VGA display mode codes

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http://www.knoppix.net/forum/viewtopic.php?p=36777

Knoppix defaults to 1024x768 and I only have 800x600. This was OK until the root partition glitched in a file-system check and I could not read the bottom of the screen to find out what was happpening, or enter any commands (except by guesswork). I fixed this by changing the VGA code in 'lilo.conf' from 791 to either NORMAL or 0x0103 (800x600x256). Both produced the same display, 80x25 on the central 50% or so of the screen, but without the penguin at the top left.

However, what I would like to do, if possible, is have the neat display that goes with VGA=791, but in an 800x600 space. Is there a VGA display code that will do this?

VGA display mode codes

> > Is there a VGA display code that will do 800x600x16bit?

> Yes, there is you want 788.

Yay! Works! Thank you very much!

Autodetect video hardware at boot

http://www.linuxquestions.org/questions/susenovell-60/autodetect-video-hardware-at-boot-519263/

Here are two charts of vga values you can try to see if it gives you some kind of graphics on boot.

Colors ( depth)	640x480	800x600	1024x768	1280x1024	1600x1200
256 ( 8 bit)	769	771	773	775	796
32,768 (15 bit)	784	787	790	793	797
65,536 (16 bit)	785	788	791	794	798
16.8M (24 bit)	786	789	792	795	799

	640x480	800x600	1024x768	1280x1024
256	0x301	0x303	0x305	0x307
32k	0x310	0x313	0x316	0x319
64k	0x311	0x314	0x317	0x31A
16M	0x312	0x315	0x318	0x31B

documented on: 01-14-07, bigrigdriver