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Old 3rd March 2016
jjstorm jjstorm is offline
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I installed firefox but when I run it, I am getting a no display specified error. Running 5.8 stable. X is working well. How do I specify display?
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Old 3rd March 2016
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jggimi jggimi is offline
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If X is working well, when you issue $ echo $DISPLAY you should get a response containing :0 or a similar X display device setting. If you do not have a value for the environment variable $DISPLAY, you may be trying to start Firefox from a console terminal (ttyC*) rather than an X terminal window from within X.

Without more information, of course, all I can do is guess.
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Old 3rd March 2016
jjstorm jjstorm is offline
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Figured it out from your response. I was trying to start it from shell, when I needed to be starting it from x.

thanks
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Old 4th March 2016
e1-531g e1-531g is offline
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I have started GUI apps from shell also several times.
You can do something like that:
Code:
DISPLAY=":0" /usr/local/bin/firefox
Of course X display can have different number or yours X authentication&authorization can block access.
Actually firefox has also command line argument for specifying X display:
Code:
firefox --display :0
You can disable authorization by:
Code:
xhost +
but do this only if you are sure that no one will connect through network (block incoming connections on firewall/pf) and there are no users who should have no access to X. It has security risk.

Last edited by e1-531g; 4th March 2016 at 01:08 AM.
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