Messages in this thread |  | | | Date | Mon, 20 Jul 1998 00:06:33 +0200 (MEST) | | From | Clifford Wolf <> | | Subject | Re: Cant' switch to VESA VGA (I wanna see the grafik logo!) |
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On Sun, 19 Jul 1998, Martin Mares wrote:
> > i'm running Kernel 2.1.109 + 109ac2 + devfs on my test box here. The > > framebuffer device is a S3 Virge. I tried allready a few modes (600x640 > > and 800x600 with 8, 15 and 16 bit colordepth). I calculated the numbers > > for "vga=" as follows: > > > > hex2dec( <number from linux/Documentation/fb/vesafb.txt> + 0x200 ); > > > > So the decimal numbers are e.g. 788 (0x314) for 800x600 with 16 bit colors > > or 769 (0x301) for 640x480 with 8 bit colors. I get all the time a > > message like "you passed an undefined mode." - but the debuging message > > of "vga=ask" tells me the it dedected my card as a VESA VGA Card (what is > > right). > > Are you sure your VGA BIOS supports VESA modes?
Well, I have 2 VESA Text modes in the list if tell the kernel "vga=ask" and the kernel tells me that i have a vesa card in the headline of "vga=ask" (but i don't know if this means that it is a VESA 2.0 card which supports a linear frame buffer). The code after the "check_vesa" mark in linux/arch/i386/boot/video.S just returns if the mode is ok or not - what's about a more verbose message? ("badmdt" does not tell anything except that it does not work. :-)
But I guess that the S3 Virge card is VESA 2 compatible (it's not a very old card). I can't find any manuals - so I'm not absolute sure about this. How can I find out if I can use my card or not?
- clifford
PS: Why is all this stuff written in pure assembler? It's so hard to read. :-)
-- -- -- -- -- -- -- -- -- -- -- -- -- Clifford Wolf magnet - Internet at Work IRC: efnet / clifford Director of System Development http://www.clifford.at/ e-mail: c.wolf@magnet.at email: god@clifford.at
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