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Date: Sun, 22 Dec 2013 10:06:39 -0700
From: Michael Torrie <torriem@gmail.com>
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To: python-list@python.org
Subject: Re: [OT] vnc-problem with idle running as sudo on raspberry pi
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On 12/22/2013 06:27 AM, Jean Dubois wrote:
> I was wrong writing idle_as_root worked this way. As a matter of fact,
> this method also does not work as expected, as can be seen from this
> message:
> 
> X11 connection rejected because of wrong authentication.
> 
> New 'X' desktop is raspberrypi:1
> 
> Starting applications specified in /home/pi/.vnc/xstartup
> Log file is /home/pi/.vnc/raspberrypi:1.log
> 
> Starting TightVNC server for pi 

In future, I suspect you'll need to take questions like this that don't
really have anything to do with Python to a Raspberry Pi forum or e-mail
list.  Or a general Linux list.

Short answer:

Edit /etc/sudoers and add this line somewhere in it (probably near other
lines that look similar):

Defaults env_keep += "DISPLAY XAUTHORITY"

If that doesn't work, then you'll have to talk to folks running the
Rasbian on their Pi.  Sometimes XAUTHORITY isn't set.