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 发表于 2005-2-24 12:20:41
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| [code:1]How to use it? ==============
 
 Switching modes is done using the vga=... boot parameter.  Read
 Documentation/svga.txt for details.
 
 You should compile in both vgacon (for text mode) and vesafb (for
 graphics mode). Which of them takes over the console depends on
 whenever the specified mode is text or graphics.
 
 The graphic modes are NOT in the list which you get if you boot with
 vga=ask and hit return. The mode you wish to use is derived from the
 VESA mode number. Here are those VESA mode numbers:
 
 | 640x480  800x600  1024x768 1280x1024
 ----+-------------------------------------
 256 |  0x101    0x103    0x105    0x107
 32k |  0x110    0x113    0x116    0x119
 64k |  0x111    0x114    0x117    0x11A
 16M |  0x112    0x115    0x118    0x11B
 
 The video mode number of the Linux kernel is the VESA mode number plus
 0x200.
 
 Linux_kernel_mode_number = VESA_mode_number + 0x200
 
 So the table for the Kernel mode numbers are:
 
 | 640x480  800x600  1024x768 1280x1024
 ----+-------------------------------------
 256 |  0x301    0x303    0x305    0x307
 32k |  0x310    0x313    0x316    0x319
 64k |  0x311    0x314    0x317    0x31A
 16M |  0x312    0x315    0x318    0x31B
 
 To enable one of those modes you have to specify "vga=ask" in the
 lilo.conf file and rerun LILO. Then you can type in the desired
 mode at the "vga=ask" prompt. For example if you like to use
 1024x768x256 colors you have to say "305" at this prompt.
 
 If this does not work, this might be because your BIOS does not support
 linear framebuffers or because it does not support this mode at all.
 Even if your board does, it might be the BIOS which does not.  VESA BIOS
 Extensions v2.0 are required, 1.2 is NOT sufficient.  You will get a
 "bad mode number" message if something goes wrong.
 
 1. Note: LILO cannot handle hex, for booting directly with
 "vga=mode-number" you have to transform the numbers to decimal.
 2. Note: Some newer versions of LILO appear to work with those hex values,
 if you set the 0x in front of the numbers.
 [/code:1]
 vesa3.0用
 video=vesafb:1024x768-32@75
 类似的 video=vesafb:分辨率-色深@刷新率
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