grub video mode

mr-simon · Posted: Sat Feb 15, 2003 2:38 am Post subject: grub video mode

This is probably a dumb question... :oops:

I just finished the first part of installing Gentoo on my new laptop. I tried to specify a VGA mode of vga=0798 as a boot parameter, which I thought was supposed to be 1600x1200x16 -- but it didn't like it.

When typing it again, I accidentally put in 0978 instead of 0798. It seemed happy with that, and came up in a nice, high resolution.

However, I've looked all over the net and can't find a list. How do I determine what video mode my console is actually running in, because I'm not sure.

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krt · Posted: Sat Feb 15, 2003 7:01 am Post subject:

You might want to read a few things:

/usr/src/linux/Documention/fb/vesafb.txt (and other documents in this director)

http://www.charmed.com/support/kernel/docs/svga.txt

and a list of vesa modes:
http://www.geocities.com/SiliconValley/Park/8933/vesa.html
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mr-simon · Posted: Sun Feb 16, 2003 1:06 pm Post subject:

Yeah, I saw all those. The thing is, what I'm experiencing dosen't seem to agree.

I'm supposed to be able to run in 1600x1200x16, but accodring to
[quote=http://www.geocities.com/SiliconValley/Park/8933/vesa.html]0x11D 1600x1200x16[/quote] - although the kernel docs say I should add 0x0200 to that, to get the figure I pass.

- Which is 0x31D, or 0797, which my machine didn't like.
- It did like 978, which I discovered by a typo... Bit I can't find that on the list. It's 3D2, which should be VESA mode number 1D2, and I can't find a list of modes that goes up that high.[/quote]
_________________
"Pokey, are you drunk on love?"
"Yes. Also whiskey. But mostly love... and whiskey."