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Index: head/share/man/man4/vt.4
===================================================================
--- head/share/man/man4/vt.4
+++ head/share/man/man4/vt.4
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 2, 2014
+.Dd October 16, 2014
.Dt "VIRTUAL TERMINALS" 4
.Os
.Sh NAME
@@ -45,7 +45,15 @@
.Xr loader.conf 5 :
.Cd hw.vga.textmode=1
.Cd kern.vty=vt
-.Cd kern.vt.spclkeys=15
+.Pp
+In
+.Xr loader.conf 5 or
+.Xr sysctl.conf 5 :
+.Cd kern.vt.kbd_halt=1
+.Cd kern.vt.kbd_poweroff=1
+.Cd kern.vt.kbd_reboot=1
+.Cd kern.vt.kbd_debug=1
+.Cd kern.vt.kbd_panic=0
.Sh DESCRIPTION
The
.Nm
@@ -185,30 +193,41 @@
Features that require graphics mode, like loadable fonts, will be
disabled.
.It Va kern.vty
-When both
-.Nm
-and
-.Xr sc 4 have been compiled into the kernel, the one to use for the
-system console can be selected by setting this value to
+Set this value to
.Ql vt
or
-.Ql sc .
-If this value is not set,
+.Ql sc
+to override the default driver used for the system console.
+By default,
.Xr sc 4
-is used.
-.It Va kern.vt.spclkeys
-bitmap of allowed special keys. 1 is enabled, 0 is disabled. Encoded as:
-.Bl -tag -compact -width 0x000000
-.It 0x0001
-Debug request key combination. (Ctrl+Alt+Esc)
-.It 0x0002
-Reboot. (Ctrl+Alt+Del)
-.It 0x0004
-Halt.
-.It 0x0008
-Power down.
-.El
-Default is 15, all enabled.
+is used on computers that boot from BIOS, and
+.Nm
+is used on computers that boot from UEFI.
+.Sh KEYBOARD SYSCTL TUNABLES
+These settings control whether certain special key combinations are enabled or
+ignored.
+The specific key combinations can be configured by using a
+.Xr keymap 5
+file.
+.Pp
+These settings can be entered at the
+.Xr loader 8
+prompt or in
+.Xr loader.conf 5
+and can also be changed at runtime with the
+.Xr sysctl 8
+command.
+.Bl -tag -width indent
+.It Va kern.vt.kbd_halt
+Enable halt keyboard combination.
+.It Va kern.vt.kbd_poweroff
+Enable power off key combination.
+.It Va kern.vt.kbd_reboot.
+Enable reboot key combination, usually Ctrl+Alt+Del.
+.It Va kern.vt.kbd_debug
+Enable debug request key combination, usually Ctrl+Alt+Esc.
+.It Va kern.vt.kbd_panic
+Enable panic key combination.
.El
.Sh FILES
.Bl -tag -width /usr/share/vt/keymaps/* -compact

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