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I have a problem , i can't open synaptic >:(

root@dopeboy:~# synaptic
No protocol specified
** (synaptic:6940): WARNING **: Could not open X display
No protocol specified
(synaptic:6940): Gtk-WARNING **: cannot open display: :1

I have try to Re-install it but is not working, any idea how to fix?! VPS Ubuntu 14.04 LTS.

David Foerster
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Jãşhť'Sşeriĕ
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  • Your copy/paste looks somewhat inexact but from what we can glean, it's looking like it wants to open a display named :1. You probably don't have a display named like that, or your X session is running on a different display, and you don't have privileges on :1. Try with DISPLAY=:0.0 synaptic (assuming you are on display 0) and/or tell us more about your displays and X sessions. – tripleee Nov 30 '15 at 10:10
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    root@dopeboy:~# exit : To leave "root" . Then you can do $ sudo synaptic ... which will usually work OK. ... – Knud Larsen Nov 30 '15 at 16:11
  • thank you all but problem has gone i have rebuild my vps :/ – Jãşhť'Sşeriĕ Dec 02 '15 at 04:29

2 Answers2

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Even root does not have the privileges to open a GUI application in your personal X session. Log out of the root account and start synaptic with your own privileges, perhaps using gksudo.

root@dopeboy# exit
you@dopeboy$ gksudo synaptic &
tripleee
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For me I just had to export xauthority to my regular user, not root

export XAUTHORITY=$HOME/.Xauthority

Then run it with sudo

sudo synaptic
brunorcabral
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