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Improve markup, change references to nonexistent vt_vga(4), remove some

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language redundancy, and move the examples so sections are in the
standard order.

MFC after:	1 week
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Warren Block 2014-07-02 22:16:01 +00:00
parent 054b57a740
commit 8329214d99
1 changed files with 30 additions and 26 deletions
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56
share/man/man4/vt.4
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@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd June 27, 2014
.Dd July 2, 2014
.Dt "VIRTUAL TERMINALS" 4
.Os
.Sh NAME
@ -109,10 +109,10 @@ These kernel options control the
.Nm
driver.
.Bl -tag -width MAXCONS
.It Dv TERMINAL_NORM_ATTR=_attribute_
.It Dv TERMINAL_KERN_ATTR=_attribute_
These options allow to change the default colors used for normal and kernel
text respectively.
.It Dv TERMINAL_NORM_ATTR= Ns Pa attribute
.It Dv TERMINAL_KERN_ATTR= Ns Pa attribute
These options allow changing the default colors used for normal and kernel
text.
Available colors are defined in
.In sys/terminal.h .
See
@ -165,13 +165,13 @@ is set, the system remains in text mode.
Otherwise,
.Nm
switches to 640x480x16 VGA mode using
.Xr vt_vga 4 .
.Cm vt_vga .
If a KMS
.Pq Kernel Mode Switching
video driver is available, the display is switched to high resolution
and the KMS driver takes over.
When a KMS driver is not available,
.Xr vt_vga 4
.Cm vt_vga
remains active.
.Sh LOADER TUNABLES
These settings can be entered at the
@ -184,27 +184,18 @@ Set to 1 to use virtual terminals in text mode instead of graphics mode.
Features that require graphics mode, like loadable fonts, will be
disabled.
.It Va kern.vty
Set to vt to choose the
When both
.Nm
driver for the system console, if the
.Xr syscons 4
driver is also compiled in and is the default.
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
.Ql vt
or
.Ql sc .
If this value is not set,
.Xr sc 4
is used.
.El
.Sh EXAMPLES
The following line will change the default color of normal text.
Normal text will be green on black background.
Reversed normal text will be black on green background.
Note that you cannot put any white space inside the quoted string,
because of the current implementation of
.Xr config 8 .
.Pp
.Dl "options TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK)"
.Pp
The following line will change the default color of kernel messages.
Kernel messages will be printed bright red on black background.
Reversed kernel messages will be black on bright red background.
.Pp
.Dl "options TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK)"
.Sh FILES
.Bl -tag -width /usr/share/syscons/keymaps/* -compact
.It Pa /dev/console
@ -214,6 +205,19 @@ virtual terminals
.It Pa /etc/ttys
terminal initialization information
.El
.Sh EXAMPLES
This example changes the default color of normal text to green on a
black background, or black on a green background when reversed.
Note that white space cannot be used inside the attribute string
because of the current implementation of
.Xr config 8 .
.Pp
.Dl "options TERMINAL_NORM_ATTR=(FG_GREEN|BG_BLACK)"
.Pp
This line changes the default color of kernel messages to be bright red
on a black background, or black on a bright red background when reversed.
.Pp
.Dl "options TERMINAL_KERN_ATTR=(FG_LIGHTRED|BG_BLACK)"
.Sh SEE ALSO
.Xr kbdcontrol 1 ,
.Xr login 1 ,