Current File : //usr/src/linux-headers-5.15.0-125-generic/drivers/video/console/Kconfig
# SPDX-License-Identifier: GPL-2.0-only
#
# Video configuration
#
menu "Console display driver support"
config VGA_CONSOLE
bool "VGA text console" if EXPERT || !X86
depends on !4xx && !PPC_8xx && !SPARC && !M68K && !PARISC && !SUPERH && \
(!ARM || ARCH_FOOTBRIDGE || ARCH_INTEGRATOR || ARCH_NETWINDER) && \
!ARM64 && !ARC && !MICROBLAZE && !OPENRISC && !NDS32 && !S390 && !UML
default y
help
Saying Y here will allow you to use Linux in text mode through a
display that complies with the generic VGA standard. Virtually
everyone wants that.
The program SVGATextMode can be used to utilize SVGA video cards to
their full potential in text mode. Download it from
<ftp://ibiblio.org/pub/Linux/utils/console/>.
Say Y.
config MDA_CONSOLE
depends on !M68K && !PARISC && ISA
tristate "MDA text console (dual-headed)"
help
Say Y here if you have an old MDA or monochrome Hercules graphics
adapter in your system acting as a second head ( = video card). You
will then be able to use two monitors with your Linux system. Do not
say Y here if your MDA card is the primary card in your system; the
normal VGA driver will handle it.
To compile this driver as a module, choose M here: the
module will be called mdacon.
If unsure, say N.
config SGI_NEWPORT_CONSOLE
tristate "SGI Newport Console support"
depends on SGI_IP22 && HAS_IOMEM
select FONT_SUPPORT
help
Say Y here if you want the console on the Newport aka XL graphics
card of your Indy. Most people say Y here.
config DUMMY_CONSOLE
bool
default y
config DUMMY_CONSOLE_COLUMNS
int "Initial number of console screen columns"
depends on DUMMY_CONSOLE && !ARM
default 160 if PARISC
default 80
help
On PA-RISC, the default value is 160, which should fit a 1280x1024
monitor.
Select 80 if you use a 640x480 resolution by default.
config DUMMY_CONSOLE_ROWS
int "Initial number of console screen rows"
depends on DUMMY_CONSOLE && !ARM
default 64 if PARISC
default 25
help
On PA-RISC, the default value is 64, which should fit a 1280x1024
monitor.
Select 25 if you use a 640x480 resolution by default.
config FRAMEBUFFER_CONSOLE
bool "Framebuffer Console support"
depends on FB && !UML
select VT_HW_CONSOLE_BINDING
select CRC32
select FONT_SUPPORT
help
Low-level framebuffer-based console driver.
config FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
bool "Enable legacy fbcon hardware acceleration code"
depends on FRAMEBUFFER_CONSOLE
default y if PARISC
default n
help
This option enables the fbcon (framebuffer text-based) hardware
acceleration for graphics drivers which were written for the fbdev
graphics interface.
On modern machines, on mainstream machines (like x86-64) or when
using a modern Linux distribution those fbdev drivers usually aren't used.
So enabling this option wouldn't have any effect, which is why you want
to disable this option on such newer machines.
If you compile this kernel for older machines which still require the
fbdev drivers, you may want to say Y.
If unsure, select n.
config FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
bool "Map the console to the primary display device"
depends on FRAMEBUFFER_CONSOLE
default n
help
If this option is selected, the framebuffer console will
automatically select the primary display device (if the architecture
supports this feature). Otherwise, the framebuffer console will
always select the first framebuffer driver that is loaded. The latter
is the default behavior.
You can always override the automatic selection of the primary device
by using the fbcon=map: boot option.
If unsure, select n.
config FRAMEBUFFER_CONSOLE_ROTATION
bool "Framebuffer Console Rotation"
depends on FRAMEBUFFER_CONSOLE
help
Enable display rotation for the framebuffer console. This is done
in software and may be significantly slower than a normally oriented
display. Note that the rotation is done at the console level only
such that other users of the framebuffer will remain normally
oriented.
config FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
bool "Framebuffer Console Deferred Takeover"
depends on FB=y && FRAMEBUFFER_CONSOLE && DUMMY_CONSOLE
help
If enabled this defers the framebuffer console taking over the
console from the dummy console until the first text is displayed on
the console. This is useful in combination with the "quiet" kernel
commandline option to keep the framebuffer contents initially put up
by the firmware in place, rather then replacing the contents with a
black screen as soon as fbcon loads.
config STI_CONSOLE
bool "STI text console"
depends on PARISC && HAS_IOMEM
select FONT_SUPPORT
select CRC32
default y
help
The STI console is the builtin display/keyboard on HP-PARISC
machines. Say Y here to build support for it into your kernel.
The alternative is to use your primary serial port as a console.
endmenu
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