Manjaro Difference between revisions of "KDE"

Difference between revisions of "KDE"

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<languages/>
__TOC__
__TOC__


=Overview=
<translate>
=Overview= <!--T:1-->


<!--T:2-->
KDE is a software project currently comprised of a desktop environment known as Plasma, a collection of libraries and frameworks and several applications.
KDE is a software project currently comprised of a desktop environment known as Plasma, a collection of libraries and frameworks and several applications.




<!--T:3-->
[[File: KDE-de-18.jpg|left|600px]]
[[File: KDE-de-18.jpg|left|600px]]
<div style="clear: both"></div>
<div style="clear: both"></div>




=Appearance=
=Appearance= <!--T:4-->


====HiDPI====


If your screen has a relatively large resolution some portions of your desktop may appear abnormally small.<br />
====Desktop Settings==== <!--T:15-->
While KDE Plasma offers a way to 'scale' the appearance this feature does not always give good results, especially with fractional scaling (1.25x instead of 2x).<br />
The best results hinge on applying font DPI settings. It is advisable to keep your configuration to 'quarter steps'. Example:<br />
| 1.00x='''96dpi''' | 1.25x='''120dpi''' | 1.50x='''144dpi''' | 1.75x='''168dpi''' | 2.00x='''192dpi''' |


{{ic|System Settings -> Fonts -> Force font DPI (input desired DPI value)}}
<!--T:16-->
To reach desktop settings right click on the desktop and select ''Configure Desktop''.  If that option isn't available (it is configurable), you can use the keyboard shortcut {{ic|Alt+D,Alt+S}}


In order to set the DPI for GTK applications as well you can use an '''Environment Variable'''. Such as at {{ic|/etc/environment}}.<br />
<!--T:18-->
This variable will use the 'fractional' scale number instead of DPI, as shown above. For example if you are using 144dpi then that is a 'fractional scale' of 1.5. Example:<br />
'''Layout'''<br />
Under the ''Wallpaper'' tab there is a 'Layout' option. {{ic|Desktop Settings -> Wallpaper -> Layout}}<br /> 
"Folder View" will allow you to place and interact with items on the desktop.<br />
If you do not use desktop icons (or if you need encouragement for better organization) you can use "Desktop".<br />
"Desktop" layout will not allow items on the desktop and results in almost 20 MiB of memory savings in plasmashell.
 
 
====Lockscreen==== <!--T:12-->
 
<!--T:24-->
Basic settings such as delay and shortcut can be configured at the System Settings location<br />
{{ic|System Settings -> Security & Privacy -> Screen Locking}}<br />
Selecting the {{ic|Configure Appearance}} button in the top-right corner will present styling options.
 
 
=Tips and Tricks= <!--T:14-->
 
 
====File Manager==== <!--T:25-->
 
<!--T:26-->
Dolphin is the default file manager for Plasma.<br />
See its dedicated page [[Dolphin|here]].
 
 
====KCMs==== <!--T:27-->
 
<!--T:28-->
Settings in Plasma are provided by KDE Configuration Modules (KCM). These are the various modules or sections of ''System Settings'', but it should be noted that some KCMs are hidden from ''System Settings''. All modules can be managed and launched via the utility ''kcmshell6''.  
 
<!--T:29-->
To list available KCMs:
{{UserCmd|command=kcmshell6 --list}}
 
<!--T:30-->
To run a particular module (replacing ''kcm_kded'' with the desired module):
{{UserCmd|command=kcmshell6 kcm_kded}}
 
====Single Click vs Double Click==== <!--T:21-->
 
<!--T:22-->
In order to select between single and double click for opening files and folders you can use System Settings.<br />
{{ic|System Settings -> Workspace -> General Behavior -> "Clicking files or folders"}}
 
 
====Power==== <!--T:31-->


<code>GDK_SCALE=1.5</code>
=====Block Power Management===== <!--T:32-->


If you feel that icons need some resizing as well then you can use System Settings:
<!--T:33-->
The Plasma Power widget can be used to manually inhibit Screen Locking and Sleep but the ''kde-inhibit'' command can be used to manually block specific features. The following example will use all of them to inhibit each feature for as long as trailing command is running (in this case ''spotify'').


{{ic|System Settings -> Icons -> Configure Icon Sizes}}
<!--T:34-->
{{UserCmd|command=kde-inhibit --power --screenSaver --nightLight --notifications spotify}}


====Lockscreen====
=====Disable Hibernate===== <!--T:35-->


As of now there is no easy way to configure the appearance of the lockscreen. It is provided by your '''look-and-feel''' theme, or lacking that, by the the default breeze.  
<!--T:36-->
Hibernation can be disabled and it's menu entries hidden with the drop-in file ''/etc/polkit-1/rules.d/99-disable-hibernate.rules''.


<!--T:37-->
{{File|file=/etc/polkit-1/rules.d/99-disable-hibernate.rules|content=
<pre>
// Disable hibernate for all users
polkit.addRule(function(action, subject) {
  if ((action.id == "org.freedesktop.login1.hibernate")) {
      return polkit.Result.NO;
  }
});
polkit.addRule(function(action, subject) {
  if ((action.id == "org.freedesktop.login1.hibernate-multiple-sessions")) {
      return polkit.Result.NO;
  }
});
</pre>
}}


=Tips and Tricks=
=====Disable Suspend===== <!--T:38-->


====Desktop Settings====
<!--T:39-->
Suspend can be disabled and it's menu entries hidden with the drop-in file ''/etc/polkit-1/rules.d/99-disable-suspend.rules''.


To reach desktop settings right click on the desktop and select ''Configure Desktop''.
<!--T:40-->
{{File|file=/etc/polkit-1/rules.d/99-disable-suspend.rules|content=
<pre>
// Disable suspend for all users
polkit.addRule(function(action, subject) {
  if ((action.id == "org.freedesktop.login1.suspend")) {
      return polkit.Result.NO;
  }
});
polkit.addRule(function(action, subject) {
  if ((action.id == "org.freedesktop.login1.suspend-multiple-sessions")) {
      return polkit.Result.NO;
  }
});
</pre>
}}


======''Desktop Toolbox''======
=====End Session Commands===== <!--T:41-->


To toggle the appearance of the 'toolbox' navigate to the ''Tweaks'' tab. {{ic|Desktop Settings -> Tweaks -> Show the desktop toolbox}}
<!--T:42-->
Logging out or shutting down via a command can be useful whether for a non-graphical environment or inclusion in scripts. Whenever a plasma session is involved using the following commands should be preferred over more generic options such as ''systemctl reboot''.  


======''Layout''======
======Prompt====== <!--T:43-->


Under the ''Wallpaper'' tab there is a 'Layout' option. {{ic|Desktop Settings -> Wallpaper -> Layout}}<br /> 
<!--T:44-->
"Folder View" will allow you to place and interact with items on the desktop.<br />
DBUS provides methods to open a prompt to end a session (logout, reboot, shutdown).
If you do not use desktop icons (or if you need encouragement for better organization) you can use "Desktop".<br />
"Desktop" layout will not allow items on the desktop and results in almost 20 MiB of memory savings in plasmashell.


====kwin-lowlatency====
<!--T:45-->
{{UserCmd|command=qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptLogout}}
{{UserCmd|command=qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptReboot}}
{{UserCmd|command=qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptShutDown}}
{{UserCmd|command=qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptAll}}


If you feel that plasma, or more precisely the window manager isnt as 'snappy' as it could be (lag, stuttering, etc) when you have obviously capable hardware then there is one workaround to try. Some users report significant increases in speed and responsiveness when replacing the default window manager {{ic|kwin}} with a slightly modified and patched version - {{ic|kwin-lowlatency}}.<br />
======Immediate====== <!--T:46-->
The package is available in the [[AUR]] and should automatically replace {{ic|kwin}} when installed.
For more information see [https://github.com/tildearrow/kwin-lowlatency here].


====Single Click vs Double Click====
<!--T:47-->
Similar commands can be used to initiate the process without any prompt.


In order to select between single and double click for opening files and folders you can use System Settings.<br />
<!--T:48-->
{{ic|System Settings -> Desktop Behavior -> Click behavior}}
{{UserCmd|command=qdbus6 org.kde.Shutdown /Shutdown savesession}}
{{UserCmd|command=qdbus6 org.kde.Shutdown /Shutdown logout}}
{{UserCmd|command=qdbus6 org.kde.Shutdown /Shutdown logoutAndReboot}}
{{UserCmd|command=qdbus6 org.kde.Shutdown /Shutdown logoutAndShutdown}}




=See also=
=See also= <!--T:23-->
[https://kde.org/ KDE.org]<br />
[https://kde.org/ KDE.org]<br />
[https://wiki.archlinux.org/index.php/KDE Archwiki:KDE]<br />
[https://wiki.archlinux.org/index.php/KDE Archwiki:KDE]<br />
[https://en.wikipedia.org/wiki/KDE Wikipedia:KDE]<br />
[https://en.wikipedia.org/wiki/KDE Wikipedia:KDE]<br />
<br />
<br />
</translate>


 
[[Category:Contents Page{{#translation:}}]]
[[Category:Contents Page]]
[[Category:Editions{{#translation:}}]]
[[Category:Desktop]]

Latest revision as of 08:05, 12 November 2024

Other languages:
English • ‎Türkçe • ‎русский • ‎فارسی

Overview

KDE is a software project currently comprised of a desktop environment known as Plasma, a collection of libraries and frameworks and several applications.


KDE-de-18.jpg


Appearance

Desktop Settings

To reach desktop settings right click on the desktop and select Configure Desktop. If that option isn't available (it is configurable), you can use the keyboard shortcut Alt+D,Alt+S

Layout
Under the Wallpaper tab there is a 'Layout' option. Desktop Settings -> Wallpaper -> Layout
"Folder View" will allow you to place and interact with items on the desktop.
If you do not use desktop icons (or if you need encouragement for better organization) you can use "Desktop".
"Desktop" layout will not allow items on the desktop and results in almost 20 MiB of memory savings in plasmashell.


Lockscreen

Basic settings such as delay and shortcut can be configured at the System Settings location
System Settings -> Security & Privacy -> Screen Locking
Selecting the Configure Appearance button in the top-right corner will present styling options.


Tips and Tricks

File Manager

Dolphin is the default file manager for Plasma.
See its dedicated page here.


KCMs

Settings in Plasma are provided by KDE Configuration Modules (KCM). These are the various modules or sections of System Settings, but it should be noted that some KCMs are hidden from System Settings. All modules can be managed and launched via the utility kcmshell6.

To list available KCMs:

user $ kcmshell6 --list COPY TO CLIPBOARD


To run a particular module (replacing kcm_kded with the desired module):

user $ kcmshell6 kcm_kded COPY TO CLIPBOARD


Single Click vs Double Click

In order to select between single and double click for opening files and folders you can use System Settings.
System Settings -> Workspace -> General Behavior -> "Clicking files or folders"


Power

Block Power Management

The Plasma Power widget can be used to manually inhibit Screen Locking and Sleep but the kde-inhibit command can be used to manually block specific features. The following example will use all of them to inhibit each feature for as long as trailing command is running (in this case spotify).

user $ kde-inhibit --power --screenSaver --nightLight --notifications spotify COPY TO CLIPBOARD


Disable Hibernate

Hibernation can be disabled and it's menu entries hidden with the drop-in file /etc/polkit-1/rules.d/99-disable-hibernate.rules.

/etc/polkit-1/rules.d/99-disable-hibernate.rules
// Disable hibernate for all users
polkit.addRule(function(action, subject) {
   if ((action.id == "org.freedesktop.login1.hibernate")) {
      return polkit.Result.NO;
   }
});
polkit.addRule(function(action, subject) {
   if ((action.id == "org.freedesktop.login1.hibernate-multiple-sessions")) {
      return polkit.Result.NO;
   }
});
Disable Suspend

Suspend can be disabled and it's menu entries hidden with the drop-in file /etc/polkit-1/rules.d/99-disable-suspend.rules.

/etc/polkit-1/rules.d/99-disable-suspend.rules
// Disable suspend for all users
polkit.addRule(function(action, subject) {
   if ((action.id == "org.freedesktop.login1.suspend")) {
      return polkit.Result.NO;
   }
});
polkit.addRule(function(action, subject) {
   if ((action.id == "org.freedesktop.login1.suspend-multiple-sessions")) {
      return polkit.Result.NO;
   }
});
End Session Commands

Logging out or shutting down via a command can be useful whether for a non-graphical environment or inclusion in scripts. Whenever a plasma session is involved using the following commands should be preferred over more generic options such as systemctl reboot.

Prompt

DBUS provides methods to open a prompt to end a session (logout, reboot, shutdown).

user $ qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptLogout COPY TO CLIPBOARD


user $ qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptReboot COPY TO CLIPBOARD


user $ qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptShutDown COPY TO CLIPBOARD


user $ qdbus6 org.kde.LogoutPrompt /LogoutPrompt promptAll COPY TO CLIPBOARD


Immediate

Similar commands can be used to initiate the process without any prompt.

user $ qdbus6 org.kde.Shutdown /Shutdown savesession COPY TO CLIPBOARD


user $ qdbus6 org.kde.Shutdown /Shutdown logout COPY TO CLIPBOARD


user $ qdbus6 org.kde.Shutdown /Shutdown logoutAndReboot COPY TO CLIPBOARD


user $ qdbus6 org.kde.Shutdown /Shutdown logoutAndShutdown COPY TO CLIPBOARD



See also

KDE.org
Archwiki:KDE
Wikipedia:KDE

Retrieved from "https://wiki.manjaro.org/index.php?title=KDE&oldid=53659"
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