fedora-25 - KDE System Settings - Unable to customize Appearance

[aQubesUser]

Qubes OS version (e.g., R3.2):

R3.2

Affected TemplateVMs (e.g., fedora-23, if applicable):

fedora-25

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Upon installation of fedora-25 TemplateVM and switching a VM to fedora-25 (from fedora-23), KDE System Settings inside the VM shows an error when trying to customize appearance. I had to install the plasma-systemsettings package.

Expected behavior:

KDE System Settings should allow Appearance customization.

Actual behavior:

System Settings window displays

The module Appearance is not a valid configuration module.

The diagnosis is:
The desktop file settings-appearance.desktop does not specify a library

Steps to reproduce the behavior:

Upgrade TemplateVM fedora-23 to fedora-25 using instructions on https://www.qubes-os.org/doc/template/fedora/upgrade-24-to-25/

Install plasma-systemsettings package:
sudo dnf install plasma-systemsettings

Run systemsettings5, switch to 'Classic Tree View', click 'Appearance'

General notes:

Trying to configure the VM to use a dark theme instead of the default light theme.

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Related issues:

none

[aQubesUser]

Another issue I have seen after changing the sys-net and sys-firewall to use the fedora-25 template is that the NetworkManager icon in the KDE System Tray is blank. No icon is shown.

[aQubesUser]

Another issue I have seen after changing the sys-net and sys-firewall to use the fedora-25 template is that the NetworkManager icon in the KDE System Tray is blank. No icon is shown.

[aQubesUser]

After installing the plasma-desktop package I am able to see the options in the systemsettings5 menu.

Changing any of the settings doesn't result in any changes to the appearance of my programs, however.

[aQubesUser]

After installing the plasma-desktop package I am able to see the options in the systemsettings5 menu.

Changing any of the settings doesn't result in any changes to the appearance of my programs, however.

[aQubesUser]

How do I force the VM to use KDE for all windows? This seems to be using Gnome to display all windows.

[aQubesUser]

How do I force the VM to use KDE for all windows? This seems to be using Gnome to display all windows.

[aQubesUser]

By following instructions in https://fedoraproject.org/wiki/KDE I am able to get a full KDE desktop session running, which is certainly not what I am looking for. How do I get my fedora-25 TemplateVM to use KDE entirely and not use Gnome at all?

[aQubesUser]

By following instructions in https://fedoraproject.org/wiki/KDE I am able to get a full KDE desktop session running, which is certainly not what I am looking for. How do I get my fedora-25 TemplateVM to use KDE entirely and not use Gnome at all?

[marmarek]

If I understand your question, you simply want to install and use KDE applications - so, konsole instead of gnome-terminal, dolphin instead of nautilus etc. After installing them, you can choose what you want to have in menu using VM settings.

[marmarek]

If I understand your question, you simply want to install and use KDE applications - so, konsole instead of gnome-terminal, dolphin instead of nautilus etc. After installing them, you can choose what you want to have in menu using VM settings.

[aQubesUser]

No, you do not understand my question. I am not trying to simply install and use KDE applications instead of Gnome applications.

My KDE applications are being rendered using Gnome and not KDE, any changes that I make in systemsettings5 do not affect my KDE applications as they are being rendered with Gnome. Please see the following screenshots:

Konsole with KDE in dom0:

Konsole with Gnome in a VM that uses the fedora-25 TemplateVM:

When my applications are rendered with Gnome, any changes I make in systemsettings5 have no effect as the KDE applications aren't being rendered with KDE.

[aQubesUser]

No, you do not understand my question. I am not trying to simply install and use KDE applications instead of Gnome applications.

My KDE applications are being rendered using Gnome and not KDE, any changes that I make in systemsettings5 do not affect my KDE applications as they are being rendered with Gnome. Please see the following screenshots:

Konsole with KDE in dom0:

Konsole with Gnome in a VM that uses the fedora-25 TemplateVM:

When my applications are rendered with Gnome, any changes I make in systemsettings5 have no effect as the KDE applications aren't being rendered with KDE.

[aQubesUser]

A workaround is to install gnome-tweak-tool and breeze-gtk and set the theme through the tweak tool.

Thank you.

[aQubesUser]

A workaround is to install gnome-tweak-tool and breeze-gtk and set the theme through the tweak tool.

Thank you.

[aQubesUser]

An additional comment for anyone who may be trying to achieve consistent themes across VMS: if you have a Fedora VM that was upgraded from an older version of Fedora, you may find that KDE programs do not get themed properly despite having changed settings in gnome-tweak-tool. This may be due to some old settings that the VM somehow hasn't stopped using. I don't know which file(s) this could be caused by but creating a new VM, reinstalling the required programs (a list can be generated with sudo dnf list installed) and copying files over allowed me to ensure that all of my VMs are consistently themed.

Thanks

[aQubesUser]

An additional comment for anyone who may be trying to achieve consistent themes across VMS: if you have a Fedora VM that was upgraded from an older version of Fedora, you may find that KDE programs do not get themed properly despite having changed settings in gnome-tweak-tool. This may be due to some old settings that the VM somehow hasn't stopped using. I don't know which file(s) this could be caused by but creating a new VM, reinstalling the required programs (a list can be generated with sudo dnf list installed) and copying files over allowed me to ensure that all of my VMs are consistently themed.

Thanks

[naith]

I`m solve this trouble in Mint. Render for KDE app (Krusader, etc.) is Gnome. In my case solve this trouble qt4-qtconfig. System settings for KDE says this same error.

[naith]

I`m solve this trouble in Mint. Render for KDE app (Krusader, etc.) is Gnome. In my case solve this trouble qt4-qtconfig. System settings for KDE says this same error.