1 # SPDX-License-Identifier: GPL-2.0-only 2 # 3 # Video configuration 4 # 5 6 menu "Console display driver support" 7 8 config 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 26 config 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 41 config 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 49 config DUMMY_CONSOLE 50 bool 51 default y 52 53 config 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 63 config 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 74 config 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 84 config 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. 103 104 config 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. 119 120 config 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. 129 130 config 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. 140 141 config 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. 152 153 endmenu 154 155