Difference: X11OnLaptops (6 vs. 7)

Revision 72021-07-10 - WilliamSeligman

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META TOPICPARENT name="WilliamSeligman"

Setting up X11 and OpenGL on your laptop/desktop

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  X11 is the GUI-display protocol used by UNIX systems. If you're logging into one of the Nevis systems with your own computer (laptop or desktop) using a plain-text Terminal program, you will almost certainly need X11 to run applications such as ROOT.
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If you try to run a program and you get messages of the form Can't open display, then it probably means that you did not forward your X11 connection as described in the following steps. To check this, on the remote system examine the value of the variable $DISPLAY:
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If you try to run a program and you don't see the graphics display you expected, or you get messages of the form Can't open display, then it probably means that you did not forward your X11 connection as described in the following steps. To check this, on the remote system examine the value of the variable $DISPLAY:
 
     echo $DISPLAY
 
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