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Re: Intel Framebuffer doesn't work on a notebook



On Mon, 29 Oct 2007 12:20:02 +0100, Dieter Faulbaum <Dieter.Faulbaum@bessy.de> wrote:

Hi,

I have a Notebook with an Intel VGA-Controller and the
framebuffer will not work. Any idea what could be wrong?
What does the line mean 'Video mode must be programmed at boot time'?

It means that you need to set video mode at boot time

The command line (in grub) is:
root=/dev/hda3 ro video=intelfb:mode=1024x768-32@60 resume=/dev/hda6

In that line, I think, you need to add extra parameter "vga=". I'm using "vga=791", which means 1024x768, 16bit. Set it in /boot/grub/menu.lst. My looks like this:

kernel          /boot/vmlinuz-2.6.18-4-686 root=/dev/hda6 ro vga=791



Here is a tables, which shows available frame buffer vga modes

Color depth      | 640x480  800x600  1024x768 1280x1024
-----------------+-------------------------------------
256        (8bit)|  769      771       773      775
32000     (15bit)|  784      787       790      793
65000     (16bit)|  785      788       791      794
16.7 Mill.(24bit)|  786      789       792      795

--
Pozdrawiam,
Damian Ryszka
rychu(at)sileman(dot)net(dot)pl



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