Re: What part of X causes major display problems?

["Seneca Cunningham" <seneca@slemish.com>]

Kent West [westk@acu.edu] wrote:
> Seneca Cunningham wrote:
>
> >I have just upgraded XFree86 from 3.3.6 to 4.1.0. After completing the
> >upgrade, I changed from tty1 to X's display and saw the image on the
screen
> >consisted of vertical lines running down my display, the top of the lines
> >were 1 pixel in width and the bottom width was 3 pixels, with 2 wide
black
> >horizontal lines running across it. Only the highlighted edges of the
login
> >box appeared. No mouse cursor or text is visible on the screen. This
> >continued after rebooting, but the colours of the lines sometimes changes
> >after rebooting.
> >
> Almost certainly a problem with the video settings in XF86Config[-4].

And that's where I have been concentrating my efforts.

> You can also try running "xf86cfg" or "xf86cfg -textmode" (or is it
> "--textmode"?) for a non-GUI setup application.

It's "xf86cfg -textmode", and I still ended up with the pixel-lines screen.


D-Man [dman@dman.ddts.net]; on behalf of; dman [dsh8290@rit.edu] wrote:
> Try "X -configure" instead.  X4 has auto-configuration built-in to it.
> It didn't work for my card, but it gave me a skeleton config to fill
> in correctly (with my values from X3).

I got a plain black screen with some random white pixels.

It's somewhat interesting to notice a difference between the logfiles when
testing the configurations from each method. In the logfile from testing the
"X -configure" is...

	(==) CHIPS(0): Min pixel clock is  11.000MHz
	(--) CHIPS(0): Max pixel clock is  56.000MHz

... and from the "xf86cfg -textmode" method...

	(==) CHIPS(0): Min pixel clock is   5.500MHz
	(--) CHIPS(0): Max pixel clock is  28.000MHz

The lines preceded by (==) are default values and the (--) lines are probed
values. This is interesting, I would have thought that the values would be
the same. In my XF86Config there is a line

	Clocks 28.32 28.32 28.32 28.32

but it didn't alter anything in any of my XF86Config-4 attempts (presumably
it isn't needed anymore with the driver used, and is ignored).

For each of the two configuration methods, the results when tested remained
the same, even after changing the contents.

Thanks for any help,

Seneca
seneca@slemish.com