tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Video configuration
4#
5
6menu "Console display driver support"
7
8config VGA_CONSOLE
9 bool "VGA text console" if EXPERT || !X86
10 depends on ALPHA || X86 || \
11 (ARM && ARCH_FOOTBRIDGE) || \
12 (MIPS && (MIPS_MALTA || SIBYTE_BCM112X || SIBYTE_SB1250 || SIBYTE_BCM1x80 || SNI_RM))
13 select APERTURE_HELPERS if (DRM || FB || VFIO_PCI_CORE)
14 default y
15 help
16 Saying Y here will allow you to use Linux in text mode through a
17 display that complies with the generic VGA standard. Virtually
18 everyone wants that.
19
20 The program SVGATextMode can be used to utilize SVGA video cards to
21 their full potential in text mode. Download it from
22 <ftp://ibiblio.org/pub/Linux/utils/console/>.
23
24 Say Y.
25
26config MDA_CONSOLE
27 depends on !M68K && !PARISC && ISA
28 tristate "MDA text console (dual-headed)"
29 help
30 Say Y here if you have an old MDA or monochrome Hercules graphics
31 adapter in your system acting as a second head ( = video card). You
32 will then be able to use two monitors with your Linux system. Do not
33 say Y here if your MDA card is the primary card in your system; the
34 normal VGA driver will handle it.
35
36 To compile this driver as a module, choose M here: the
37 module will be called mdacon.
38
39 If unsure, say N.
40
41config SGI_NEWPORT_CONSOLE
42 tristate "SGI Newport Console support"
43 depends on SGI_IP22 && HAS_IOMEM
44 select FONT_SUPPORT
45 help
46 Say Y here if you want the console on the Newport aka XL graphics
47 card of your Indy. Most people say Y here.
48
49config DUMMY_CONSOLE
50 bool
51 default y
52
53config DUMMY_CONSOLE_COLUMNS
54 int "Initial number of console screen columns"
55 depends on DUMMY_CONSOLE && !ARCH_FOOTBRIDGE
56 default 160 if PARISC
57 default 80
58 help
59 On PA-RISC, the default value is 160, which should fit a 1280x1024
60 monitor.
61 Select 80 if you use a 640x480 resolution by default.
62
63config DUMMY_CONSOLE_ROWS
64 int "Initial number of console screen rows"
65 depends on DUMMY_CONSOLE && !ARCH_FOOTBRIDGE
66 default 64 if PARISC
67 default 30 if ARM
68 default 25
69 help
70 On PA-RISC, the default value is 64, which should fit a 1280x1024
71 monitor.
72 Select 25 if you use a 640x480 resolution by default.
73
74config FRAMEBUFFER_CONSOLE
75 bool "Framebuffer Console support"
76 depends on FB_CORE && !UML
77 default DRM_FBDEV_EMULATION
78 select VT_HW_CONSOLE_BINDING
79 select CRC32
80 select FONT_SUPPORT
81 help
82 Low-level framebuffer-based console driver.
83
84config FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
85 bool "Enable legacy fbcon hardware acceleration code"
86 depends on FRAMEBUFFER_CONSOLE
87 default y if PARISC
88 default n
89 help
90 This option enables the fbcon (framebuffer text-based) hardware
91 acceleration for graphics drivers which were written for the fbdev
92 graphics interface.
93
94 On modern machines, on mainstream machines (like x86-64) or when
95 using a modern Linux distribution those fbdev drivers usually aren't used.
96 So enabling this option wouldn't have any effect, which is why you want
97 to disable this option on such newer machines.
98
99 If you compile this kernel for older machines which still require the
100 fbdev drivers, you may want to say Y.
101
102 If unsure, select n.
103
104config FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
105 bool "Map the console to the primary display device"
106 depends on FRAMEBUFFER_CONSOLE
107 default n
108 help
109 If this option is selected, the framebuffer console will
110 automatically select the primary display device (if the architecture
111 supports this feature). Otherwise, the framebuffer console will
112 always select the first framebuffer driver that is loaded. The latter
113 is the default behavior.
114
115 You can always override the automatic selection of the primary device
116 by using the fbcon=map: boot option.
117
118 If unsure, select n.
119
120config FRAMEBUFFER_CONSOLE_ROTATION
121 bool "Framebuffer Console Rotation"
122 depends on FRAMEBUFFER_CONSOLE
123 help
124 Enable display rotation for the framebuffer console. This is done
125 in software and may be significantly slower than a normally oriented
126 display. Note that the rotation is done at the console level only
127 such that other users of the framebuffer will remain normally
128 oriented.
129
130config FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
131 bool "Framebuffer Console Deferred Takeover"
132 depends on FB=y && FRAMEBUFFER_CONSOLE && DUMMY_CONSOLE
133 help
134 If enabled this defers the framebuffer console taking over the
135 console from the dummy console until the first text is displayed on
136 the console. This is useful in combination with the "quiet" kernel
137 commandline option to keep the framebuffer contents initially put up
138 by the firmware in place, rather then replacing the contents with a
139 black screen as soon as fbcon loads.
140
141config STI_CONSOLE
142 bool "STI text console"
143 depends on PARISC && HAS_IOMEM
144 select FONT_SUPPORT
145 select CRC32
146 select STI_CORE
147 default y
148 help
149 The STI console is the builtin display/keyboard on HP-PARISC
150 machines. Say Y here to build support for it into your kernel.
151 The alternative is to use your primary serial port as a console.
152
153endmenu
154