From: Matan Ziv-Av (matan@svgalib.org)
Date: Thu 29 Nov 2001 - 14:51:51 IST
On Thu, 29 Nov 2001, Klaus Reimer wrote:
> These modes show garbage on the screen, colorful snow. I think that's what
> you call "Out of sync"
>
> Most of these modes are rarely used, but Mode 5 is important to me. Even with
> forcing the "VGA" chipset this mode is not working. The same garbage on the
> screen. It looks to me as it has something to do with the number of colors.
> 320x200 with 16 Bit or higher is working properly, but 256 colors and lower
> are not working.
>
> What can I do to get these low video modes (or at least Mode 5) working?
This is probably the result of using kernel fb driver. The vga modes
only program the vga portion of the controller, so if it starts in svga
mode, the results are unpredictable.
The option vesatext might help, as it tries to set the controller to a
standard vga mode, before setting the new mode.
--
Matan Ziv-Av. matan@svgalib.org
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