GUI tests without display

[Fabian Cenedese]

Hello

I want to test some GUI applications with Jenkins using pyautogui.
The tests work when run manually as then there's a display etc.
However I couldn't get them to work yet with Jenkins. I tried both
the xvnc as well as the xvfb plugin but both still have problems.

Xlib: extension "RANDR" missing on display

Is this because the test agent (Ubuntu 20/22) uses Wayland
instead of X server? Is anybody using these plugins? Is there
a better solution?

Thanks

bye Fabi