[Solved] - "About System" has forgotten its KDE Apps Version.

[kdemeoz]

Hi

This started a few days ago on my Tower [albeit both my Maui 1703 VMs remain ok, as does my Lappy's Maui 1703]. Relaunching it does not help. Logging out does not help. Rebooting does not help. Alternative kernels don't help.
   

Looking in Synaptic i see these:
   

Should i remove & reinstall one or both of these, or should i be looking elsewhere for the root-cause?

[leszek]

That is strange. The kcm basically just executes for the sake of getting version number (as there is no other easy way of doing that) dolphin --version and if it gets output from there it displays the version number. Output would be like

dolphin 17.04.1

If it does not get any output from there it should hide the apps version label completely.
Did you maybe remove dolphin ?
Is the output of dolphin --version correct ?

[kdemeoz]

I certainly have not removed Dolphin, heehee (i use it all the time), but your version is later than mine:

Code:

$ dolphin --version
dolphin 16.12.2

[leszek]

Should nevertheless work just fine. Strange.
Anything happens in terms of errors when executed via terminal?

Code:

kcmshell5 about-extended

[kdemeoz]

Aha. Good idea. I suspect that FireJail is causing this problem:

Code:

$ kcmshell5 about-extended
Reading profile /etc/firejail/dolphin.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-devel.inc
Reading profile /etc/firejail/disable-passwdmgr.inc
networkmanager-qt: void NetworkManager::NetworkManagerPrivate::propertiesChanged(const QVariantMap&) Unhandled property "AllDevices"
networkmanager-qt: void NetworkManager::NetworkManagerPrivate::propertiesChanged(const QVariantMap&) Unhandled property "Devices"
networkmanager-qt: void NetworkManager::NetworkManagerPrivate::propertiesChanged(const QVariantMap&) Unhandled property "GlobalDnsConfiguration"

When i updated my FJ to the new version on 21/5/17, i noted that it now provides "full desktop integration" [it didn't do that before]:

https://firejail.wordpress.com/
News
May 2017 – released Firejail 0.9.46. The main feature introduced in this release is full desktop integration for Cinnamon, KDE, LXDE/LXQT, MATE and XFCE desktop managers, and partial support for GNOME Shell and Unity. This allows the user to sandbox programs automatically by clicking on desktop manager menus, desktop launchers, and files in file manager. The integration is set up by running “sudo firecfg” after installing the software. For more information, check out our Linux Mint Sandboxing Guide or consult the documentation. This release also brings in quite a number of new features, bugfixes and new security profiles. Release Notes.

So though i didn't notice it at the time, now i fear that FJ broke this. Rats!!!!!

[kdemeoz]

I'm happy to advise that after research, I've solved it... About System now once again properly displays the KDE Apps Version.

   

It was indeed FireJail that caused the problem, specifically its new desktop integration feature. The solution turned out to be really easy, c/o the info i've quoted here from the source: https://github.com/rahiel/firectl

Running sudo firecfg enables Firejail for all programs, individual programs can then be disabled by removing them from /usr/local/bin.

So deleting Dolphin from /usr/local/bin ,  then logging out/in, made it all good again.

I've provided this update herein for the potential benefit of any other Maui user who also likes to use FireJail, & who opts to use its optional desktop integration feature.

Thank you, leszek, your info was vital to me being able to solve it:

The kcm basically just executes for the sake of getting version number (as there is no other easy way of doing that) dolphin --version and if it gets output from there it displays the version number