wscons was the proper resolution, no clipping on either side (1920x1080), and device was properly identified as Fiji. Inside of X, the cursor was incorrect unless SWcursor was set in xorg.conf (off by 1 error?); ShadowPrimary works properly. Suspend and hibernate were both broken, suspend would hang at a black screen upon hitting the power button, and hibernate would boot to a graphical artifact covering the whole screen and freeze (X was running). X was very unstable, resulting in freezes that required resets; though I could prevent damage to the filesystem by temporarily holding the power button for ~3 seconds and the system will properly shutdown (trying to enter wscons, kill cwm with C-M-S-q did not work, C-M-Del did not work). As such, these freezes don't seem to be kernel panics. Vulkan worked as intended, OpenGL mostly worked, though when testing SuperTuxKart graphical artifacts made the game unplayable. outside of SuperTuxKart, the cursor, and the freezes, nothing out of the ordinary was notable in Minetest, Terraria, OpenMW, mpv, ffmpeg/ffplay, Firefox, Chromium, xterm, and cwm. This was tested on amdgpu-firmware-20190312.
OpenBSD 6.5-current (GENERIC.MP) #8: Thu Jul 4 20:14:31 EDT 2019 stan@pwuffy.OwOpenBSD.local:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 17099194368 (16307MB) avail mem = 16571428864 (15803MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 3.0 @ 0x8f9a8000 (94 entries) bios0: vendor American Megatrends Inc. version "3802" date 03/15/2018 bios0: ASUSTeK COMPUTER INC. Z170-A acpi0 at bios0: ACPI 6.0 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP APIC FPDT DBG2 MCFG SSDT FIDT SSDT SSDT HPET SSDT SSDT UEFI SSDT LPIT WSMT SSDT SSDT DBGP acpi0: wakeup devices PEGP(S4) PEG0(S4) PEGP(S4) PEG1(S4) PEGP(S4) PEG2(S4) SIO1(S3) PS2K(S4) PS2M(S4) UAR1(S4) PXSX(S4) RP09(S4) PXSX(S4) RP10(S4) PXSX(S4) RP11(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, 4012.31 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,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, 4010.80 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,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, 4010.80 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,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, 4010.80 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,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 0xe0000000, bus 0-255 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 6 (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 4 (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 2 (RP17) acpiprt18 at acpi0: bus -1 (RP18) acpiprt19 at acpi0: bus -1 (RP19) acpiprt20 at acpi0: bus -1 (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 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 acpipci0 at acpi0 PCI0: 0x00000004 0x00000011 0x00000001 acpicmos0 at acpi0 "PNP0C14" at acpi0 not configured acpibtn0 at acpi0: SLPB "PNP0C14" at acpi0 not configured "INT33A1" at acpi0 not configured acpibtn1 at acpi0: PWRB "PNP0C14" at acpi0 not configured acpivideo0 at acpi0: GFX0 acpivout0 at acpivideo0: DD1F cpu0: using VERW MDS workaround (except on vmm entry) cpu0: Enhanced SpeedStep 4012 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 ppb0 at pci0 dev 1 function 0 "Intel Core 6G PCIE" rev 0x07: msi pci1 at ppb0 bus 1 amdgpu0 at pci1 dev 0 function 0 "ATI Fiji" rev 0xc8 drm0 at amdgpu0 amdgpu0: msi azalia0 at pci1 dev 0 function 1 vendor "ATI", unknown product 0xaae8 rev 0x00: msi azalia0: no supported codecs 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: port 0: 6.0Gb/s ahci0: port 1: 6.0Gb/s ahci0: PHY offline on port 2 ahci0: PHY offline on port 3 ahci0: PHY offline on port 4 ahci0: PHY offline on port 5 scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, Samsung SSD 850, EMT0> SCSI3 0/direct fixed naa.5002538d4062b98e sd0: 238475MB, 512 bytes/sector, 488397168 sectors, thin sd1 at scsibus1 targ 1 lun 0: <ATA, ST2000DM001-1ER1, CC26> SCSI3 0/direct fixed naa.5000c5008757a2f3 sd1: 1907729MB, 512 bytes/sector, 3907029168 sectors ppb1 at pci0 dev 27 function 0 "Intel 100 Series PCIE" rev 0xf1: msi pci2 at ppb1 bus 2 ppb2 at pci0 dev 28 function 0 "Intel 100 Series PCIE" rev 0xf1: msi pci3 at ppb2 bus 3 xhci1 at pci3 dev 0 function 0 "ASMedia ASM1042AE xHCI" rev 0x00: msi, xHCI 1.10 usb1 at xhci1: USB revision 3.0 uhub1 at usb1 configuration 1 interface 0 "ASMedia xHCI root hub" rev 3.00/1.00 addr 1 ppb3 at pci0 dev 28 function 2 "Intel 100 Series PCIE" rev 0xf1: msi pci4 at ppb3 bus 4 ppb4 at pci4 dev 0 function 0 "ASMedia ASM1083/1085 PCIE-PCI" rev 0x04 pci5 at ppb4 bus 5 ppb5 at pci0 dev 29 function 0 "Intel 100 Series PCIE" rev 0xf1: msi pci6 at ppb5 bus 6 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 ichiic0 at pci0 dev 31 function 4 "Intel 100 Series SMBus" rev 0x31: apic 2 int 16 iic0 at ichiic0 em0 at pci0 dev 31 function 6 "Intel I219-V" rev 0x31: msi, address 30:5a:3a:54:95:f8 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 uaudio0 at uhub0 port 6 configuration 1 interface 1 "Focusrite Scarlett Solo USB" rev 2.00/2.80 addr 2 uaudio0: class v2, high-speed, async, channels: 2 play, 2 rec, 0 ctls audio0 at uaudio0 ugen0 at uhub0 port 6 configuration 1 "Focusrite Scarlett Solo USB" rev 2.00/2.80 addr 2 uhidev0 at uhub0 port 9 configuration 1 interface 0 "SteelSeries Rival Gaming Mouse" rev 1.10/1.08 addr 3 uhidev0: iclass 3/0 uhid0 at uhidev0: input=32, output=32, feature=255 uhidev1 at uhub0 port 9 configuration 1 interface 1 "SteelSeries Rival Gaming Mouse" rev 1.10/1.08 addr 3 uhidev1: iclass 3/1 ums0 at uhidev1: 8 buttons, Z dir wsmouse0 at ums0 mux 0 uhidev2 at uhub0 port 9 configuration 1 interface 2 "SteelSeries Rival Gaming Mouse" rev 1.10/1.08 addr 3 uhidev2: iclass 3/1 ukbd0 at uhidev2: 8 variable keys, 6 key codes wskbd1 at ukbd0 mux 1 uhidev3 at uhub0 port 9 configuration 1 interface 3 "SteelSeries Rival Gaming Mouse" rev 1.10/1.08 addr 3 uhidev3: iclass 3/0 uhid1 at uhidev3: input=4, output=0, feature=0 uhidev4 at uhub0 port 10 configuration 1 interface 0 "Holtek USB Keyboard" rev 1.10/2.09 addr 4 uhidev4: iclass 3/1 ukbd1 at uhidev4: 8 variable keys, 6 key codes wskbd2 at ukbd1 mux 1 uhidev5 at uhub0 port 10 configuration 1 interface 1 "Holtek USB Keyboard" rev 1.10/2.09 addr 4 uhidev5: iclass 3/1, 2 report ids uhid2 at uhidev5 reportid 1: input=6, output=0, feature=0 uhid3 at uhidev5 reportid 2: input=1, output=0, feature=0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on sd0a (d00ed4e07a995c95.a) swap on sd0b dump on sd0b initializing kernel modesetting (FIJI 0x1002:0x7300 0x1002:0x0B36 0xC8). amdgpu_irq_add_domain: stub amdgpu_device_resize_fb_bar: stub amdgpu: [powerplay] Failed to retrieve minimum clocks. [drm] dce110_link_encoder_construct: Failed to get encoder_cap_info from VBIOS with error code 4! amdgpu0: 1920x1080, 32bpp wsdisplay0 at amdgpu0 mux 1: console (std, vt100 emulation), using wskbd0 wskbd1: connecting to wsdisplay0 wskbd2: connecting to wsdisplay0 wsdisplay0: screen 1-5 added (std, vt100 emulation) uaudio0: too many frames for rec xfer: done = 4464, blksz = 4496 uaudio0: 0: bad rec intr count uaudio0: too many frames for rec xfer: done = 4560, blksz = 4496 uaudio0: 2: bad rec intr count firefox[44678]: pledge "tty", syscall 54 firefox[19340]: pledge "tty", syscall 54