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From Mentor Graphics support:

Problem
ICX or Tau: ‘Error: Can’t open display:’

Problem trying to run ICX on an X server

When trying to invoke ICX or Tau you get a “can’t open display” error message.

Solution
To resolve the issue you must enable TCP connections to the X server.

As root, edit /etc/X11/gdm/gdm.conf and change the line that reads ‘#DisallowTCP=true’ to ‘DisallowTCP=false’ (note the comment is also removed). Reboot the system to make the change take effect.

When DisallowTCP is true (this is the default) the X server is started with the ‘-nolisten tcp’ option, which prevents TCP connections to the X server.

This entry was posted by maryh on March 20, 2009 at 9:57 am under Installation, Mentor, Software. Both comments and pings are currently closed.