求助！！！有大佬做过开发板跑Qt然后用VNC远程同步显示控制

18768178170

有大佬做过开发板跑Qt，然后电脑用VNC同步显示控制吗？？？？？目前用正点原子的出厂文件系统 ，启动qt应用指令如下
./qt_app -platform vnc:size=1024x600,port=5900
开发板屏幕不显示Qt界面，但是用vnc viewer可以查看也可以操作


用x11vnc，提示XOpenDisplay(":0.0") failed.，
网上有人说需要startx一下，提示
hostname: Host name lookup failure
xauth:  file /home/root/.serverauth.1551 does not exist

18768178170

使用xcb也不行
root@ATK-IMX6U:~# /usr/local/data/module_HMI -platform xcb      
qt.qpa.xcb: could not connect to display :0.0
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" 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: linuxfb, minimal, offscreen, vnc, xcb.

Aborted
root@ATK-IMX6U:~#