出现原因

远程调用 Linux GUI 时报错：

qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/root/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

解决方法

安装 Xorg

Xorg是X11的实现，负责连接到Xserver进行输入和输出。

sudo apt-get install xorg

重启 ssh 服务

service ssh restart

解决qt.qpa.xcb: could not connect to display问题_pycharm中qt.qpa.xcb: could not connect to display 1_