I have a Lenovo Thinkpad T530.  Everything (including the builtin
touchpad) was fine under 6.2/amd64, but under 6.3/amd64 there is a
severe problem with the builtin touchpad when running X (autoconfigured
with no xorg.conf; all other aspects of X operation are fine).

The problem is this: when I first start X the touchpad operates normally.
But a minute or so of use the X cursor starts jumping to the left and/or
top side of the screen each time I start a new finger-movement.

That is, a normal sequence of touchpad operation is
1. touch finger to touchpad
2. drag finger to move X cursor to desired location
3. remove finger from touchpad
but once this problem starts, step 2 causes the X cursor to jump to the
left side of the screen (if the finger-drag is in a horizontal direction),
the top side of the screen (if the finger-drag is in a vertical direction),
or the top-left corner of the screen (if the finger-drag is in a diagonal
direction).

I see the same symptoms if ...
* ... I boot GENERIC instead of usual GENERIC.MP
* ... I comment out the line 'xset m 1/4' (which is the only 'xset m' line)
  from my $HOME/.xinitrc.
* ... I change from my usual window manager (twm, started from $HOME/.xinitrc),
  to the OpenBSD default fvwm (started if there is no $HOME/.xinitrc).
* ... I plug in a USB (optical) mouse, but continue to use the builtin
  touchpad,
* ... I plug in a USB (optical) mouse, and use that as a pointer device
  instead of the builtin touchpad.  In this case mouse movements trigger
  the X-cursor-jumping behavior: the X cursor jumps to the left side of
  the screen (if the mouse movement is in a horizontal direction), the top
  side of the screen (if the mouse movement is in a vertical direction),
  or the top-left corner of the screen (if the mouse movement is in a
  diagonal direction).

Once this problem starts, the only "cure" I have found is to kill the
X server (either 'pkill X' or Ctrl-Shift-Backspace -- the window-manager
menu is inaccessable due to the X cursor jumping) and start a new X session.
This gets me a minute or so of normal operation before the problem reoccurs.

I am not running xenodm -- I login on the console and start (or restart)
X via 'startx'.

Below I give my dmesg (6.3/amd64), a dmesg from 6.2/amd64 on this same
machine for comparison, and /var/log/Xorg.0.log (6.3/amd64).

Have other Thinkpad users encountered this behavior?  Is there a known
workaround?  Is there additional information I could supply to help
diagnose the problem?  (I could run with a debugging kernel or X server
for a while if that would help.)

Thanks, ciao,
-- "Jonathan Thornburg [remove -animal to reply]" 
<jth...@astro.indiana-zebra.edu>
   currently visiting Max-Plack-Institute fuer Gravitationsphysik
                      (Albert-Einstein-Institut), Potsdam-Golm, Germany

--- begin 6.3/amd64 /var/run/dmesg.boot ---
OpenBSD 6.3 (GENERIC.MP) #107: Sat Mar 24 14:21:59 MDT 2018
    dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 16845565952 (16065MB)
avail mem = 16327950336 (15571MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdae9c000 (69 entries)
bios0: vendor LENOVO version "G4ETA7WW (2.67 )" date 08/24/2016
bios0: LENOVO 24292A9
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SLIC TCPA SSDT SSDT SSDT HPET APIC MCFG ECDT FPDT ASF! 
UEFI UEFI POAT SSDT SSDT UEFI DBG2
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP3(S4) XHCI(S3) EHC1(S3) 
EHC2(S3) HDEF(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz, 2893.80 MHz
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu0: 256KB 64b/line 8-way L2 cache
acpihpet0: recalibrated TSC frequency 2893437769 Hz
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz, 2893.43 MHz
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpiec0 at acpi0
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG_)
acpiprt2 at acpi0: bus 2 (EXP1)
acpiprt3 at acpi0: bus 3 (EXP2)
acpiprt4 at acpi0: bus 4 (EXP3)
acpicpu0 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1, EHC2
acpitz0 at acpi0: critical temperature is 103 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
"LEN0071" at acpi0 not configured
"LEN0015" at acpi0 not configured
acpibat0 at acpi0: BAT0 model "45N1001" serial  1364 type LION oem "SANYO"
acpiac0 at acpi0: AC unit online
"LEN0078" at acpi0 not configured
acpithinkpad0 at acpi0
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpivideo0 at acpi0: VID_
acpivout at acpivideo0 not configured
acpivideo1 at acpi0: VID_
cpu0: Enhanced SpeedStep 2893 MHz: speeds: 2901, 2900, 2800, 2700, 2500, 2400, 
2300, 2200, 2000, 1900, 1800, 1700, 1600, 1400, 1300, 1200 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 3G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 4000" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1920x1080, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
xhci0 at pci0 dev 20 function 0 "Intel 7 Series xHCI" rev 0x04: msi
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 7 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address 
3c:97:0e:84:e7:c5
ehci0 at pci0 dev 26 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 16
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 
addr 1
azalia0 at pci0 dev 27 function 0 "Intel 7 Series HD Audio" rev 0x04: msi
azalia0: codecs: Realtek ALC269
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4: msi
pci1 at ppb0 bus 2
sdhc0 at pci1 dev 0 function 0 "Ricoh 5U823 SD/MMC" rev 0x05: apic 2 int 16
sdhc0: SDHC 3.0, 50 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
"Ricoh 5U832 Firewire" rev 0x04 at pci1 dev 0 function 3 not configured
ppb1 at pci0 dev 28 function 1 "Intel 7 Series PCIE" rev 0xc4: msi
pci2 at ppb1 bus 3
iwn0 at pci2 dev 0 function 0 "Intel Centrino Advanced-N 6205" rev 0x34: msi, 
MIMO 2T2R, MoW, address 84:3a:4b:56:7a:dc
ppb2 at pci0 dev 28 function 2 "Intel 7 Series PCIE" rev 0xc4: msi
pci3 at ppb2 bus 4
ehci1 at pci0 dev 29 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 23
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 
addr 1
pcib0 at pci0 dev 31 function 0 "Intel QM77 LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 7 Series AHCI" rev 0x04: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 1: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, WDC WD10JFCX-68N, 82.0> SCSI3 0/direct 
fixed naa.50014ee60759ebae
sd0: 953869MB, 512 bytes/sector, 1953525168 sectors
cd0 at scsibus1 targ 1 lun 0: <HL-DT-ST, DVDRAM GT50N, LT20> ATAPI 5/cdrom 
removable
ichiic0 at pci0 dev 31 function 3 "Intel 7 Series SMBus" rev 0x04: apic 2 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x51: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
wsmouse1 at pms0 mux 0
pms0: Synaptics touchpad, firmware 7.2, 0x1c0b1 0xb40000
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
error: [drm:pid0:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo 
underrun on pch transcoder A
error: [drm:pid0:intel_pch_fifo_underrun_irq_handler] *ERROR* PCH transcoder A 
FIFO underrun
uhub3 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 
2.00/0.00 addr 2
ugen0 at uhub3 port 1 "Lenovo Integrated Smart Card Reader" rev 2.00/1.00 addr 3
ugen1 at uhub3 port 3 "Auth Biometric Coprocessor" rev 1.10/0.01 addr 4
uhub4 at uhub2 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 
2.00/0.00 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
sd1: 33282MB, 512 bytes/sector, 68163120 sectors
root on sd1a (d28f88291c1f5b18.a) swap on sd1b dump on sd1b
--- end 6.3/amd64 /var/run/dmesg.boot ---

--- begin 6.2/amd64 dmesg for comparison ---
OpenBSD 6.2 (GENERIC.MP) #134: Tue Oct  3 21:22:29 MDT 2017
    dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 16845565952 (16065MB)
avail mem = 16328007680 (15571MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdae9c000 (69 entries)
bios0: vendor LENOVO version "G4ETA7WW (2.67 )" date 08/24/2016
bios0: LENOVO 24292A9
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SLIC TCPA SSDT SSDT SSDT HPET APIC MCFG ECDT FPDT ASF! 
UEFI UEFI POAT SSDT SSDT UEFI DBG2
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP3(S4) XHCI(S3) EHC1(S3) 
EHC2(S3) HDEF(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz, 2893.84 MHz
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: TSC frequency 2893841120 Hz
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz, 2893.43 MHz
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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpiec0 at acpi0
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG_)
acpiprt2 at acpi0: bus 2 (EXP1)
acpiprt3 at acpi0: bus 3 (EXP2)
acpiprt4 at acpi0: bus 4 (EXP3)
acpicpu0 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1, EHC2
acpitz0 at acpi0: critical temperature is 103 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
"LEN0071" at acpi0 not configured
"LEN0015" at acpi0 not configured
acpibat0 at acpi0: BAT0 model "45N1001" serial  1364 type LION oem "SANYO"
acpiac0 at acpi0: AC unit online
"LEN0078" at acpi0 not configured
acpithinkpad0 at acpi0
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpivideo0 at acpi0: VID_
acpivout at acpivideo0 not configured
acpivideo1 at acpi0: VID_
cpu0: Enhanced SpeedStep 2893 MHz: speeds: 2901, 2900, 2800, 2700, 2500, 2400, 
2300, 2200, 2000, 1900, 1800, 1700, 1600, 1400, 1300, 1200 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 3G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 4000" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1920x1080, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
xhci0 at pci0 dev 20 function 0 "Intel 7 Series xHCI" rev 0x04: msi
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 7 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address 
3c:97:0e:84:e7:c5
ehci0 at pci0 dev 26 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 16
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 
addr 1
azalia0 at pci0 dev 27 function 0 "Intel 7 Series HD Audio" rev 0x04: msi
azalia0: codecs: Realtek ALC269
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4: msi
pci1 at ppb0 bus 2
sdhc0 at pci1 dev 0 function 0 "Ricoh 5U823 SD/MMC" rev 0x05: apic 2 int 16
sdhc0: SDHC 3.0, 50 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
"Ricoh 5U832 Firewire" rev 0x04 at pci1 dev 0 function 3 not configured
ppb1 at pci0 dev 28 function 1 "Intel 7 Series PCIE" rev 0xc4: msi
pci2 at ppb1 bus 3
iwn0 at pci2 dev 0 function 0 "Intel Centrino Advanced-N 6205" rev 0x34: msi, 
MIMO 2T2R, MoW, address 84:3a:4b:56:7a:dc
ppb2 at pci0 dev 28 function 2 "Intel 7 Series PCIE" rev 0xc4: msi
pci3 at ppb2 bus 4
ehci1 at pci0 dev 29 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 23
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 
addr 1
pcib0 at pci0 dev 31 function 0 "Intel QM77 LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 7 Series AHCI" rev 0x04: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 1: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, WDC WD10JFCX-68N, 82.0> SCSI3 0/direct 
fixed naa.50014ee60759ebae
sd0: 953869MB, 512 bytes/sector, 1953525168 sectors
cd0 at scsibus1 targ 1 lun 0: <HL-DT-ST, DVDRAM GT50N, LT20> ATAPI 5/cdrom 
removable
ichiic0 at pci0 dev 31 function 3 "Intel 7 Series SMBus" rev 0x04: apic 2 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x51: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
wsmouse1 at pms0 mux 0
pms0: Synaptics touchpad, firmware 7.2, 0x1c0b1 0xb40000
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
error: [drm:pid0:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo 
underrun on pch transcoder A
error: [drm:pid0:intel_pch_fifo_underrun_irq_handler] *ERROR* PCH transcoder A 
FIFO underrun
uhub3 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 
2.00/0.00 addr 2
ugen0 at uhub3 port 1 "Lenovo Integrated Smart Card Reader" rev 2.00/1.00 addr 3
ugen1 at uhub3 port 3 "Auth Biometric Coprocessor" rev 1.10/0.01 addr 4
uhub4 at uhub2 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 
2.00/0.00 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
sd1: 33282MB, 512 bytes/sector, 68163120 sectors
root on sd1a (d12ff21f5007980c.a) swap on sd1b dump on sd1b
--- end 6.2/amd64 dmesg for comparison ---

--- begin /var/log/X/Xorg.0.log ---
[  3062.068] (WW) checkDevMem: failed to open /dev/xf86 and /dev/mem
        (Operation not permitted)
        Check that you have set 'machdep.allowaperture=1'
        in /etc/sysctl.conf and reboot your machine
        refer to xf86(4) for details
[  3062.068]    linear framebuffer access unavailable
[  3062.090] (--) Using wscons driver on /dev/ttyC4
[  3062.105] 
X.Org X Server 1.19.6
Release Date: 2017-12-20
[  3062.105] X Protocol Version 11, Revision 0
[  3062.105] Build Operating System: OpenBSD 6.3 amd64 
[  3062.105] Current Operating System: OpenBSD iron.astro.indiana.edu 6.3 
GENERIC.MP#107 amd64
[  3062.105] Build Date: 24 March 2018  02:38:24PM
[  3062.105]  
[  3062.105] Current version of pixman: 0.34.0
[  3062.105]    Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
[  3062.105] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[  3062.105] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Apr 19 13:06:56 
2018
[  3062.105] (==) Using system config directory 
"/usr/X11R6/share/X11/xorg.conf.d"
[  3062.105] (==) No Layout section.  Using the first Screen section.
[  3062.105] (==) No screen section available. Using defaults.
[  3062.105] (**) |-->Screen "Default Screen Section" (0)
[  3062.105] (**) |   |-->Monitor "<default monitor>"
[  3062.106] (==) No monitor specified for screen "Default Screen Section".
        Using a default monitor configuration.
[  3062.106] (==) Automatically adding devices
[  3062.106] (==) Automatically enabling devices
[  3062.106] (==) Not automatically adding GPU devices
[  3062.106] (==) Max clients allowed: 256, resource mask: 0x1fffff
[  3062.106] (==) FontPath set to:
        /usr/X11R6/lib/X11/fonts/misc/,
        /usr/X11R6/lib/X11/fonts/TTF/,
        /usr/X11R6/lib/X11/fonts/OTF/,
        /usr/X11R6/lib/X11/fonts/Type1/,
        /usr/X11R6/lib/X11/fonts/100dpi/,
        /usr/X11R6/lib/X11/fonts/75dpi/
[  3062.106] (==) ModulePath set to "/usr/X11R6/lib/modules"
[  3062.106] (II) The server relies on wscons to provide the list of input 
devices.
        If no devices become available, reconfigure wscons or disable 
AutoAddDevices.
[  3062.106] (II) Loader magic: 0x198febc42000
[  3062.106] (II) Module ABI versions:
[  3062.106]    X.Org ANSI C Emulation: 0.4
[  3062.106]    X.Org Video Driver: 23.0
[  3062.106]    X.Org XInput driver : 24.1
[  3062.106]    X.Org Server Extension : 10.0
[  3062.106] (--) PCI:*(0:0:2:0) 8086:0166:17aa:21f5 rev 9, Mem @ 
0xf0000000/4194304, 0xe0000000/268435456, I/O @ 0x00006000/64
[  3062.106] (II) LoadModule: "glx"
[  3062.106] (II) Loading /usr/X11R6/lib/modules/extensions/libglx.so
[  3062.108] (II) Module glx: vendor="X.Org Foundation"
[  3062.108]    compiled for 1.19.6, module version = 1.0.0
[  3062.108]    ABI class: X.Org Server Extension, version 10.0
[  3062.108] (==) Matched modesetting as autoconfigured driver 0
[  3062.108] (==) Assigned the driver to the xf86ConfigLayout
[  3062.108] (II) LoadModule: "modesetting"
[  3062.108] (II) Loading /usr/X11R6/lib/modules/drivers/modesetting_drv.so
[  3062.108] (II) Module modesetting: vendor="X.Org Foundation"
[  3062.108]    compiled for 1.19.6, module version = 1.19.6
[  3062.108]    Module class: X.Org Video Driver
[  3062.108]    ABI class: X.Org Video Driver, version 23.0
[  3062.108] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[  3062.109] (**) modeset(0): claimed PCI slot 0@0:2:0
[  3062.109] (II) modeset(0): using default device
[  3062.109] (II) modeset(0): Creating default Display subsection in Screen 
section
        "Default Screen Section" for depth/fbbpp 24/32
[  3062.109] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
[  3062.109] (==) modeset(0): RGB weight 888
[  3062.109] (==) modeset(0): Default visual is TrueColor
[  3062.109] (II) Loading sub module "glamoregl"
[  3062.109] (II) LoadModule: "glamoregl"
[  3062.110] (II) Loading /usr/X11R6/lib/modules/libglamoregl.so
[  3062.115] (II) Module glamoregl: vendor="X.Org Foundation"
[  3062.115]    compiled for 1.19.6, module version = 1.0.0
[  3062.115]    ABI class: X.Org ANSI C Emulation, version 0.4
[  3062.115] (II) glamor: OpenGL accelerated X.org driver based.
[  3062.128] (II) glamor: EGL version 1.4 (DRI2):
[  3062.130] (II) modeset(0): glamor initialized
[  3062.130] (II) modeset(0): Output LVDS-1 has no monitor section
[  3062.132] (II) modeset(0): Output VGA-1 has no monitor section
[  3062.132] (II) modeset(0): EDID for output LVDS-1
[  3062.132] (II) modeset(0): Manufacturer: LEN  Model: 40b2  Serial#: 0
[  3062.132] (II) modeset(0): Year: 2009  Week: 1
[  3062.132] (II) modeset(0): EDID Version: 1.3
[  3062.132] (II) modeset(0): Digital Display Input
[  3062.132] (II) modeset(0): Max Image Size [cm]: horiz.: 34  vert.: 19
[  3062.132] (II) modeset(0): Gamma: 2.20
[  3062.132] (II) modeset(0): DPMS capabilities: StandBy Suspend Off
[  3062.132] (II) modeset(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 
[  3062.132] (II) modeset(0): First detailed timing is preferred mode
[  3062.132] (II) modeset(0): redX: 0.676 redY: 0.314   greenX: 0.215 greenY: 
0.665
[  3062.132] (II) modeset(0): blueX: 0.141 blueY: 0.069   whiteX: 0.313 whiteY: 
0.329
[  3062.132] (II) modeset(0): Manufacturer's mask: 0
[  3062.132] (II) modeset(0): Supported detailed timing:
[  3062.132] (II) modeset(0): clock: 139.0 MHz   Image Size:  344 x 193 mm
[  3062.132] (II) modeset(0): h_active: 1920  h_sync: 1980  h_sync_end 2028 
h_blank_end 2050 h_border: 0
[  3062.132] (II) modeset(0): v_active: 1080  v_sync: 1090  v_sync_end 1100 
v_blanking: 1130 v_border: 0
[  3062.132] (II) modeset(0): Supported detailed timing:
[  3062.132] (II) modeset(0): clock: 115.8 MHz   Image Size:  344 x 193 mm
[  3062.132] (II) modeset(0): h_active: 1920  h_sync: 1980  h_sync_end 2028 
h_blank_end 2050 h_border: 0
[  3062.132] (II) modeset(0): v_active: 1080  v_sync: 1090  v_sync_end 1100 
v_blanking: 1130 v_border: 0
[  3062.132] (II) modeset(0): Unknown vendor-specific block f
[  3062.132] (II) modeset(0):  B156HW01 V4
[  3062.132] (II) modeset(0): EDID (in hex):
[  3062.132] (II) modeset(0):   00ffffffffffff0030aeb24000000000
[  3062.132] (II) modeset(0):   0113010380221378ea2135ad5037aa24
[  3062.132] (II) modeset(0):   11505400000001010101010101010101
[  3062.132] (II) modeset(0):   0101010101014c368082703832403c30
[  3062.132] (II) modeset(0):   aa0058c1100000183f2d808270383240
[  3062.132] (II) modeset(0):   3c30aa0058c1100000180000000f00d1
[  3062.132] (II) modeset(0):   0932d109281b190006af5634000000fe
[  3062.132] (II) modeset(0):   004231353648573031205634200a00d6
[  3062.132] (II) modeset(0): Printing probed modes for output LVDS-1
[  3062.132] (II) modeset(0): Modeline "1920x1080"x60.0  139.00  1920 1980 2028 
2050  1080 1090 1100 1130 -hsync -vsync (67.8 kHz eP)
[  3062.132] (II) modeset(0): Modeline "1920x1080"x50.0  115.83  1920 1980 2028 
2050  1080 1090 1100 1130 -hsync -vsync (56.5 kHz e)
[  3062.132] (II) modeset(0): Modeline "1400x1050"x60.0  122.00  1400 1488 1640 
1880  1050 1052 1064 1082 +hsync +vsync (64.9 kHz d)
[  3062.132] (II) modeset(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 
1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz d)
[  3062.133] (II) modeset(0): Modeline "1280x960"x60.0  108.00  1280 1376 1488 
1800  960 961 964 1000 +hsync +vsync (60.0 kHz d)
[  3062.133] (II) modeset(0): Modeline "1024x768"x120.1  133.47  1024 1100 1212 
1400  768 768 770 794 doublescan -hsync +vsync (95.3 kHz d)
[  3062.133] (II) modeset(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 
1344  768 771 777 806 -hsync -vsync (48.4 kHz d)
[  3062.133] (II) modeset(0): Modeline "960x720"x120.0  117.00  960 1024 1128 
1300  720 720 722 750 doublescan -hsync +vsync (90.0 kHz d)
[  3062.133] (II) modeset(0): Modeline "928x696"x120.1  109.15  928 976 1088 
1264  696 696 698 719 doublescan -hsync +vsync (86.4 kHz d)
[  3062.133] (II) modeset(0): Modeline "896x672"x120.0  102.40  896 960 1060 
1224  672 672 674 697 doublescan -hsync +vsync (83.7 kHz d)
[  3062.133] (II) modeset(0): Modeline "800x600"x120.0   81.00  800 832 928 
1080  600 600 602 625 doublescan +hsync +vsync (75.0 kHz d)
[  3062.133] (II) modeset(0): Modeline "800x600"x60.3   40.00  800 840 968 1056 
 600 601 605 628 +hsync +vsync (37.9 kHz d)
[  3062.133] (II) modeset(0): Modeline "800x600"x56.2   36.00  800 824 896 1024 
 600 601 603 625 +hsync +vsync (35.2 kHz d)
[  3062.133] (II) modeset(0): Modeline "700x525"x120.0   61.00  700 744 820 940 
 525 526 532 541 doublescan +hsync +vsync (64.9 kHz d)
[  3062.133] (II) modeset(0): Modeline "640x512"x120.0   54.00  640 664 720 844 
 512 512 514 533 doublescan +hsync +vsync (64.0 kHz d)
[  3062.133] (II) modeset(0): Modeline "640x480"x120.0   54.00  640 688 744 900 
 480 480 482 500 doublescan +hsync +vsync (60.0 kHz d)
[  3062.133] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  
480 490 492 525 -hsync -vsync (31.5 kHz d)
[  3062.133] (II) modeset(0): Modeline "512x384"x120.0   32.50  512 524 592 672 
 384 385 388 403 doublescan -hsync -vsync (48.4 kHz d)
[  3062.133] (II) modeset(0): Modeline "400x300"x120.6   20.00  400 420 484 528 
 300 300 302 314 doublescan +hsync +vsync (37.9 kHz d)
[  3062.133] (II) modeset(0): Modeline "400x300"x112.7   18.00  400 412 448 512 
 300 300 301 312 doublescan +hsync +vsync (35.2 kHz d)
[  3062.133] (II) modeset(0): Modeline "320x240"x120.1   12.59  320 328 376 400 
 240 245 246 262 doublescan -hsync -vsync (31.5 kHz d)
[  3062.135] (II) modeset(0): EDID for output VGA-1
[  3062.135] (II) modeset(0): Output LVDS-1 connected
[  3062.135] (II) modeset(0): Output VGA-1 disconnected
[  3062.135] (II) modeset(0): Using exact sizes for initial modes
[  3062.135] (II) modeset(0): Output LVDS-1 using initial mode 1920x1080 +0+0
[  3062.135] (==) modeset(0): Using gamma correction (1.0, 1.0, 1.0)
[  3062.135] (==) modeset(0): DPI set to (96, 96)
[  3062.135] (II) Loading sub module "fb"
[  3062.135] (II) LoadModule: "fb"
[  3062.136] (II) Loading /usr/X11R6/lib/modules/libfb.so
[  3062.136] (II) Module fb: vendor="X.Org Foundation"
[  3062.136]    compiled for 1.19.6, module version = 1.0.0
[  3062.136]    ABI class: X.Org ANSI C Emulation, version 0.4
[  3062.136] (==) Depth 24 pixmap format is 32 bpp
[  3062.253] (==) modeset(0): Backing store enabled
[  3062.253] (==) modeset(0): Silken mouse enabled
[  3062.253] (II) modeset(0): RandR 1.2 enabled, ignore the following RandR 
disabled message.
[  3062.253] (==) modeset(0): DPMS enabled
[  3062.253] (WW) modeset(0): DRI2: glamor lacks support for pixmap 
import/export
[  3062.253] (II) modeset(0): [DRI2] Setup complete
[  3062.253] (II) modeset(0): [DRI2]   DRI driver: i965
[  3062.253] (II) modeset(0): [DRI2]   VDPAU driver: i965
[  3062.253] (--) RandR disabled
[  3062.267] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer
[  3062.267] (II) AIGLX: enabled GLX_ARB_create_context
[  3062.267] (II) AIGLX: enabled GLX_ARB_create_context_profile
[  3062.267] (II) AIGLX: enabled GLX_EXT_create_context_es{,2}_profile
[  3062.267] (II) AIGLX: enabled GLX_INTEL_swap_event
[  3062.267] (II) AIGLX: enabled GLX_SGI_swap_control
[  3062.267] (II) AIGLX: enabled GLX_EXT_framebuffer_sRGB
[  3062.267] (II) AIGLX: enabled GLX_ARB_fbconfig_float
[  3062.267] (II) AIGLX: enabled GLX_EXT_fbconfig_packed_float
[  3062.267] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects
[  3062.267] (II) AIGLX: enabled GLX_ARB_create_context_robustness
[  3062.267] (II) AIGLX: Loaded and initialized i965
[  3062.267] (II) GLX: Initialized DRI2 GL provider for screen 0
[  3062.270] (II) modeset(0): Damage tracking initialized
[  3062.270] (II) modeset(0): Setting screen physical size to 508 x 285
[  3062.345] (II) config/wscons: checking input device /dev/wskbd
[  3062.345] (II) wskbd: using layout us
[  3062.345] (II) LoadModule: "kbd"
[  3062.346] (II) Loading /usr/X11R6/lib/modules/input/kbd_drv.so
[  3062.346] (II) Module kbd: vendor="X.Org Foundation"
[  3062.346]    compiled for 1.19.6, module version = 1.9.0
[  3062.346]    Module class: X.Org XInput Driver
[  3062.346]    ABI class: X.Org XInput driver, version 24.1
[  3062.346] (II) Using input driver 'kbd' for '/dev/wskbd'
[  3062.346] (**) /dev/wskbd: always reports core events
[  3062.346] (**) /dev/wskbd: always reports core events
[  3062.346] (**) Option "Protocol" "standard"
[  3062.346] (**) Option "XkbRules" "base"
[  3062.346] (**) Option "XkbModel" "pc105"
[  3062.346] (**) Option "XkbLayout" "us"
[  3062.346] (II) XINPUT: Adding extended input device "/dev/wskbd" (type: 
KEYBOARD, id 6)
[  3062.812] (II) config/wscons: checking input device /dev/wsmouse0
[  3062.812] (II) LoadModule: "ws"
[  3062.814] (II) Loading /usr/X11R6/lib/modules/input/ws_drv.so
[  3062.814] (II) Module ws: vendor="X.Org Foundation"
[  3062.814]    compiled for 1.19.6, module version = 1.3.0
[  3062.814]    Module class: X.Org XInput Driver
[  3062.815]    ABI class: X.Org XInput driver, version 24.1
[  3062.815] (II) Using input driver 'ws' for '/dev/wsmouse0'
[  3062.815] (**) /dev/wsmouse0: always reports core events
[  3062.815] (II) ws: /dev/wsmouse0: debuglevel 0
[  3062.815] (**) Option "Device" "/dev/wsmouse0"
[  3062.815] (**) ws: /dev/wsmouse0: ZAxisMapping: buttons 4 and 5
[  3062.815] (**) ws: /dev/wsmouse0: WAxisMapping: buttons 6 and 7
[  3062.815] (**) ws: /dev/wsmouse0: associated screen: 0
[  3063.248] (II) ws: /dev/wsmouse0: minimum x position: 0
[  3063.248] (II) ws: /dev/wsmouse0: maximum x position: 1919
[  3063.248] (II) ws: /dev/wsmouse0: minimum y position: 0
[  3063.248] (II) ws: /dev/wsmouse0: maximum y position: 1079
[  3063.248] (==) ws: /dev/wsmouse0: Buttons: 7
[  3063.281] (**) ws: /dev/wsmouse0: YAxisMapping: buttons 4 and 5
[  3063.281] (II) XINPUT: Adding extended input device "/dev/wsmouse0" (type: 
MOUSE, id 7)
[  3063.712] (**) /dev/wsmouse0: (accel) keeping acceleration scheme 1
[  3063.712] (**) /dev/wsmouse0: (accel) acceleration profile 0
[  3063.712] (**) /dev/wsmouse0: (accel) acceleration factor: 2.000
[  3063.712] (**) /dev/wsmouse0: (accel) acceleration threshold: 4
[  3063.712] (II) config/wscons: checking input device /dev/wsmouse
[  3063.712] (II) Using input driver 'ws' for '/dev/wsmouse'
[  3063.712] (**) /dev/wsmouse: always reports core events
[  3063.713] (II) ws: /dev/wsmouse: debuglevel 0
[  3063.713] (**) Option "Device" "/dev/wsmouse"
[  3063.713] (**) ws: /dev/wsmouse: ZAxisMapping: buttons 4 and 5
[  3063.713] (**) ws: /dev/wsmouse: WAxisMapping: buttons 6 and 7
[  3063.713] (**) ws: /dev/wsmouse: associated screen: 0
[  3063.713] (II) ws: /dev/wsmouse: minimum x position: 0
[  3063.713] (II) ws: /dev/wsmouse: maximum x position: 1919
[  3063.713] (II) ws: /dev/wsmouse: minimum y position: 0
[  3063.713] (II) ws: /dev/wsmouse: maximum y position: 1079
[  3063.713] (==) ws: /dev/wsmouse: Buttons: 7
[  3063.713] (**) ws: /dev/wsmouse: YAxisMapping: buttons 4 and 5
[  3063.713] (II) XINPUT: Adding extended input device "/dev/wsmouse" (type: 
MOUSE, id 8)
[  3063.713] (**) /dev/wsmouse: (accel) keeping acceleration scheme 1
[  3063.713] (**) /dev/wsmouse: (accel) acceleration profile 0
[  3063.713] (**) /dev/wsmouse: (accel) acceleration factor: 2.000
[  3063.713] (**) /dev/wsmouse: (accel) acceleration threshold: 4
--- end /var/log/X/Xorg.0.log ---

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