Issues with Using Qt6 and OpenGL in Docker on Ubuntu 24.04

Ribes

Hello!

I’m trying to run a Qt6 application that uses OpenGL inside a Docker container running Ubuntu 24.04, but I’m encountering issues with OpenGL rendering. Specifically, when trying to run an example from Qt6's OpenGL examples (2dpainting), I get the error:

failed to create drawable
failed to create drawable

Additionally, there is a warning:

QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'

When running the 2dpainting example, I get a black screen with no rendering, but when I run openglwindow example for the OpenGL context, it successfully displays the object. There are other examples like: hellogl2, textures, cube... that don't work.

In addition, after installing mesa-utils and running glxgears, the gears render perfectly.

Here are the commands I run, as well as the Dockerfile I created to test it.

$ docker build -t ubuntu24-qt6 .
$ docker run -it --rm -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix ubuntu24-qt6:latest

# Latest LTS Ubuntu
ARG BASE_IMAGE=ubuntu:24.04
FROM $BASE_IMAGE

# Unset to allow running qt interfaces.
ENV QT_QPA_PLATFORM=""

WORKDIR /home/ubuntu

# install packages
RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
    --mount=type=cache,target=/var/lib/apt,sharing=locked \
    apt update \
    && apt install -y --no-install-recommends \
	qt6-base-dev \
	qt6-base-examples \
    && rm -rf /var/lib/apt/lists/*

Could you help me get Qt6 and OpenGL working in a Docker container on Ubuntu 24?

Thank you in advance.