I have no idea what version you've got and how they were installed, based on what of your restrictions , with package manager, from source,pre builds from the qt guys ... so im just guessing
There a binary and developer packages, so there are several packages that are named qt* but most of them are not the one stressed needs
these are my current installed qt packages right after doing the VM/stressed build test (http://forum.stunts.hu/index.php?topic=3592.msg76041#msg76041)
i've read a post with installing libqt5-opengl-dev could help - but this packages is not part of my installation...
There a binary and developer packages, so there are several packages that are named qt* but most of them are not the one stressed needs
these are my current installed qt packages right after doing the VM/stressed build test (http://forum.stunts.hu/index.php?topic=3592.msg76041#msg76041)
Quote
linux@linux-virtual-machine:~$ apt list --installed "qt*"
Listing... Done
qt5-default/focal,now 5.12.8+dfsg-0ubuntu1 amd64 [installed]
qt5-gtk-platformtheme/focal,now 5.12.8+dfsg-0ubuntu1 amd64 [installed,automatic]
qt5-qmake-bin/focal,now 5.12.8+dfsg-0ubuntu1 amd64 [installed,automatic]
qt5-qmake/focal,now 5.12.8+dfsg-0ubuntu1 amd64 [installed,automatic]
qtbase5-dev-tools/focal,now 5.12.8+dfsg-0ubuntu1 amd64 [installed,automatic]
qtbase5-dev/focal,now 5.12.8+dfsg-0ubuntu1 amd64 [installed,automatic]
qtchooser/focal,now 66-2build1 amd64 [installed,automatic]
qttranslations5-l10n/focal,focal,now 5.12.8-0ubuntu1 all [installed,automatic]
i've read a post with installing libqt5-opengl-dev could help - but this packages is not part of my installation...