[mdk-re] Re: [mdk-re] Re: [mdk-re] GRUB - параметы

[Igor Fadin]

On Fri, 12 Oct 2001 09:54:37 +0400
"Evgeniy Kobzev" <evgenik на diamonds.ru> wrote:


EK> "640x480 in 16 bits (FrameBuffer only)" => 785,
EK> "800x600 in 16 bits (FrameBuffer only)" => 788,
EK> "1024x768 in 16 bits (FrameBuffer only)" => 791,
EK> "1280x1024 in 16 bits (FrameBuffer only)" => 794,
EK> );

EK> Я про последние 4 строчки. где про ЭТО можно почитать?



 /usr/src/linux/Documentation/fb/vesafb.txt:



 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 descired
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.


				Игорь


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