[Bug 210446] vt(4) when switching between virtual consoles there is a 4 second hesitation in graph mode.

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210446

            Bug ID: 210446
           Summary: vt(4) when switching between virtual consoles there is
                    a 4 second hesitation in graph mode.
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Keywords: vt
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: joeb1 at a1poweruser.com
                CC: emaste at freebsd.org

Running 11.0-ALPHA4-i386-20160617-r301975
vt defaults to graph mode.
When switching between virtual consoles there is a 4 second hesitation.
In text mode no hesitation when switching between virtual consoles.
Hardware details follow.

CPU: Intel(R) Celeron(R) CPU 2.66GHz (2660.05-MHz 686-class CPU)
  Origin="GenuineIntel"  Id=0xf41  Family=0xf  Model=0x4  Stepping=1
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x441d<SSE3,DTES64,MON,DS_CPL,CNXT-ID,xTPR>
  TSC: P-state invariant
real memory  = 1073741824 (1024 MB)
avail memory = 1023901696 (976 MB)
Event timer "LAPIC" quality 400
ACPI APIC Table: <DELL   3000   >
random: <Software, Yarrow> initialized
ioapic0: Changing APIC ID to 1
ioapic0 <Version 2.0> irqs 0-23 on motherboard
acpi0: <DELL 3000   > on motherboard
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
atrtc0: <AT realtime clock> port 0x70-0x7f irq 8 on acpi0
Event timer "RTC" frequency 32768 Hz quality 0
attimer0: <AT timer> port 0x40-0x5f irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
acpi_button0: <Power Button> on acpi0
vgapci0: <VGA-compatible display> port 0xefa8-0xefaf mem
0xe8000000-0xefffffff,0xfeb80000-0xfebfffff irq 16 at device 2.0 on pci0
agp0: <Intel 82865G (865G GMCH) SVGA controller> on vgapci0
agp0: aperture size is 128M, detected 892k stolen memory
vgapci0: Boot video device
ata0: <ATA channel> at channel 0 on atapci0
ata1: <ATA channel> at channel 1 on atapci0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model IntelliMouse, device ID 3
orm0: <ISA Option ROMs> at iomem 0xc0000-0xca7ff,0xca800-0xcbfff pnpid ORM0000
on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
random: unblocking device.

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