Friday, March 4, 2011

Gtk-warnning ** : can not open display or ** WARNING ** can not open display

The problem is with two environment variables DISPLAY and XAUTHORITY

$ su -

password:

# export DISPLAY=0:0

# export XAUTHORITY=/home/username/.Xauthority

to verify, run a graphical program from terminal. e.g.;

# xeyes
 

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