VS Code：QT 无法连接到显示

问题描述

语言：python==3.8.5
平台：Anaconda==4.9.2
操作系统：Ubuntu 20.10
包：opencv-contrib-python==4.5.1.48
IDE：VS Code 2020
执行 cv2.imshow('Final',src_img)

时出现此错误

qt.qpa.xcb: Could not connect to display 
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/ubuntu/anaconda3/lib/python3.8/site-packages/cv2/qt/plugins" even though it was found.
This application Failed to start because no Qt platform plugin Could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: xcb,eglfs,minimal,minimalegl,offscreen,vnc.
Aborted (core dumped)

使用 QT_DEBUG_PLUGIN=1 script.py 执行

QFactoryLoader::QFactoryLoader() looking at "/home/bas/anaconda3/plugins/platforms/libqxcb.so"
Found Metadata in lib /home/bas/anaconda3/plugins/platforms/libqxcb.so,Metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3","MetaData": {
        "Keys": [
            "xcb"
        ]
    },"className": "QXcbIntegrationPlugin","debug": false,"version": 329991
}


Got keys from plugin Meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/home/bas/anaconda3/bin/platforms" ...
loaded library "/home/bas/anaconda3/lib/python3.8/site-packages/cv2/qt/plugins/platforms/libqxcb.so"
qt.qpa.xcb: Could not connect to display 
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/bas/anaconda3/lib/python3.8/site-packages/cv2/qt/plugins" even though it was found.
This application Failed to start because no Qt platform plugin Could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: xcb,vnc.

Aborted (core dumped)

仅当我在 vs code 终端中运行脚本时才会出现此问题。该脚本在 ubuntu-terminal 中执行时没有错误。

对此问题的一些帮助将不胜感激。谢谢

解决方法

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