system-config-display

[me at mattgillen.net (Matthew Gillen)]

Daniel Feenberg wrote:
> 
> The last couple of times we have tried to install Fedora 6 we have been
> unable to make X-windows work. In all cases
> 
>    system-config-display
> 
> hangs with the (LCD) monitor displaying a message "Input not supported"
> that is self generated, not from the computer. An hour on Google
> generates the intelligence that LCD monitors aren't as fast as CRTs, and
> the defaults for X are too fast. I haven't been able to glean any
> usefull information on what to do about the problem, though. Among other
> experiments we did try:
> 
>   system-config-display --set-hsync=40
> 
> and got as far as a display of a mouse pointer, but the system was hung.
> A similar result happened with Ubuntu. These are servers, and no great
> performance is required - VESA 800x600 would be fine. The video cards
> are older PCI cards, but they appear to be correctly recognized.
> 
> We have been installing Linux on computers since the Kernel was at .92
> and never had so much trouble.

I've had a lot of trouble where LCD monitors don't report EDID info
properly.  The latest X (whatever came with FC6) or a new nvidia driver
seems to have solved that issue for me though.

You might try putting together a minimal X config by hand, and running:
 startx -- -logverbose 6
to get a bunch of data (including the probed EDID data) to the log file
(/var/log/Xorg.0.log).  Look for lines starting with 'EE' or 'WW' in the log
file.

If you want a minimal X config for FC6, I can mail you mine (you should only
need to change the video driver; there is no monitor section needed).

Matt

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.