I think it is a bug in Qt, reported as https://bugreports.qt.io/browse/QTBUG-67537.
Another possible workaround: export QT_XCB_GL_INTEGRATION=xcb_egl (the bug is in the xcb_glx integration plugin, this environment variable will switch to a different integration plugin).
I think it is a bug in Qt, reported as https:/ /bugreports. qt.io/browse/ QTBUG-67537.
Another possible workaround: export QT_XCB_ GL_INTEGRATION= xcb_egl (the bug is in the xcb_glx integration plugin, this environment variable will switch to a different integration plugin).