Unigine Superposition won't run on Kubuntu 18.04

FurryJackman · October 6, 2018, 4:43pm

SOLUTION:

Brute force updating Unigine Superposition QT5 to 5.9.5 (AKA fixing it for Ubuntu 18.04.1 and Fedora 28) Linux

So you have Ubuntu 18.04.1 but you have KDE installed. KDE somehow causes a conflict with Unigine Superposition and it just won’t run. Instead of trying to fix the ancient version of QT5 in Superposition, (cause it doesn’t use the OS’ QT5 version by default, likely for safety reasons) let’s brute force an update to it’s bundled QT5 to what Ubuntu 18.04.1 uses: QT5 5.9.5 The gist of it is simple. Inside each folder of /Unigine_Superposition-1.0/bin/qt is the base version of QT5 that Superposition was based off of, not anticipating new OpenSSL/libcrypto versions to ever arise, causing it to fail. We’re going to one by one replace the contents of the folders in /bin/qt with stuff from our pre-installed QT 5.9.5 for /qt/lib, Grab the liqt5*.so.5 symlinks and the libqt5*.so.5.9.5 files and copy and paste them from /usr/lib/x86_64-linux-gnu. If any extra files remain in /Unigine_Superposition-1.0/bin/qt/lib, you will have to grab them with apt install, then continue copying over from x86_64-linux-gnu. On 18.04.1, the usual naming format of the packages is libqt5*5 for the stuff in the x86_64-linux-gnu folder. Don’t modify the libicu*.so.56 files. In my testing, they don’t affect the benchmark or QT5 at all. In my experience, these are missing from the stock 18.04.1 install: Just run apt install libqt5quickparticles5 libqt5quicktest5 libqt5websockets5 (though yours may vary based on distro spins) In /qt/plugins, copy from /usr/lib/x86_64-linux-gnu/qt5/plugins the entire xcbglintegrations folder and only libqxcb.so from the platforms folder. In /qt/qml, things get interesting. /qt/qml/Qt/labs is supposed to have 2 folders to replace, but on a stock 18.04.1 installation, only one is present in /usr/lib/x86_64-linux-gnu/qt5/qml/Qt/labs: folderlistmodel. That folder can be copied over immediately, but for settings, you’ll have to use apt install qml-module-qt-labs-settings to get that folder in /usr/lib/x86_64-linux-gnu/qt5/qml/Qt/labs. Going back up a few levels to /q…