It can't open the display on your local windows machine (which needs
an x server).  The easist way I've found is to install X.org through
cygwin.  start the xserver using "xwin -multiwindow &" and you'll get
the X logo in the task tray.  when you connect via putty, make sure
that you check "Enable X11 forwarding" in Connection>SSH>Tunnels.  you
can check to see if the display was connected properly by running echo
$DISPLAY to see if the display variable has been set.

I've got this working on several different distributions and has
always worked well.  let me know if i left anything out.

Jon
<><


On Mon, 24 Jan 2005 10:52:55 -0700, todd hewett
<todd.hewett@regalhost.com> wrote:
> So I am still trying to get X over SSH working.
> 
> When I run command:
> [root@ns1 root]# xeyes
> Error: Can't open display:
> 
> I wonder if this is because  where I have the X display location set up in
> putty.  Localhost:0
> 
> If I run xinit over my SSH connection to server I get:
> 
> (==) Log file: "/var/log/XFree86.0.log", Time: Mon Jan 24 10:50:42 2005
> (==) Using config file: "/etc/X11/XF86Config-4"
> (EE) xf86OpenSerial: Cannot open device /dev/psaux
>         No such device.
> (EE) Mouse0: cannot open input device
> (EE) PreInit failed for input device "Mouse0"
> No core pointer
> 
> Fatal server error:
> failed to initialize core devices
> 
> If you encounter a server crash, please report the problem by filing a bug
> report in the XFree86.org bugzilla at http://bugs.xfree86.org and/or Red Hat
> bugzilla at http://bugzilla.redhat.com/bugzilla.  When filing your report,
> it
> is very important that you explain your problem in as much detail as
> possible,
> and include a complete description on how to reproduce the problem.  After
> submitting the bug report, attach the following files as uncompressed
> individual file attachments using the bugzilla file attachment feature:
>         - X server log file: /var/log/XFree86.0.log
>         - Kernel log file: /var/log/messages
> 
> XIO:  fatal IO error 104 (Connection reset by peer) on X server ":0.0"
>       after 0 requests (0 known processed) with 0 events remaining.
> 
> Thanks for your insite
> 
> -----Original Message-----
> From: plug-discuss-admin@lists.plug.phoenix.az.us
> [mailto:plug-discuss-admin@lists.plug.phoenix.az.us] On Behalf Of Kevin
> Brown
> Sent: Sunday, October 31, 2004 2:12 AM
> To: plug-discuss@lists.plug.phoenix.az.us
> Subject: Re: x over putty x forwarding over ssh and the like.
> 
> >> Anyone have any experience running x over SSH?
> >>
> >> I have made it this far:
> >>
> >>
> >> -  Make sure the X server is configured and running -  Open your SSH
> >> session (with X11 forwarding enabled) -  type xterm, or your window
> manager
> >>  command, or the name of any other X program
> >>
> >> Here is the rub that I have.
> >>
> >> My Linux box is sitting in a rack without a mouse or keyboard attached to
> 
> >> it.
> >>
> >> So when I startx it fails because it is looking for local mouse and
> >> keyboard that are not attached to it.
> >>
> >>
> >> Is there a good (easy) way around this?
> 
> > I use vncserver. I ssh into my linux machine from windows via putty. Start
> 
> > the server with `vncserver :1 -geometry 1024x768`. I can then tunnel my
> vnc
> > session(?) through putty.
> >
> > I haven't tried doing this from one linux machine to another.
> 
> I have experience doing X over SSH and never bothered with doing startx.  I
> just
> fired off whatever app I needed or even just fired up my WM directly (e.g.
> icewm
> &).  You should only be doing startx when you are logged directly into the
> machine at the local keyboard/mouse...
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-- 
Jon
<><
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