Re: X won't start
On Thu, Jul 01, 1999 at 09:14:14PM -0700, Bob Nielsen wrote:
> I recompiled my kernel today (minor changes) and after installing
> the new version, when I try to start X, I get:
>
> ...
>
[snip]
> (**) FontPath set to
> "/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/:unscaled,/usr/X11R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100dpi/"
> (--) SVGA: PCI: Cirrus Logic GD5430 rev 45, Memory @ 0xe5000000
> (--) SVGA: chipset: clgd5430
> (--) SVGA: videoram: 512k
> (**) SVGA: Using 16 bpp, Depth 16, Color weight: 565
> (--) SVGA: Maximum allowed dot-clock: 22.778 MHz
> (--) SVGA: There is no defined dot-clock matching mode "1024x768"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> Fatal server error:
> No valid modes found.
^^^^^^^^^^^^^^^^^^^^
>
>
>
> I have no idea what caused this. /etc/X11/XF86Config hasn't changed and
> ran fine for a couple of years. I reinstalled the old kernel and it made
> no difference. I'm running potato, kernel 2.2.10 on a K6-2/350 with 64
> MB ram. It's a generic video card with a Cirrus 5430 chip.
>
> I have no idea where the 22.778 MHz maximum dot-clock line came from.
>
> Any ideas?
>
Looks like something must have changed somehow. If this was the
entirey of the output from X, it looks like you only had one mode defined in
XF86Config: "1024x768". The dot clock this mode asks (the first number in
the "Modeline" definition of the Monitor section) for is not is not available
on your videocard. Maybe you deleted the DotClocks definitions in the
Device section ? The 22.778 MHz maximum dot-clock line came from the X
server probing your card to see what clock frequencies it was capable of
generating.
So there is a mismatch between what you ask for in the "1024x768"
Mode definition and what the video card is capable of generating. When the
X server determines that the video card cannot provide the dot clock
requested in a given mode definition, it deletes that mode definition from
the list of available resolutions. If you had other (valid) mode
definitions in XF86Config, the X server would continue with the next mode
in the Display section. It looks like you don't have any other modes
defined.
Have you examined your XF86Config to see if it got hosed somehow ?
You might have to reconfigure.
Hope this helps.
Gerald
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