Unigine Superposition won't run on Kubuntu 18.04

FurryJackman · April 28, 2018, 12:11pm

Looks like the new QT framework that Kubuntu comes with is incompatible with Superposition running on Kubuntu 18.04. It is currently impossible to run Unigine Superposition on Kubuntu 18.04 due to QT5 framework differences. Anyone else had any better luck with this?

noenken · April 28, 2018, 12:39pm

Never really tried to do anything about it since the AUR version wouldn’t finish install on manjaro KDE.
Valley workes fine though… and so did Heaven.
And Valley also works on Kubuntu 18.04.
Weird.

FurryJackman · April 28, 2018, 1:50pm

Yup, just confirmed Valley works on 18.04. This bug with Superposition is QT5 framework specific.

RikerMoustache · May 12, 2018, 3:56pm

Maybe we should petition them to make a Snap package?

FurryJackman · October 6, 2018, 10:37am

Months later, and still, with the QT5 framework from KDE installed, even on 18.04.1, Superposition won’t run. Apparently this is the only thread on this issue on Kubuntu, but as noenken said, Manjaro with KDE installed also has similar issues:

Vanilla 18.04 works fine according to others posting threads running vanilla 18.04: (after resolution scaling is dealt with)

Ubuntu 18.04.1 is the latest LTS release so you figured they’d release a 1.01 bugfix for Kubuntu, but nope. This bug is Kubuntu specific, so no one is bothering.

Edit: I may have a fix… Stay tuned.

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…

Valentin_06130 · December 4, 2023, 9:43am

Same problem here : cannot click the “RUN” button because of the window size. I am running Debian “Bookworm” 12 but not under KDE.