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No. You have KDE Frameworks 5.36, which is the newest version possible with Qt 5.6.
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sudo add-apt-repository ppa:kubuntu-ppa/backports
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sudo apt-get install kubuntu-desktop kde-config-gtk-style kde-config-gtk-style-preview
It runs with xUbuntu and LM19.
Today tested with the latest Image from LM19 MATE. The only problem is that you must configure your desktop by yourself.
The Breeze theme isn't nice for the Gtk-Tools from the Mate edition. But they are running perfectly with Plasma 5.12.
On my hardware LM19 KDE runs since a week perfectly.
Update: there are many plugins for the systemsettings. You can see it with:
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apt-cache search kde-config
I found a systemsettings that didn't follow that naming convention: kscreen. Used to change resolution and manipulate displays.
This process also worked for me on LM19 MATE plus dolphin, gwenview, konsole, kate.
There is a note in /etc/apt that says, "Also, please note that software in backports WILL NOT receive any review".
I suppose that means if it breaks, we fix ??
Will users get security fixes for KDE ? See: Unlike the packages released with Ubuntu, Backports do not come with any security support guarantee.
As of this reply, this process installed:
KDE Plasma Version 5.12.6
KDE Frameworks Version: 5.44.0
QT Version: 5.9.5
In the end, what is the benefit of using LM 19 + this process to get KDE, verses just using KUbuntu directly?
A developer said:
"The package set as a whole gets upgraded twice a year, yes. And security and bug fixes in between, as you say. Don't confuse the package set with individual packages, however. In Kubuntu, Plasma and Frameworks are updated as soon as we can get to them [..]"
The company said:
Security Support for Backports
Unlike the packages released with Ubuntu, Backports do not come with any security support guarantee. The Ubuntu Security Team does not update packages in Backports. When a package which has been backported receives a security update, the Ubuntu Backporters will make a best-effort attempt to update the backport.
Linux Mint no longer has a KDE release. If anybody is interested to use KDE Plasma desktop, he must install by himself. You are free, to use KDE neon or KDE the packages from the KDE neon project. Also you are free to use Kubuntu. But Kubuntu has no mintupdate and others:
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$ dpkg -l mint* | grep ^ii ii mint-artwork 1.1.6 all Linux Mint Artwork and Resources ii mint-backgrounds-tara 1.1 all The desktop backgrounds for Linux Mint 19 Tara ii mint-common 1.3.3 all Common scripts and resources for Linux Mint ii mint-info-mate 2018.02.07 all Necessary information about the Linux Mint release and edition. ii mint-meta-codecs 2018.06.08 all All the packages required for multimedia support in Linux Mint. ii mint-meta-core 2018.06.08 all Core Linux Mint packages ii mint-meta-mate 2018.06.08 all Set of packages installed by default in the MATE edition of Linux Mint ii mint-mirrors 1.1.7 all Linux Mint Repository mirrors ii mint-themes 1.7.2 all Mint themes ii mint-translations 2018.06.26 all Translation files for Linux Mint ii mint-upgrade-info 1.1.1 all Information about upgrade paths ii mint-x-icons 1.5.0 all Mint-X icon theme ii mint-y-icons 1.3.0 all Mint-Y icon theme ii mintbackup 2.3.4 all Home Directory Backup Tool ii mintdesktop 3.6.3 all Desktop configuration tool ii mintdrivers 1.4.1 all Driver Manager ii mintinstall 7.9.5 all Software Manager ii mintlocale 1.4.9 all Language selection tool ii mintmenu 5.9.0 all Advanced MATE menu ii mintreport 1.0.6 all Troubleshooting tool for Linux Mint ii mintsources 1.7.9 all Software Sources configuration tool ii mintstick 1.3.8 all write .img and .iso files to USB sticks ii mintsystem 8.3.8 all Linux Mint System Base Package ii mintupdate 5.4.0 all The Linux Mint Update Manager ii mintwelcome 2.3.2 all Welcome screen for Linux Mint
And Linux Mint has this:
And of course this:
https://en.wikipedia.org/wiki/Cinnamon_ ... re)#X-Apps
I use them also on KDE Plasma
There are some other good posts on this topic already in this forum.
Linux Mint KDE 18.3 has long-term support (LTS) until 2021.
There are various methods to install the KDE desktop (Kubuntu or Neon) on top of Linux Mint 19 Mate or Xfce. It has been recommended to use Xfce as it is easier to remove the Xfce stuff if you want to.
I have a working Linux Mint 19 Xfce with the KDE (Kubuntu) desktop installed into that which I call Linux Mint 19 xKDE, but it was not that simple and it took a while to get it to use all the native KDE packages over the Xfce packages. It does work well though.
You can also just update an existing Linux Mint KDE 18.3 to use the newer Plasma 5.12 + by just changing the source repository from "xenial" to "bionic", see link below. This is probably the easiest option.
Want Mint 19 but still want KDE? Have 18.3 KDE installed? Read on! - Linux Mint Forums
Install KDE from live environment - Linux Mint Forums
Then, of course, there are the actual KDE distributions. I have tried Kubuntu, Maui, Neon, etc... and they seem to work well. Linux Mint KDE has already been using the Kubuntu Backports PPA for KDE updates.
Hope this helps ...