Applications won't run with explicit display parameter when GDM is used.

["Philippe Anctil" <z77y16 hotmail com>]

Hello list,

I've run into a strange problem and I'm hoping to find a solution in this 
list. My problem goes like this. When I start an X session with GDM, I 
cannot run applications with the display argument. For example:

xclock -display localhost:0

Produces:

Error: Can't open display: localhost:0

This does not happen with kdm and xdm. The only argument that will work is 
either no -display arg or ":0" as it's value. I haven't encountered this 
issue in previous RedHat releases since v7.0. It is in Fedora I've found it.

Though it may appear to be a benign issue, it is not for me. I am supporting 
an application for which is messing the display value. I cannot override it 
to workaround the problem. Because of that, it won't open in a gdm session.

Does anyone have any idea how can I resolve this? I quickly went through the 
doc and my config files but found nothing.

Thanks for your time!

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