One F7 machine not finding itself

[David Timms]

Beartooth wrote:
> Suddenly, on a machine which has been running F7 since F7 came out, I can 
> no longer log in. 
> 
> Instead of the usual login screen, I get a gray window without the usual 
> bar on top, which first says it is scanning the local network, and then 
> that "No serving hosts were found."
> 
> If I type in 127.0.0.1, or localhost, or localdomain, or its 192.168.x.y, 
> or  lo, or localhost.localdomain, or localhost at localdomain, and try to 
> add it, I get a new box with a "do not enter" symbol and the title "Did 
> not receive response from server," below which is a paragraph saying it 
> didn't get it in 3 seconds, and adding "Perhaps the host is not turned 
> on, or is not willing to support a login session right now. Please try 
> again later." Or if not that box, one (particularly for lo) suggesting 
> that I might have mistyped it.
> 
> If I ssh into it from another machine behind the same router, however, it 
> accepts that; and /sbin/ifconfig confirms its own 192.168.x.y, its proper 
> MACs (one for eth0 and one for eth1), and the 192.168.x.y for the machine 
> I'm working from.
> 
> If I look at "cat /etc/X11/xorg.conf" I see nothing obviously strange 
> except that there are an awful lot of modes (twelve of them) in Section 
> "Screen" -- but the first one, 1280x1024, is correct for my monitor, 
> which another section correctly identifies an an lcd.
> 
> If I become root and ssh into the problem machine, it lets me; but when I 
> try telling it startx, it claims X is already running.
> 
> If, as it suggests, I remove /tmp/.X0-lock, and try startx again, I get 
> several screenfuls of messages, which I can't even scroll back to -- and 
> startx|less does the same!
> 
> What have I fouled up so royally this time, and what (if possible, short 
> of reinstalling F7) can I do about it? (I know perfectly well how 
> helpless I am without a GUI; it doesn't have to rub my nose in it.)
Shrug.
mv /etc/X11/xorg.conf to backup.
setup
x window setup
perhaps that will get you a fresh as detected config.

What has changed since it last worked ?
different screen ?
screen plugged in a different video output ?
fedora updates ?

DaveT.