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SubjectRe: Framebuffer detection problems, 2.4.9
On Tue, Oct 09, 2001 at 04:38:15PM -0700, Michael Peddemors wrote:
> I seldom dive into the graphical end of things myself, but this one has
> had me stumped for the last week and a half..
>
> I have a working ThinClient setup, that loads it's kernel via tftpd and
> mknbi, with the 'vga=ask' option..
> On one machine, with a Cirrus Logic card, (Cirrus Framebuffer support
> compiled in) things work fine, but on all my other boxes with VESA
> complaint cards, I cannot get it to use the VESA framebuffer, or
> seemingly to detect the VESA devices with this kernel, although we can
> on detect and pass modes using LILO on similar kernels.
>
> I have of course read as many how-to's as possible, and the svga.txt
> file seems to indicate that if I use the vga=ask option, and then run
> scan it should show all VESA modes as well, (It does detect it as a VESA
> VGA card), but the /fb/vesafb.txt seems to indicate that it won't show
> the modes..

It doesn't show the modes. You have to enter one yourself, or tell it
to LILO. /fb/vesafb.txt has more information about the varying modes
availible. Read the whole file if you haven't already. Be sure to add
0x200 as documented.

> I see that in video.S CONFIG_VIDEO_VESA is harddefined, but I cannot
> quite understand why I cannot enter a VESA mode that works..
> I tried 313, 0313, and the decimal equivs 787 and 0787 but it keeps
> returning that as an invalid mode.. This occurs on several machines,
> all with recent video cards, that are VESA compliant, and listed as
> compatible.. the motherboards all use recent BIOS's but still no joy..
>
> I will accept help here, or can someone point me to a good mailing list
> to work this out?
>
> --
> "Catch the Magic of Linux..."
> --------------------------------------------------------
> Michael Peddemors - Senior Consultant
> LinuxAdministration - Internet Services
> NetworkServices - Programming - Security
> Wizard IT Services http://www.wizard.ca
> Linux Support Specialist - http://www.linuxmagic.com
> --------------------------------------------------------
> (604)589-0037 Beautiful British Columbia, Canada
>
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--
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