error cant open display

kartiksr · 10-25-2010, 12:39 PM

Hello..

I have RHEL4 and want to install oracle.. my machine ip is the one which i am setting...

export DISPLAY=192.2.x.x:0.0

but when i do xclock i get an error... . i am not sure where exactly the error is ???

where else do i need to check...?? also i am connecting through Putty and i have enabled x11 as well..

please advice and thanks for your help..

Thanks,Kartik

Omnicronos · 10-25-2010, 01:32 PM

What is the error? Are you running an x server like xming or cygwin? Have you disabled access control?

MensaWater · 10-25-2010, 01:38 PM

PuTTY lets you setup X11 tunneling but is NOT itself an X display manager. The system you launched PuTTY from (presumably a PC) has to have something like Hummingbird Exceed ($$$) or Cygwin/X (FOSS) installed so that X windows can be displayed.

Omnicronos · 10-25-2010, 01:44 PM

Quote:

Originally Posted by MensaWater

PuTTY lets you setup X11 tunneling but is NOT itself an X display manager. The system you launched PuTTY from (presumably a PC) has to have something like Hummingbird Exceed ($$$) or Cygwin/X (FOSS) installed so that X windows can be displayed.

Great response. Just an FYI, Hummingbird is defunct. It's now called Open Text.

http://connectivity.opentext.com/pro...-products.aspx

MensaWater · 10-25-2010, 02:13 PM

Quote:

Originally Posted by Omnicronos

Just an FYI, Hummingbird is defunct. It's now called Open Text.

Thanks - I didn't know that.

Our management asked us to switch to Cygwin/X some time ago to save money. Prior to that I'd used Exceed here and at most of my UNIX/Linux jobs since 1996 and found it to be a really good product.

Funny: The browser shows "OT" for OpenText when minimized. It isn't REALLY off topic though.

vipul_jain_in · 10-25-2010, 07:14 PM

Read this to understand how to set $DISPLAY environment variable.

MensaWater · 10-26-2010, 08:35 AM

Quote:

Originally Posted by vipul_jain_in

Read this to understand how to set $DISPLAY environment variable.

Interesting - I don't see your link in your post but on quoting it I see it.
http://tldp.org/HOWTO/Remote-X-Apps-7.html

However as noted above the issue doesn't appear to be the DISPLAY variable setting but rather a lack of a X display manager on his PC.