Kconfig 5.7 KB

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  1. #
  2. # Video configuration
  3. #
  4. menu "Console display driver support"
  5. config VGA_CONSOLE
  6. bool "VGA text console" if EXPERT || !X86
  7. depends on !4xx && !PPC_8xx && !SPARC && !M68K && !PARISC && !FRV && \
  8. !SUPERH && !BLACKFIN && !AVR32 && !MN10300 && !CRIS && \
  9. (!ARM || ARCH_FOOTBRIDGE || ARCH_INTEGRATOR || ARCH_NETWINDER) && \
  10. !ARM64 && !ARC && !MICROBLAZE && !OPENRISC
  11. default y
  12. help
  13. Saying Y here will allow you to use Linux in text mode through a
  14. display that complies with the generic VGA standard. Virtually
  15. everyone wants that.
  16. The program SVGATextMode can be used to utilize SVGA video cards to
  17. their full potential in text mode. Download it from
  18. <ftp://ibiblio.org/pub/Linux/utils/console/>.
  19. Say Y.
  20. config VGACON_SOFT_SCROLLBACK
  21. bool "Enable Scrollback Buffer in System RAM"
  22. depends on VGA_CONSOLE
  23. default n
  24. help
  25. The scrollback buffer of the standard VGA console is located in
  26. the VGA RAM. The size of this RAM is fixed and is quite small.
  27. If you require a larger scrollback buffer, this can be placed in
  28. System RAM which is dynamically allocated during initialization.
  29. Placing the scrollback buffer in System RAM will slightly slow
  30. down the console.
  31. If you want this feature, say 'Y' here and enter the amount of
  32. RAM to allocate for this buffer. If unsure, say 'N'.
  33. config VGACON_SOFT_SCROLLBACK_SIZE
  34. int "Scrollback Buffer Size (in KB)"
  35. depends on VGACON_SOFT_SCROLLBACK
  36. range 1 1024
  37. default "64"
  38. help
  39. Enter the amount of System RAM to allocate for scrollback
  40. buffers of VGA consoles. Each 64KB will give you approximately
  41. 16 80x25 screenfuls of scrollback buffer.
  42. config VGACON_SOFT_SCROLLBACK_PERSISTENT_ENABLE_BY_DEFAULT
  43. bool "Persistent Scrollback History for each console by default"
  44. depends on VGACON_SOFT_SCROLLBACK
  45. default n
  46. help
  47. Say Y here if the scrollback history should persist by default when
  48. switching between consoles. Otherwise, the scrollback history will be
  49. flushed each time the console is switched. This feature can also be
  50. enabled using the boot command line parameter
  51. 'vgacon.scrollback_persistent=1'.
  52. This feature might break your tool of choice to flush the scrollback
  53. buffer, e.g. clear(1) will work fine but Debian's clear_console(1)
  54. will be broken, which might cause security issues.
  55. You can use the escape sequence \e[3J instead if this feature is
  56. activated.
  57. Note that a buffer of VGACON_SOFT_SCROLLBACK_SIZE is taken for each
  58. created tty device.
  59. So if you use a RAM-constrained system, say N here.
  60. config MDA_CONSOLE
  61. depends on !M68K && !PARISC && ISA
  62. tristate "MDA text console (dual-headed)"
  63. ---help---
  64. Say Y here if you have an old MDA or monochrome Hercules graphics
  65. adapter in your system acting as a second head ( = video card). You
  66. will then be able to use two monitors with your Linux system. Do not
  67. say Y here if your MDA card is the primary card in your system; the
  68. normal VGA driver will handle it.
  69. To compile this driver as a module, choose M here: the
  70. module will be called mdacon.
  71. If unsure, say N.
  72. config SGI_NEWPORT_CONSOLE
  73. tristate "SGI Newport Console support"
  74. depends on SGI_IP22
  75. select FONT_SUPPORT
  76. help
  77. Say Y here if you want the console on the Newport aka XL graphics
  78. card of your Indy. Most people say Y here.
  79. config DUMMY_CONSOLE
  80. bool
  81. depends on VGA_CONSOLE!=y || SGI_NEWPORT_CONSOLE!=y
  82. default y
  83. config DUMMY_CONSOLE_COLUMNS
  84. int "Initial number of console screen columns"
  85. depends on DUMMY_CONSOLE && !ARM
  86. default 160 if PARISC
  87. default 80
  88. help
  89. On PA-RISC, the default value is 160, which should fit a 1280x1024
  90. monitor.
  91. Select 80 if you use a 640x480 resolution by default.
  92. config DUMMY_CONSOLE_ROWS
  93. int "Initial number of console screen rows"
  94. depends on DUMMY_CONSOLE && !ARM
  95. default 64 if PARISC
  96. default 25
  97. help
  98. On PA-RISC, the default value is 64, which should fit a 1280x1024
  99. monitor.
  100. Select 25 if you use a 640x480 resolution by default.
  101. config FRAMEBUFFER_CONSOLE
  102. bool "Framebuffer Console support"
  103. depends on FB && !UML
  104. select VT_HW_CONSOLE_BINDING
  105. select CRC32
  106. select FONT_SUPPORT
  107. help
  108. Low-level framebuffer-based console driver.
  109. config FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
  110. bool "Map the console to the primary display device"
  111. depends on FRAMEBUFFER_CONSOLE
  112. default n
  113. ---help---
  114. If this option is selected, the framebuffer console will
  115. automatically select the primary display device (if the architecture
  116. supports this feature). Otherwise, the framebuffer console will
  117. always select the first framebuffer driver that is loaded. The latter
  118. is the default behavior.
  119. You can always override the automatic selection of the primary device
  120. by using the fbcon=map: boot option.
  121. If unsure, select n.
  122. config FRAMEBUFFER_CONSOLE_ROTATION
  123. bool "Framebuffer Console Rotation"
  124. depends on FRAMEBUFFER_CONSOLE
  125. help
  126. Enable display rotation for the framebuffer console. This is done
  127. in software and may be significantly slower than a normally oriented
  128. display. Note that the rotation is done at the console level only
  129. such that other users of the framebuffer will remain normally
  130. oriented.
  131. config STI_CONSOLE
  132. bool "STI text console"
  133. depends on PARISC
  134. select FONT_SUPPORT
  135. default y
  136. help
  137. The STI console is the builtin display/keyboard on HP-PARISC
  138. machines. Say Y here to build support for it into your kernel.
  139. The alternative is to use your primary serial port as a console.
  140. endmenu