Documentation/admin-guide/svga.rst

13 allows the use of various special video modes supported by the video BIOS. Due
38       modes available on your adapter, you can specify the menu item you want
41       modes are listed in a "first detected -- first displayed" manner. It's
52 bootup. It displays a "Press <RETURN> to see video modes available, <SPACE>
83 The mode list usually contains a few basic modes and some VESA modes.  In
84 case your chipset has been detected, some chipset-specific modes are shown as
89 The modes displayed on the menu are partially sorted: The list starts with
90 the standard modes (80x25 and 80x50) followed by "special" modes (80x28 and
91 80x43), local modes (if the local modes feature is enabled), VESA modes and
92 finally SVGA modes for the auto-detected adapter.
99 all consistent video modes supported by your BIOS will appear (plus maybe some
100 ``ghost modes``). If you are afraid this could damage your monitor, don't use
104 modes are not listed at all and the modes revealed by ``scan`` are shown before
105 all VESA modes.
121    0x0100 to 0x017f - standard BIOS modes. The ID is a BIOS video mode number
124    0x0200 to 0x08ff - VESA BIOS modes. The ID is a VESA mode ID increased by
125 	0x0100. All VESA modes should be autodetected and shown on the menu.
127    0x0900 to 0x09ff - Video7 special modes. Set by calling INT 0x10, AX=0x6f05.
131    0x0f00 to 0x0fff - special modes (they are set by various tricks -- usually
132 	by modifying one of the standard modes). Currently available:
143    0x1000 to 0x7fff - modes specified by resolution. The code has a "0xRRCC"
166 VIDEO_GFX_HACK - includes special hack for setting of graphics modes
205 2.1 (30-Jan-96) VESA modes moved to 0x200-0x3ff. Mode selection by resolution
206 		supported. Few bugs fixed. VESA modes are listed prior to
207 		modes supplied by SVGA autodetection as they are more reliable.
212 		VESA modes work now). Display end bug workaround supported.
213 		Special modes renumbered to allow adding of the "recalculate"
225 2.7 (09-Apr-96)	- Accepted all VESA modes in range 0x100 to 0x7ff, because some
227 		- Added Realtek VGA modes (thanks to Gonzalo Tornaria).
232 		- Added 480-scanline modes (especially useful for notebooks,
237 		- Better recognition of text modes during mode scan.
238 2.9 (12-May-96)	- Ignored VESA modes 0x80 - 0xff (more VESA BIOS bugs!)