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Plasma 6
Plasma 6 - KDE Plasma Desktop version 6
Contents
Plasma 6 - KDE Plasma Desktop version 6
Intro
Upgrade Strategy for KDE/Plasma 5 users
Default Graphical Session
Upgrade Quirks
Package Changes
Packages removed or replaced upstream
KDE Team-maintained packages lacking a Plasma 6 / Qt6 port in Debian 13 (trixie)
Migrate to Marknote
Debugging
PlasmaShell
Annexes
Fixed Upgrade Quirks
Intro
DebianTrixie
will be the first Debian release to ship with Plasma 6.
Please see
PkgQtKde/TrixieReleasePlans
for a more in-depth view of what we'll be shipping for Trixie.
Upgrade Strategy for KDE/Plasma 5 users
A major upgrade like Plasma 6 brings a lot of changes.
Configs and settings for your default user might not work or only partially.
You may want to:
have backups
(always)
Create a new user for first test login.
Test the upgrade on a non-critical machine.
Install an alternative Desktop-Environment for rescue scenarios, e.g.
Xfce
is a lightweight DE.
In any case, go through the
Upgrade Quirks
below.
Default Graphical Session
Plasma/
Wayland
has been the default since Debian 12/bookworm.
In graphical login-manager like SDDM you can select Plasma/X11 if desired.
Upgrade Quirks
Q: After the upgrade, the start menu is completely empty and no icons are displayed on the status panel.
Running
kbuildsycoca6 --noincremental
should restore all icons.
Q: After the upgrade a lot of icons are missing.
If not installed, install the
desktop-file-utils
package.
Otherwise run :
sudo update-desktop-database
Q: Cannot reboot after finishing the upgrade
The old Plasma 5 session still running on top of the new Qt 6 / Frameworks 6 libraries fails to reboot when triggered from the UI. You need to
sudo reboot
from a terminal or krunner.
Q: Icons-Only Task Manager and/or Icons-and-Text Task Manager don't show anything
Log out and log back in.
Q: Window List just shows a single Entry "Plasma Desktop"
Please add answer here
Q: Scrollbars behave differently than before, clicks above or below the scroll thumb move the thumb to the positoin of the thumb and not scroll pagewise any more.
That's a new default setting, that can be changed back to the old behavior in System Settings in "Workspace / General Behavior / Clicking in scrollback track".
Q: Touchpad is not working in Plasma/X11
If you're using X11, make sure that
xserver-xorg-input-synaptics
is not installed and
xserver-xorg-input-libinput
is installed instead.
Q: All windows are opened on a single virtual desktop at login
That seems to be a limitation, if you are running on Wayland. On X11 each windows should be reopened on the virtual desktop it was at the previous logout or shutdown.
Q: I can’t unlock my Plasma session running as root
It’s highly discouraged to run a graphical session as root for security reasons, but see
Bug #1107481
Package Changes
Packages removed or replaced upstream
See
TrixieReleasePlans#Packages Added & Dropped
KDE Team-maintained packages lacking a Plasma 6 / Qt6 port in Debian 13 (trixie)
Broken, not shipped in Trixie
bismuth
latte-dock
kraft
Working
KDE Gear
artikulate
kamoso
kig
Qt6 port uploaded (20251025, forky)
ktouch
Qt6 port uploaded (20250818, forky)
rocs
umbrello
Others
amarok
Qt6 port uploaded (20250816, forky)
basket
calligraplan
cervisia
debconf-kde-helper
kaffeine
kchmviewer
kdesvn
kdesvn-kio-plugins
keurocalc
kexi
kio-gopher
kmplayer
Removed, unmaintained upstream (20250813, forky)
kmymoney
kookbook
krita
kronometer
ksnip
kstars
ktechlab
ktixz
ktimetracker
peruse
projecteur
quassel
rsibreak
subtitlecomposer
Migrate to Marknote
Please add more information about the migration process
Debugging
PlasmaShell
When you have issues with plasmashell like a crash, check its status and (re)start if needed:
systemctl --user status plasma-plasmashell.service
(or with
-l
option to see full-line)
systemctl --user restart plasma-plasmashell.service
You can get Plasma 6 logs like follows:
journalctl --user -u plasma-plasmashell.service
(optionally with the
-f
option to follow logs as they appear)
Annexes
Fixed Upgrade Quirks
Q: Apps with a built-in terminal such as Dolphin and Kate complain that Konsole is not found despite konsole being installed.
The application and konsole must be based on the same Qt version. Unstable currently features konsole 24.08 which is Qt 6-based. To get a terminal in dolphin or kate etc., you hence need those applications in version 24.05 or higher. Some of these packages might not have been uploaded to unstable yet and are only available in experimental.
Q: Apps in Plasma 6 cannot open web-links with the default web-browser.
Please make sure that
xdg-utils
has been updated to version 1.2.1.
Q: Dolphin does not support SMB protocol
Please, see
Debian-bug #1088117
Q: Keyboard backlight brightness can't be changed
This is a known bug (
Debian-bug #1089680
KDE bug #486067
). As a workaround, log out and log back
Q: After upgrade, network services no longer reachable by other hosts
plasma-firewall
is a new Recommends of
plasma-desktop
, and, up until plasma-firewall 6.3.4-2, would pull in
firewalld
with a default ruleset if you were not already using either
firewalld
or
ufw
. Particularly, this blocked mDNS, which is required for KDE Connect and automatic printer detection. Either open the mDNS service in system settings’ firewall configuration, or remove plasma-firewall and firewalld.
Q: kdeconnect does not connect to mobiles anymore
See question
Q: After upgrade, network services no longer reachable by other hosts
above
Q: sddm comes up with an on-screen/virtual keyboard by default
The on-screen keyboard can be removed inside a session by clicking on the on-screen keybaord key.
For permanent removal, there is a useful comment in
Bug#1091343
The default Plasma install uses sddm-theme-debian-breeze which should correctly
detect that a physical keyboard is connected and shouldn't show the virtual keyboard without a reason.
If another theme should be installed and there is no need for a virtual keyboard
you can uninstall the qt6-virtualkeyboard-plugin to get rid of thevirtual keyboard.
There is also a
discussion thread
on the
debian-kde mailing list
Q: Virtual Desktop Pager doesn't show Window Outlines and/or icons even if configured that way
Please make sure that
qt6-svg-plugins
is installed. It is just a Recommends of
libqt6svg6
so it may be missing.
CategoryPermalink
: mentioned in in the
Release Notes for trixie
Plasma 6 (
last modified 2025-10-24 22:19:25
Changes made after 24 July 2025 00:00 UTC are available under
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