After upgrading to the last packaged version of firefox, browsing become once again unusable. This time the problem seems due to rendering, as switching back to the "intel" driver made the rendering of the pages normal again. With the "modesetting" driver it takes multiple seconds and scrolling is not smooth.
$ pkg_info -q|grep firefox firefox-60.0 On top of that, trying to download a file using the "save as" menu result in a pledge problem: firefox[35328]: pledge "getpw", syscall 33 firefox[35328]: pledge "stdio", syscall 87 firefox[91987]: pledge "getpw", syscall 33 Workaround: $ cat /etc/X11/xorg.conf Section "Device" Identifier "Device0" Driver "intel" EndSection OpenBSD 6.3-current (GENERIC.MP) #38: Wed May 9 17:38:06 MDT 2018 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 8238301184 (7856MB) avail mem = 7980589056 (7610MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xccbfd000 (65 entries) bios0: vendor LENOVO version "N14ET26W (1.04 )" date 01/23/2015 bios0: LENOVO 20BS006BGE acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP SLIC ASF! HPET ECDT APIC MCFG SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT PCCT SSDT UEFI MSDM BATB FPDT UEFI DMAR acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP2(S4) XHCI(S3) EHC1(S3) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpihpet0 at acpi0: 14318179 Hz acpiec0 at acpi0 acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz, 2295.09 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,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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,SENSOR,ARAT,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 99MHz cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz, 2294.70 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,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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN cpu1: 256KB 64b/line 8-way L2 cache cpu1: smt 1, core 0, package 0 cpu2 at mainbus0: apid 2 (application processor) cpu2: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz, 2294.70 MHz 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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN cpu2: 256KB 64b/line 8-way L2 cache cpu2: smt 0, core 1, package 0 cpu3 at mainbus0: apid 3 (application processor) cpu3: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz, 2294.70 MHz 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,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN cpu3: 256KB 64b/line 8-way L2 cache cpu3: smt 1, core 1, package 0 ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 40 pins acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PEG_) acpiprt2 at acpi0: bus 3 (EXP1) acpiprt3 at acpi0: bus 4 (EXP2) acpiprt4 at acpi0: bus -1 (EXP3) acpiprt5 at acpi0: bus -1 (EXP6) acpicpu0 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS acpicpu1 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS acpicpu2 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS acpicpu3 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1 acpipwrres1 at acpi0: NVP3, resource for PEG_ acpipwrres2 at acpi0: NVP2, resource for PEG_ acpitz0 at acpi0: critical temperature is 128 degC acpibtn0 at acpi0: LID_ acpibtn1 at acpi0: SLPB acpicmos0 at acpi0 "LEN0071" at acpi0 not configured "LEN0048" at acpi0 not configured acpibat0 at acpi0: BAT0 model "00HW003" serial 887 type LiP oem "SMP" acpiac0 at acpi0: AC unit online acpithinkpad0 at acpi0 "PNP0C14" at acpi0 not configured "PNP0C14" at acpi0 not configured "PNP0C14" at acpi0 not configured "INT340F" at acpi0 not configured acpivideo0 at acpi0: VID_ acpivout at acpivideo0 not configured acpivideo1 at acpi0: VID_ cpu0: Enhanced SpeedStep 2295 MHz: speeds: 2401, 2400, 2300, 2100, 2000, 1900, 1700, 1600, 1400, 1300, 1200, 1000, 900, 800, 600, 500 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel Core 5G Host" rev 0x09 inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 5500" rev 0x09 drm0 at inteldrm0 inteldrm0: msi inteldrm0: 2560x1440, 32bpp wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation) wsdisplay0: screen 1-5 added (std, vt100 emulation) azalia0 at pci0 dev 3 function 0 "Intel Core 5G HD Audio" rev 0x09: msi xhci0 at pci0 dev 20 function 0 "Intel 9 Series xHCI" rev 0x03: 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 9 Series MEI" rev 0x03 at pci0 dev 22 function 0 not configured em0 at pci0 dev 25 function 0 "Intel I218-V" rev 0x03: msi, address 54:ee:75:43:b3:62 azalia1 at pci0 dev 27 function 0 "Intel 9 Series HD Audio" rev 0x03: msi azalia1: codecs: Realtek ALC292 audio0 at azalia1 ppb0 at pci0 dev 28 function 0 "Intel 9 Series PCIE" rev 0xe3: msi pci1 at ppb0 bus 3 ppb1 at pci0 dev 28 function 1 "Intel 9 Series PCIE" rev 0xe3: msi pci2 at ppb1 bus 4 iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 7265" rev 0x59, msi pcib0 at pci0 dev 31 function 0 "Intel 9 Series LPC" rev 0x03 ahci0 at pci0 dev 31 function 2 "Intel 9 Series AHCI" rev 0x03: msi, AHCI 1.3 ahci0: port 3: 6.0Gb/s scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 3 lun 0: <ATA, SAMSUNG MZNTE256, EXT2> SCSI3 0/direct fixed naa.5002538844584d30 sd0: 244198MB, 512 bytes/sector, 500118192 sectors, thin ichiic0 at pci0 dev 31 function 3 "Intel 9 Series SMBus" rev 0x03: apic 2 int 18 iic0 at ichiic0 pchtemp0 at pci0 dev 31 function 6 "Intel 9 Series Thermal" rev 0x03 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 clickpad, firmware 8.1, 0x1e2b1 0x943300 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 vmm0 at mainbus0: VMX/EPT Unclaimed register detected before reading register 0x23a0 uhub1 at uhub0 port 3 configuration 1 interface 0 "LENOVO ONELINK DOCK" rev 2.10/50.70 addr 2 uhub2 at uhub1 port 2 configuration 1 interface 0 "Terminus Technology USB 2.0 Hub [MTT]" rev 2.00/1.00 addr 3 uaudio0 at uhub2 port 1 configuration 1 interface 0 "C-Media Electronics Inc. ThinkPad OneLink Dock USB Audio" rev 1.10/1.15 addr 4 uaudio0: audio rev 1.00, 7 mixer controls audio1 at uaudio0 uhidev0 at uhub2 port 1 configuration 1 interface 3 "C-Media Electronics Inc. ThinkPad OneLink Dock USB Audio" rev 1.10/1.15 addr 4 uhidev0: iclass 3/0, 1 report id uhid0 at uhidev0 reportid 1: input=15, output=15, feature=0 uftdi0 at uhub2 port 2 configuration 1 interface 0 "FTDI USB Serial Converter" rev 2.00/6.00 addr 5 ucom0 at uftdi0 portno 1 uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony Electronics Co.,Ltd. Integrated Camera" rev 2.00/0.29 addr 6 video0 at uvideo0 uhub3 at uhub0 port 14 configuration 1 interface 0 "LENOVO ONELINK DOCK" rev 3.00/50.74 addr 7 axen0 at uhub3 port 1 configuration 1 interface 0 "ASIX Elec. Corp. ThinkPad OneLink GigaLAN" rev 3.00/1.00 addr 8 axen0: AX88179, address 00:50:b6:ca:57:c0 rgephy0 at axen0 phy 3: RTL8169S/8110S/8211 PHY, rev. 5 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets softraid0: sd1 was not shutdown properly sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed sd1: 244190MB, 512 bytes/sector, 500102858 sectors root on sd1a (72519550243ad631.a) swap on sd1b dump on sd1b WARNING: / was not properly unmounted iwm0: hw rev 0x210, fw ver 16.242414.0, address 60:57:18:c1:8b:d5 error: [drm:pid71486:intel_pipe_update_start] *ERROR* Potential atomic update failure on pipe A audio1 detached uaudio0 detached uhid0 detached uhidev0 detached ucom0 detached uftdi0 detached uhub2 detached uhub1 detached rgephy0 detached axen0 detached uhub3 detached video0 detached uvideo0 detached uhub0 detached uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 addr 1 uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony Electronics Co.,Ltd. Integrated Camera" rev 2.00/0.29 addr 2 video0 at uvideo0 video0 detached uvideo0 detached uhub0 detached uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 addr 1 uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony Electronics Co.,Ltd. Integrated Camera" rev 2.00/0.29 addr 2 video0 at uvideo0 video0 detached uvideo0 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 3 configuration 1 interface 0 "LENOVO ONELINK DOCK" rev 2.10/50.70 addr 2 uhub2 at uhub1 port 2 configuration 1 interface 0 "Terminus Technology USB 2.0 Hub [MTT]" rev 2.00/1.00 addr 3 uaudio0 at uhub2 port 1 configuration 1 interface 0 "C-Media Electronics Inc. ThinkPad OneLink Dock USB Audio" rev 1.10/1.15 addr 4 uaudio0: audio rev 1.00, 7 mixer controls audio1 at uaudio0 uhidev0 at uhub2 port 1 configuration 1 interface 3 "C-Media Electronics Inc. ThinkPad OneLink Dock USB Audio" rev 1.10/1.15 addr 4 uhidev0: iclass 3/0, 1 report id uhid0 at uhidev0 reportid 1: input=15, output=15, feature=0 uftdi0 at uhub2 port 2 configuration 1 interface 0 "FTDI USB Serial Converter" rev 2.00/6.00 addr 5 ucom0 at uftdi0 portno 1 uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony Electronics Co.,Ltd. Integrated Camera" rev 2.00/0.29 addr 6 video0 at uvideo0 uhub3 at uhub0 port 14 configuration 1 interface 0 "LENOVO ONELINK DOCK" rev 3.00/50.74 addr 7 axen0 at uhub3 port 1 configuration 1 interface 0 "ASIX Elec. Corp. ThinkPad OneLink GigaLAN" rev 3.00/1.00 addr 8 axen0: AX88179, address 00:50:b6:ca:57:c0 rgephy0 at axen0 phy 3: RTL8169S/8110S/8211 PHY, rev. 5 error: [drm:pid48759:intel_pipe_update_start] *ERROR* Potential atomic update failure on pipe A firefox[35328]: pledge "getpw", syscall 33 firefox[35328]: pledge "stdio", syscall 87 firefox[91987]: pledge "getpw", syscall 33 error: [drm:pid48759:intel_pipe_update_start] *ERROR* Potential atomic update failure on pipe A