "PNP0C0B" at acpi0 not configured
  "PNP0C14" at acpi0 not configured
  acpicpu0 at acpi0: C1(@1 halt!), PSS
  acpicpu1 at acpi0: C1(@1 halt!), PSS
  acpicpu2 at acpi0: C1(@1 halt!), PSS
  acpicpu3 at acpi0: C1(@1 halt!), PSS
  acpipwrres0 at acpi0: PG00, resource for PEG0
  acpipwrres1 at acpi0: PG01, resource for PEG1
  acpipwrres2 at acpi0: PG02, resource for PEG2
  acpipwrres3 at acpi0: WRST
  acpipwrres4 at acpi0: WRST
  acpipwrres5 at acpi0: WRST
  acpipwrres6 at acpi0: WRST
  acpipwrres7 at acpi0: WRST
  acpipwrres8 at acpi0: WRST
  acpipwrres9 at acpi0: WRST
  acpipwrres10 at acpi0: WRST
  acpipwrres11 at acpi0: WRST
  acpipwrres12 at acpi0: WRST
  acpipwrres13 at acpi0: WRST
  acpipwrres14 at acpi0: WRST
  acpipwrres15 at acpi0: WRST
  acpipwrres16 at acpi0: WRST
  acpipwrres17 at acpi0: WRST
  acpipwrres18 at acpi0: WRST
  acpipwrres19 at acpi0: WRST
  acpipwrres20 at acpi0: WRST
  acpipwrres21 at acpi0: WRST
  acpipwrres22 at acpi0: WRST
  acpipwrres23 at acpi0: FN00, resource for FAN0
  acpipwrres24 at acpi0: FN01, resource for FAN1
  acpipwrres25 at acpi0: FN02, resource for FAN2
  acpipwrres26 at acpi0: FN03, resource for FAN3
  acpipwrres27 at acpi0: FN04, resource for FAN4
  acpitz0 at acpi0: critical temperature is 119 degC
  acpitz1 at acpi0: critical temperature is 119 degC
  acpivideo0 at acpi0: GFX0
  cpu0: using VERW MDS workaround (except on vmm entry)
  cpu0: Enhanced SpeedStep 4121 MHz: speeds: 4001, 4000, 3800, 3500, 3300, 
3100, 2900, 2600, 2400, 2200, 1900, 1700, 1500, 1300, 1000, 800 MHz
  pci0 at mainbus0 bus 0
  pchb0 at pci0 dev 0 function 0 "Intel Core 6G Host" rev 0x07
  inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 530" rev 0x06
  drm0 at inteldrm0
  inteldrm0: msi, SKYLAKE, gen 9
  xhci0 at pci0 dev 20 function 0 "Intel 100 Series xHCI" rev 0x31: msi, xHCI 
1.0
  usb0 at xhci0: USB revision 3.0
  uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 
addr 1
  "Intel 100 Series MEI" rev 0x31 at pci0 dev 22 function 0 not configured
  ahci0 at pci0 dev 23 function 0 "Intel 100 Series AHCI" rev 0x31: msi, AHCI 
1.3.1
  ahci0: PHY offline on port 0
  ahci0: PHY offline on port 1
  ahci0: PHY offline on port 2
  ahci0: port 3: 1.5Gb/s
  ahci0: PHY offline on port 4
  ahci0: PHY offline on port 5
  scsibus1 at ahci0: 32 targets
  cd0 at scsibus1 targ 3 lun 0: <ATAPI, iHAS124 F, CL98> removable
  ppb0 at pci0 dev 27 function 0 "Intel 100 Series PCIE" rev 0xf1
  pci1 at ppb0 bus 1
  ppb1 at pci0 dev 27 function 3 "Intel 100 Series PCIE" rev 0xf1: msi
  pci2 at ppb1 bus 2
  iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 7260" rev 0x73, msi
  ppb2 at pci0 dev 28 function 0 "Intel 100 Series PCIE" rev 0xf1
  pci3 at ppb2 bus 3
  ppb3 at pci0 dev 29 function 0 "Intel 100 Series PCIE" rev 0xf1: msi
  pci4 at ppb3 bus 4
  nvme0 at pci4 dev 0 function 0 "ADATA Technology SX8200 Pro" rev 0x03: msix, 
NVMe 1.3
  nvme0: ADATA SX8200PNP, firmware 32B2T6TA, serial 2K31291244PH
  scsibus2 at nvme0: 2 targets, initiator 0
  sd0 at scsibus2 targ 1 lun 0: <NVMe, ADATA SX8200PNP, 32B2>
  sd0: 976762MB, 512 bytes/sector, 2000409264 sectors
  pcib0 at pci0 dev 31 function 0 "Intel Z170 LPC" rev 0x31
  "Intel 100 Series PMC" rev 0x31 at pci0 dev 31 function 2 not configured
  azalia0 at pci0 dev 31 function 3 "Intel 100 Series HD Audio" rev 0x31: msi
  azalia0: codecs: Realtek ALC887, Intel/0x2809, using Realtek ALC887
  audio0 at azalia0
  ichiic0 at pci0 dev 31 function 4 "Intel 100 Series SMBus" rev 0x31: apic 2 
int 16
  iic0 at ichiic0
  iic0: addr 0x19 00=00 01=00 02=00 03=00 04=00 05=c1 06=1b 07=22 08=00 09=00 
0a=00 0b=00 0c=00 0d=00 0e=00 0f=00 words 00=007f 01=0000 02=0000 03=0000 
04=0000 05=c136 06=1b09 07=2220
  iic0: addr 0x1b 00=00 01=00 02=00 03=00 04=00 05=c1 06=1b 07=22 08=00 09=00 
0a=00 0b=00 0c=00 0d=00 0e=00 0f=00 words 00=007f 01=0000 02=0000 03=0000 
04=0000 05=c132 06=1b09 07=2230
  iic0: addr 0x20 01=2a 02=2a 03=13 04=11 05=13 06=e0 07=0a 08=0a 09=0a 0a=0a 
0b=22 0c=22 0d=dd 0e=dd 0f=44 10=44 13=73 15=ab 16=2c 17=d5 19=8a 1a=50 1b=68 
1c=22 1d=3f 1e=3c 20=70 21=70 22=45 23=44 29=24 2a=3e 2b=fc 2c=fc 2d=22 2e=dd 
2f=44 31=73 33=ab 37=8a 38=50 39=3f 3a=3c 3b=45 3c=44 43=37 44=35 48=03 92=0b 
b2=29 words 00=00ff 01=2aff 02=2aff 03=13ff 04=11ff 05=13ff 06=e0ff 07=0aff
  spdmem0 at iic0 addr 0x51: 8GB DDR4 SDRAM PC4-21300 with thermal sensor
  spdmem1 at iic0 addr 0x53: 8GB DDR4 SDRAM PC4-21300 with thermal sensor
  em0 at pci0 dev 31 function 6 "Intel I219-V" rev 0x31: msi, address XXX
  isa0 at pcib0
  isadma0 at isa0
  com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
  pckbc0 at isa0 port 0x60/5 irq 1 irq 12
  pckbd0 at pckbc0 (kbd slot)
  wskbd0 at pckbd0: console keyboard
  pcppi0 at isa0 port 0x61
  spkr0 at pcppi0
  vmm0 at mainbus0: VMX/EPT
  efifb at mainbus0 not configured
  uhub1 at uhub0 port 2 configuration 1 interface 0 "VIA Labs, Inc. USB2.0 Hub" 
rev 2.10/7.04 addr 2
  uhidev0 at uhub1 port 1 configuration 1 interface 0 "MALTRON USB Multimedia 
Keyboard" rev 1.10/1.22 addr 3
  uhidev0: iclass 3/1
  ukbd0 at uhidev0: 8 variable keys, 6 key codes, country code 13
  wskbd1 at ukbd0 mux 1
  uhidev1 at uhub1 port 1 configuration 1 interface 1 "MALTRON USB Multimedia 
Keyboard" rev 1.10/1.22 addr 3
  uhidev1: iclass 3/0, 3 report ids
  uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0
  uhid1 at uhidev1 reportid 3: input=2, output=0, feature=0
  uaudio0 at uhub1 port 2 configuration 1 interface 1 "Solid State Logic SSL 
2+" rev 2.00/0.61 addr 4
  uaudio0: class v2, high-speed, sync, channels: 4 play, 2 rec, 0 ctls
  audio1 at uaudio0
  umidi0 at uhub1 port 2 configuration 1 interface 4 "Solid State Logic SSL 2+" 
rev 2.00/0.61 addr 4
  umidi0: (genuine USB-MIDI)
  umidi0: out=1, in=1
  midi0 at umidi0: <USB MIDI I/F>
  ugen0 at uhub1 port 2 configuration 1 "Solid State Logic SSL 2+" rev 
2.00/0.61 addr 4
  uvideo0 at uhub1 port 3 configuration 1 interface 0 "Logitech HD Pro Webcam 
C920" rev 2.00/0.19 addr 5
  video0 at uvideo0
  uaudio1 at uhub1 port 3 configuration 1 interface 3 "Logitech HD Pro Webcam 
C920" rev 2.00/0.19 addr 5
  uaudio1: class v1, high-speed, sync, channels: 0 play, 2 rec, 2 ctls
  audio2 at uaudio1
  uhidev2 at uhub0 port 14 configuration 1 interface 0 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev2: iclass 3/1
  ukbd1 at uhidev2: 8 variable keys, 6 key codes
  wskbd2 at ukbd1 mux 1
  uhidev3 at uhub0 port 14 configuration 1 interface 1 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev3: iclass 3/1, 8 report ids
  ums0 at uhidev3 reportid 2: 16 buttons, Z and W dir
  wsmouse0 at ums0 mux 0
  uhid2 at uhidev3 reportid 3: input=4, output=0, feature=0
  uhid3 at uhidev3 reportid 4: input=1, output=0, feature=0
  uhid4 at uhidev3 reportid 8: input=1, output=0, feature=0
  uhidev4 at uhub0 port 14 configuration 1 interface 2 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev4: iclass 3/0, 33 report ids
  uhid5 at uhidev4 reportid 16: input=6, output=6, feature=0
  uhid6 at uhidev4 reportid 17: input=19, output=19, feature=0
  uhid7 at uhidev4 reportid 32: input=14, output=14, feature=0
  uhid8 at uhidev4 reportid 33: input=31, output=31, feature=0
  vscsi0 at root
  scsibus3 at vscsi0: 256 targets
  softraid0 at root
  scsibus4 at softraid0: 256 targets
  sd1 at scsibus4 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006>
  sd1: 976761MB, 512 bytes/sector, 2000407649 sectors
  root on sd1a (9edc4b979e6dd93d.a) swap on sd1b dump on sd1b
  drm:pid0:skl_ddi_pll_enable *ERROR* [drm] *ERROR* DPLL 1 not locked
  inteldrm0: 1920x1200, 32bpp
  wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
  wskbd1: connecting to wsdisplay0
  wskbd2: connecting to wsdisplay0
  wsdisplay0: screen 1-5 added (std, vt100 emulation)
  iwm0: hw rev 0x140, fw ver 17.3216344376.0, address XXX
  uaudio0: play xfer, err = 6
  umass0 at uhub1 port 4 configuration 1 interface 1 "HMD Global Nokia 7.1" rev 
2.00/4.04 addr 7
  umass0: using SCSI over Bulk-Only
  scsibus5 at umass0: 2 targets, initiator 0
  cd1 at scsibus5 targ 1 lun 0: <Linux, File-CD Gadget, 0404> removable 
serial.2e04c025AP18A1005020
  ugen1 at uhub1 port 4 configuration 1 "HMD Global Nokia 7.1" rev 2.00/4.04 
addr 7
  cd1 detached
  scsibus5 detached
  umass0 detached
  ugen1 detached
  wskbd1: disconnecting from wsdisplay0
  wskbd1 detached
  ukbd0 detached
  uhidev0 detached
  uhid0 detached
  uhid1 detached
  uhidev1 detached
  audio1 detached
  uaudio0 detached
  midi0 detached
  umidi0 detached
  ugen0 detached
  video0 detached
  uvideo0 detached
  audio2 detached
  uaudio1 detached
  uhub1 detached
  wskbd2: disconnecting from wsdisplay0
  wskbd2 detached
  ukbd1 detached
  uhidev2 detached
  wsmouse0 detached
  ums0 detached
  uhid2 detached
  uhid3 detached
  uhid4 detached
  uhidev3 detached
  uhid5 detached
  uhid6 detached
  uhid7 detached
  uhid8 detached
  uhidev4 detached
  uhub0 detached
  uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 
addr 1
  uhub1 at uhub0 port 2 configuration 1 interface 0 "VIA Labs, Inc. USB2.0 Hub" 
rev 2.10/7.04 addr 2
  uhidev0 at uhub1 port 1 configuration 1 interface 0 "MALTRON USB Multimedia 
Keyboard" rev 1.10/1.22 addr 3
  uhidev0: iclass 3/1
  ukbd0 at uhidev0: 8 variable keys, 6 key codes, country code 13
  wskbd1 at ukbd0 mux 1
  wskbd1: connecting to wsdisplay0
  uhidev1 at uhub1 port 1 configuration 1 interface 1 "MALTRON USB Multimedia 
Keyboard" rev 1.10/1.22 addr 3
  uhidev1: iclass 3/0, 3 report ids
  uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0
  uhid1 at uhidev1 reportid 3: input=2, output=0, feature=0
  uaudio0 at uhub1 port 2 configuration 1 interface 1 "Solid State Logic SSL 
2+" rev 2.00/0.61 addr 4
  uaudio0: class v2, high-speed, sync, channels: 4 play, 2 rec, 0 ctls
  audio1 at uaudio0
  umidi0 at uhub1 port 2 configuration 1 interface 4 "Solid State Logic SSL 2+" 
rev 2.00/0.61 addr 4
  umidi0: (genuine USB-MIDI)
  umidi0: out=1, in=1
  midi0 at umidi0: <USB MIDI I/F>
  ugen0 at uhub1 port 2 configuration 1 "Solid State Logic SSL 2+" rev 
2.00/0.61 addr 4
  uvideo0 at uhub1 port 3 configuration 1 interface 0 "Logitech HD Pro Webcam 
C920" rev 2.00/0.19 addr 5
  video0 at uvideo0
  uaudio1 at uhub1 port 3 configuration 1 interface 3 "Logitech HD Pro Webcam 
C920" rev 2.00/0.19 addr 5
  uaudio1: class v1, high-speed, sync, channels: 0 play, 2 rec, 2 ctls
  audio2 at uaudio1
  uhidev2 at uhub0 port 14 configuration 1 interface 0 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev2: iclass 3/1
  ukbd1 at uhidev2: 8 variable keys, 6 key codes
  wskbd2 at ukbd1 mux 1
  wskbd2: connecting to wsdisplay0
  uhidev3 at uhub0 port 14 configuration 1 interface 1 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev3: iclass 3/1, 8 report ids
  ums0 at uhidev3 reportid 2: 16 buttons, Z and W dir
  wsmouse0 at ums0 mux 0
  uhid2 at uhidev3 reportid 3: input=4, output=0, feature=0
  uhid3 at uhidev3 reportid 4: input=1, output=0, feature=0
  uhid4 at uhidev3 reportid 8: input=1, output=0, feature=0
  uhidev4 at uhub0 port 14 configuration 1 interface 2 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev4: iclass 3/0, 33 report ids
  uhid5 at uhidev4 reportid 16: input=6, output=6, feature=0
  uhid6 at uhidev4 reportid 17: input=19, output=19, feature=0
  uhid7 at uhidev4 reportid 32: input=14, output=14, feature=0
  uhid8 at uhidev4 reportid 33: input=31, output=31, feature=0
  wskbd1: disconnecting from wsdisplay0
  wskbd1 detached
  ukbd0 detached
  uhidev0 detached
  uhid0 detached
  uhid1 detached
  uhidev1 detached
  audio1 detached
  uaudio0 detached
  midi0 detached
  umidi0 detached
  ugen0 detached
  video0 detached
  uvideo0 detached
  audio2 detached
  uaudio1 detached
  uhub1 detached
  wskbd2: disconnecting from wsdisplay0
  wskbd2 detached
  ukbd1 detached
  uhidev2 detached
  wsmouse0 detached
  ums0 detached
  uhid2 detached
  uhid3 detached
  uhid4 detached
  uhidev3 detached
  uhid5 detached
  uhid6 detached
  uhid7 detached
  uhid8 detached
  uhidev4 detached
  uhub0 detached
  uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 
addr 1
  uhub1 at uhub0 port 2 configuration 1 interface 0 "VIA Labs, Inc. USB2.0 Hub" 
rev 2.10/7.04 addr 2
  uhidev0 at uhub1 port 1 configuration 1 interface 0 "MALTRON USB Multimedia 
Keyboard" rev 1.10/1.22 addr 3
  uhidev0: iclass 3/1
  ukbd0 at uhidev0: 8 variable keys, 6 key codes, country code 13
  wskbd1 at ukbd0 mux 1
  wskbd1: connecting to wsdisplay0
  uhidev1 at uhub1 port 1 configuration 1 interface 1 "MALTRON USB Multimedia 
Keyboard" rev 1.10/1.22 addr 3
  uhidev1: iclass 3/0, 3 report ids
  uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0
  uhid1 at uhidev1 reportid 3: input=2, output=0, feature=0
  uaudio0 at uhub1 port 2 configuration 1 interface 1 "Solid State Logic SSL 
2+" rev 2.00/0.61 addr 4
  uaudio0: class v2, high-speed, sync, channels: 4 play, 2 rec, 0 ctls
  audio1 at uaudio0
  umidi0 at uhub1 port 2 configuration 1 interface 4 "Solid State Logic SSL 2+" 
rev 2.00/0.61 addr 4
  umidi0: (genuine USB-MIDI)
  umidi0: out=1, in=1
  midi0 at umidi0: <USB MIDI I/F>
  ugen0 at uhub1 port 2 configuration 1 "Solid State Logic SSL 2+" rev 
2.00/0.61 addr 4
  uvideo0 at uhub1 port 3 configuration 1 interface 0 "Logitech HD Pro Webcam 
C920" rev 2.00/0.19 addr 5
  video0 at uvideo0
  uaudio1 at uhub1 port 3 configuration 1 interface 3 "Logitech HD Pro Webcam 
C920" rev 2.00/0.19 addr 5
  uaudio1: class v1, high-speed, sync, channels: 0 play, 2 rec, 2 ctls
  audio2 at uaudio1
  uhidev2 at uhub0 port 14 configuration 1 interface 0 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev2: iclass 3/1
  ukbd1 at uhidev2: 8 variable keys, 6 key codes
  wskbd2 at ukbd1 mux 1
  wskbd2: connecting to wsdisplay0
  uhidev3 at uhub0 port 14 configuration 1 interface 1 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev3: iclass 3/1, 8 report ids
  ums0 at uhidev3 reportid 2: 16 buttons, Z and W dir
  wsmouse0 at ums0 mux 0
  uhid2 at uhidev3 reportid 3: input=4, output=0, feature=0
  uhid3 at uhidev3 reportid 4: input=1, output=0, feature=0
  uhid4 at uhidev3 reportid 8: input=1, output=0, feature=0
  uhidev4 at uhub0 port 14 configuration 1 interface 2 "Logitech USB Receiver" 
rev 2.00/12.03 addr 6
  uhidev4: iclass 3/0, 33 report ids
  uhid5 at uhidev4 reportid 16: input=6, output=6, feature=0
  uhid6 at uhidev4 reportid 17: input=19, output=19, feature=0
  uhid7 at uhidev4 reportid 32: input=14, output=14, feature=0
  uhid8 at uhidev4 reportid 33: input=31, output=31, feature=0


Laurie

Attachment: Xorg.0.log.bz2
Description: Binary data

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