GTK applications do not start

Posted by Greg on Ask Ubuntu See other posts from Ask Ubuntu or by Greg
Published on 2011-03-01T12:55:03Z Indexed on 2011/03/01 15:32 UTC
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10.04

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server

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gtk

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x

Hello,

I have a fresh install of Ubuntu 10.04 Server on nodes of a computational cluster, and I access the nodes via ssh. I configured a X server, which I start with the command startx -- -ac. The server is running fine on port :0. Then, I set the environment variable DISPLAY to :0. Now, when I run a GTK application on the node, it fails with the following error:

Error: Unable to initialize gtk, is DISPLAY set properly?

Now, my question is, is there any runtime library that I need for running GTK applications on top of a X server? I'm probably missing something obvious here, but I can't tell what :P

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