X11Util warnings when trying to run sketch with P2D/P3D on Ubuntu 20.04 LTS

[ElnuDev]

Description

When running a Processing sketch with P2D or 3D, the sketch starts black, then starts after a second or so. After closing the sketch, the following warnings are shown in console:

X11Util.Display: Shutdown (JVM shutdown: true, open (no close attempt): 2/2, reusable (open, marked uncloseable): 0, pending (open in creation order): 2)
X11Util: Open X11 Display Connections: 2
X11Util: Open[0]: NamedX11Display[:1, 0x7f5cbc006ee0, refCount 1, unCloseable false]
X11Util: Open[1]: NamedX11Display[:1, 0x7f5cbc017340, refCount 1, unCloseable false]

Steps to Reproduce

1. Open Processing in Ubuntu 20.04 LTS.
2. Create a setup function. In the function, execute size with some width and height for the first two parameters, and either P2D or P3D for the third parameter.
3. Run the program; the sketch should start black, then start after a second or so.
4. Close the sketch; the warnings should be in the console.

Your Environment

• Processing version: 3.5.4
• Operating System and OS version: Ubuntu 20.04 LTS
• Other information: Nvidia RTX 2060 SUPER running with NVIDIA X Server

[suprafly]

Same issue here. Were you able to resolve it?