错误:未在环境中设置XDG_RUNTIME_DIR. Gtk-警告**:无法打开显示: [英] error: XDG_RUNTIME_DIR not set in the environment. Gtk-WARNING **: cannot open display:

问题描述

我曾经以崇高的态度打开文本文件，而对于只读文件，我曾经做过: sudo sublime.但是现在突然sudo sublime命令给出了以下错误:

I used to open text files with sublime, and for Read-only files, I used to do : sudo sublime. But now just suddenly the sudo sublime command gives the following error :

(sublime:3931): Gtk-WARNING **: cannot open display:

而sublime命令运行正常.我用gedit尝试了相同的操作，发生了相同的事情，并显示了gedit的错误:

while sublime command is working fine. I tried the same with gedit, and the same thing happened, with the error with gedit being shown :

error: XDG_RUNTIME_DIR not set in the environment.
(gedit:3933): Gtk-WARNING **: cannot open display: 

我安装了gtk，并尝试了gksudo，仍然出现相同的错误！

I installed gtk, and tried gksudo, still got the same error!

我在网上搜索后发现了这些方法:

I searched the web and found these ways :

1. xhost +localhost: https://askubuntu.com/questions/614387 /gksu-gtk-warning-cannot-open-display-0
2. export DISPLAY=:0.0:
3. ssh username@hostname -X
4. ssh username@hostname -Y

1. xhost +localhost : https://askubuntu.com/questions/614387/gksu-gtk-warning-cannot-open-display-0
2. export DISPLAY=:0.0 :
3. ssh username@hostname -X
4. ssh username@hostname -Y
5. https://superuser.com/questions/310197/how-do-i-fix-a-cannot-open-display-error-when-opening-an-x-program-after-sshi

以上方法均无效.

对我有用的是:

pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY sublime

从此处开始:我想知道为什么我会突然收到这个错误！另外，我想回到sudo sublime版本，因为它很容易记住.我该如何解决?

I want to know why exactly am I getting this error, that too suddenly! Also, I want to get back to the sudo sublime version, since it is easy to remember. How can I fix that?

此外，我最近对该系统所做的更改是:

Also, the recent changes I did to the system were :

1. 为Ubuntu安装的Mac主题: http://www.noobslab.com/2014/04/macbuntu-1404-pack-is-released.html

已安装gksu(用于gksudo)

Installed gksu(for gksudo)

我们将不胜感激！

推荐答案

我有同样的问题.

在我的情况下，原因是sudo不继承环境变量:DISPLAY XAUTHORITY.

The reason in my situation is that sudo does NOT inherit environment variables: DISPLAY XAUTHORITY.

对于Ubuntu 14，通过sudo visudo打开sudoers文件，然后粘贴:

For Ubuntu 14, open sudoers file via sudo visudo, then paste:

Defaults        env_keep += "DISPLAY XAUTHORITY"

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