can't connect to X11 (Ubuntu 22.04.3 LTS)

[Utopiah]

Failed to initialize graphics environment

java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable.

(base) utopiah@r15-desktop4090:~/Prototypes/android-studio-docker$ echo $DISPLAY
:0

with in compose.yml having

       # Mount the proper locationm for x11 server if you are running this in native linux
      - /tmp/.X11-unix:/tmp/.X11-unix .
      - android_studio:/androidstudio-data
    environment:
      - DISPLAY=:0 # Set DISPLAY environment variable

[Utopiah]

Same error on Ubuntu 23.10

[Utopiah]

I tried xhost + or adding in $HOME/.bash_profile

JAVA_OPTIONS=-Djava.awt.headless=true
export JAVA_OPTIONS

but same result.

[Deadolus]

The error tells you that you can't connect to the display server.
Usually, the server listens on :0, but this could also be some other variable.
What does your shell (not inside docker!) DISPLAY environment variable say?

[Utopiah]

That's what I thought which is why I shared

echo $DISPLAY
:0

isn't it matching?

[Utopiah]

Not sure if it makes a difference in that case but I run docker here as a user, not as root.

[Deadolus]

Not sure if it makes a difference in that case but I run docker here as a user, not as root.

That should not make a difference.
Make sure you are running x11, not wayland mabe?
Maybe some problem with your .xauthority file not allowing access to the x11 server?
Sorry can't help here, I am also no display server expert.

[Utopiah]

Seems so :

fabien@fabien-CORSAIR-ONE-i160:~$ echo $XDG_SESSION_TYPE
x11

No worries I'll investigate https://stackoverflow.com/questions/44429394/x11-forwarding-of-a-gui-app-running-in-docker and report here!

[mihalycsaba]

@Utopiah I assume you use wayland try running this in the terminal 'xhost + local:' works on gnome

@Deadolus maybe this can be added in the run.sh for wayland?

[arturbacilla]

What if one does not have X11? In my case I'm on Nobara which is derived from Fedora which ended support for X11 and made wayland default. Any ideas on how to make it work?