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91 lines
2.1 KiB
Markdown
91 lines
2.1 KiB
Markdown
---
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lang: en
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layout: doc
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permalink: /doc/kde/
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redirect_from:
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- /en/doc/kde/
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ref: 176
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title: KDE (desktop environment)
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---
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Installation
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------------
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Prior to R3.2, KDE was the default desktop environment in Qubes. Beginning with
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R3.2, however, [XFCE is the new default desktop environment](/doc/releases/3.2/release-notes/). Nonetheless, it is
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still possible to install KDE by issuing this command in dom0:
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```shell_session
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$ sudo qubes-dom0-update @kde-desktop-qubes
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```
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You can also change your default login manager (lightdm) to the new KDE default: sddm
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* first you need to edit the `/etc/sddm.conf` to make sure if the custom X parameter is set according to Qubes needs:
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~~~
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[XDisplay]
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ServerArguments=-nolisten tcp -background none
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~~~
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* disable the lightdm service:
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~~~
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$ sudo systemctl disable lightdm
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~~~
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* enable the sddm service:
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~~~
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$ sudo systemctl enable sddm
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~~~
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* reboot
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If you encounter performance issues with KDE, try switching back to LightDM.
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Window Management
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-----------------
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You can set each window's position and size like this:
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~~~
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Right click title bar --> More actions --> Special window settings...
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Window matching tab
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Window class (application): Exact Match: <vm_name>
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Window title: Substring Match: <partial or full program name>
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Size & Position tab
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[x] Position: Apply Initially: x,y
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[x] Size: Apply Initially: x,y
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~~~
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You can also use `kstart` to control virtual desktop placement like this:
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~~~
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kstart --desktop 3 --windowclass <vm_name> -q --tray -a <vm_name> '<run_program_command>'
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~~~
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(Replace "3" with whichever virtual desktop you want the window to be
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on.)
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This can be useful for creating a simple shell script which will set up your
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workspace the way you like.
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Removal
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------------
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If you decide to remove KDE do **not** use `dnf remove @kde-desktop-qubes`. You will almost certainly break your system.
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The safest way to remove (most of) KDE is:
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~~~
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sudo dnf remove kdelibs plasma-workspace
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~~~
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Mailing List Threads
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--------------------
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* [Nalu's KDE customization thread](https://groups.google.com/d/topic/qubes-users/KhfzF19NG1s/discussion)
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