3D view does not appear on Arch/Wayland

[speters]

Like someone reported in issue #1, I experience as similar black screen on my Arch Linux installation running KDE Plasma Wayland.

 bin/viaconstructor tests/data/simple.dxf
loading file: 100.0%
dxfread: selected layers: 0
combining segments: 100.0%
set offsets: 100.0%
OpenGL-Version: 4.6 (Compatibility Profile) Mesa 25.0.2-arch1.2
calc offset path: 100.0%
generating machine commands: 100.0%
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
saving setup defaults

Screenshot of the underlying terminal "shining through":

python --version
Python 3.13.2

As I was not able to install viainstructor with the modules listed in requirements.txt (one of those problems was AttributeError: module 'pkgutil' has no attribute 'ImpImporter'), I stripped version info from requirements.in and installed latest versions:

pip list
Package           Version
----------------- -----------
contourpy         1.3.1
cycler            0.12.1
ezdxf             1.4.0
fonttools         4.56.0
freetype-py       2.5.1
kiwisolver        1.4.8
matplotlib        3.10.1
numpy             2.2.4
packaging         24.2
pillow            11.1.0
pip               25.0.1
pyclipper         1.3.0.post6
PyOpenGL          3.1.9
pyparsing         3.2.3
PyQt5             5.15.11
PyQt5-Qt5         5.15.16
PyQt5_sip         12.17.0
python-dateutil   2.9.0.post0
python-utils      3.9.1
setproctitle      1.3.5
setuptools        78.1.0
shapely           2.0.7
six               1.17.0
svgwrite          1.4.3
typing_extensions 4.13.0

[multigcs]

This is a problem with opengl, for Wayland we need to rewrite the 3d stuff with OpenGL-ES

[dsancheznet]

I am on a Fedora 42 installation now, and I have had the same problem ever since I reported the issue back in Fedora 36 and today I mistakenly ran viacontructor as root ( bad practice ;) but suddenly the 3d view appeared correctly. Maybe that helps finding a fix.

Best regards
DSanchez