Vesa mode number for 1680x1050 console

darkscreamer

What's the mode number to append to kernel line to have framebuffer console displayed at 1680x1050?

szczerb · Posted: Fri Oct 31, 2008 12:27 pm Post subject:

Try using uvesafb instead - it takes the resolution as a parameter, not the mode.

darkscreamer · Posted: Fri Oct 31, 2008 12:48 pm Post subject:

I tried it like a month ago, but v86d segfaulted. What version of v86d and klibc are you using?

szczerb · Posted: Fri Oct 31, 2008 1:04 pm Post subject:

I'm not using v86d. I have intel 965 and I'm using vesafb now with parameters "vga=865 video=vesafb:mtrr:3,ywrap". But this is for 1280x800. Try finding your mode with google. Or just try using the uvesafb - without v86d as this is needed only for older chipsets.

EDIT: I have klibc-1.5.8 but I don't see how is it relevant to fb.

darkscreamer · Posted: Fri Oct 31, 2008 1:46 pm Post subject:

According to this guide i need both klibc and v86d. I followed these instructions and it works, but frame buffer console is still shown at low-res for the first few seconds of the boot process.

Schwinni · Posted: Fri Oct 31, 2008 1:50 pm Post subject:

Have a look which resolutions are supported:

szczerb · Posted: Fri Oct 31, 2008 1:59 pm Post subject:

I used to use uvesafb on my previous desktop without the v86d. If you use v86d you'll always get your desired resolution after the v86d starts. That's why I suggest you try not using it first.

That's what I get:

darkscreamer · Posted: Fri Oct 31, 2008 2:04 pm Post subject:

I think that the last number represents vertical refresh frequency.

Schwinni · Posted: Fri Oct 31, 2008 2:11 pm Post subject:

If that is the only line, you have to stay with 1280x800 at the console.
Which graphics chip do you have?

szczerb · Posted: Fri Oct 31, 2008 2:26 pm Post subject:

I have intel GM965 (as stated above) and I can easily use 800x600 and 640x480 so why aren't they listed?

By the way darkscreamer what graphics chipset do you have?

darkscreamer · Posted: Fri Oct 31, 2008 4:52 pm Post subject:

I have a nvidia 8800GT. I've heard that nvidia fb causes problems to the closed source accelerated driver, that's why i want to use vesa/uvesa.

szczerb · Posted: Fri Oct 31, 2008 5:49 pm Post subject:

Great. So would you please finally check if uvesafb works for you (without the v86d)?

darkscreamer · Posted: Fri Oct 31, 2008 6:20 pm Post subject:

How to? Should i unmerge v86d?

Here's compatible modes list:

szczerb · Posted: Fri Oct 31, 2008 6:32 pm Post subject:

I guess you should undo the 6th step of the mentioned guide and try booting the new kernel with video=uvesafb:1680x1050-32,mtrr:3,ywrap

darkscreamer · Posted: Fri Oct 31, 2008 8:45 pm Post subject:

szczerb · Posted: Fri Oct 31, 2008 10:45 pm Post subject:

Well, that makes me a happy intel user and you are doomed ;]

Although I thought that any decent recent card would work like that...

SeaTiger · Posted: Sun Nov 02, 2008 8:26 am Post subject:

Use following:

darkscreamer · Posted: Tue Nov 04, 2008 2:07 pm Post subject:

Vesa supports 1680x1050. It's 369 (hex) / 873 (decimal).

szczerb · Posted: Tue Nov 04, 2008 3:12 pm Post subject:

Great

Did you by any chance stumble upon a web page with a nice table of vesa modes for modern (wide) resolutions? If so please paste the link, because it's a very common problem.