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Date: | Mon, 4 Dec 2006 19:24:37 +0100 |
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----- Original message from Alex Kruchkoff on Mon Dec 4 00:52:11 2006 -----
>
> Ioannis Vranos wrote, On 04/12/06 10:16:
> > Bly, MJ (Martin) wrote:
> >> I used to use the kernel boot option vga=791 to get a larger row x
> >> column count on the consoles. I tried looking for other codes the
> >> get different results but at the time, my efforts on google proved
> >> fruitless.
> >> Of course your graphics chip has to support the required resolutions.
> >
> >
> > In what file are kernel boot options?
> >
> Ioannis, you can put it in /boot/grub/grub.conf like
>
> kernel /vmlinuz-2.6.9-42.0.3.EL ro root=LABEL=/1 vga=792
>
> If you use grub.
> Also while booting the grub you can press any key, navigate to the line
> related to
> linux, press "e" key; navigate to the kernel line; press "e" again and
> type vga=792 [it depends on your video adapter]
>
> 792 means use the video card in 1024x768 graphic mode with [not sure 24
> bits per pixel or 32, google is you friend]
> if you don't like the graphic mode [you would be able to see the linux
> penguin similar to Sun logo] you can try boot in the text mode.
> please use the parameter
>
> vga=ask
>
> When you get the prompt from the video card type "scan" and you will see
> possible "resolutions for your card [I think it's standard VESA video modes]
> when you happy with resolution write this mode into /boot/grub/grub.conf
> as above.
>
> Thanks,
> Alex
>
I found that in an old "help file" of mine :
Colours 640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200 1400x1050
--------+--------------------------------------------------------------
4 bits | ? ? 0x302 ? ? ? ?
8 bits | 0x300 0x301 0x303 0x305 0x161 0x307 0x31C
15 bits | ? 0x310 0x313 0x316 0x162 0x319 0x31D
16 bits | ? 0x311 0x314 0x317 0x163 0x31A 0x31E 0x314
24 bits | ? 0x312 0x315 0x318 ? 0x31B 0x31F
32 bits | ? ? ? ? 0x164 ?
Colours 640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200 1400x1050
--------+--------------------------------------------------------------
4 bits | ? ? 770 ? ? ? ?
8 bits | 768 769 771 773 353 775 796
15 bits | ? 784 787 790 354 793 797
16 bits | ? 785 788 791 355 794 798 788
24 bits | ? 786 789 792 ? 795 799
32 bits | ? ? ? ? 356 ?
Key: 8 bits = 256 colours, 15 bits = 32,768 colours, 16 bits = 65,536
colours, 24 bits = 16.8 million colours, 32 bits - same as 24 bits,
but the extra 8 bits can be used for other things, and fits perfectly
with a 32 bit PCI/VLB/EISA bus.
--
Best regards,
Robert FRANCHISSEUR
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