[disclaimer: I'm not the package maintainer] Hi,
kuiserver is part of the plasma-workspace package, installing it could probably fix the problem.
Package: dolphin Version: 4:18.08.0-1 Severity: normal Dear Maintainer, Installing dolpin using xfce as desktop environment on debian 10.3. Copying files do NOT show the file transfer dialog. So you never know when it is done. This is particular bad when copying to a slow USB stick. As the stick might be removed before the transfer is finished, corrupting the file system It seems the problem has been also detected already with Manjaro: https://forum.manjaro.org/t/bug-kde-applications-do-not-pull-in-kuiserver-which-now-is-in-plasma-workspace/69675 Unfortunatlly there is no kuiserver package in debian. Installing the complete plasma-desktop as a workaround pulls in a lot of dependencies filling 1GB of diskspace. Thus only adding this as a dependency might not be the best idea. But I could not figure out which packet is acctually needed. -- System Information: Debian Release: 10.3 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 5.4.0-0.bpo.3-amd64 (SMP w/4 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages dolphin depends on: ii baloo-kf5 5.54.0-1 ii kinit 5.54.0-1 ii kio 5.54.1-1 ii libc6 2.28-10 ii libdolphinvcs5 4:18.08.0-1 ii libkf5baloo5 5.54.0-1 ii libkf5baloowidgets5 4:18.08.1-1 ii libkf5bookmarks5 5.54.0-1 ii libkf5codecs5 5.54.0-1 ii libkf5completion5 5.54.0-1 ii libkf5configcore5 5.54.0-1+deb10u1 ii libkf5configgui5 5.54.0-1+deb10u1 ii libkf5configwidgets5 5.54.0-1 ii libkf5coreaddons5 5.54.0-1 ii libkf5crash5 5.54.0-1 ii libkf5dbusaddons5 5.54.0-1 ii libkf5filemetadata3 5.54.0-1 ii libkf5i18n5 5.54.0-1 ii libkf5iconthemes5 5.54.0-1 ii libkf5itemviews5 5.54.0-1 ii libkf5jobwidgets5 5.54.0-1 ii libkf5kcmutils5 5.54.0-1 ii libkf5kiocore5 5.54.1-1 ii libkf5kiofilewidgets5 5.54.1-1 ii libkf5kiowidgets5 5.54.1-1 ii libkf5newstuff5 5.54.0-2 ii libkf5notifications5 5.54.0-1 ii libkf5parts5 5.54.0-1 ii libkf5service-bin 5.54.0-1 ii libkf5service5 5.54.0-1 ii libkf5solid5 5.54.0-1 ii libkf5textwidgets5 5.54.0-1 ii libkf5widgetsaddons5 5.54.0-1 ii libkf5xmlgui5 5.54.0-1 ii libphonon4qt5-4 4:4.10.2-1 ii libqt5core5a 5.11.3+dfsg1-1+deb10u3 ii libqt5dbus5 5.11.3+dfsg1-1+deb10u3 ii libqt5gui5 5.11.3+dfsg1-1+deb10u3 ii libqt5widgets5 5.11.3+dfsg1-1+deb10u3 ii libqt5xml5 5.11.3+dfsg1-1+deb10u3 ii libstdc++6 8.3.0-6 ii phonon4qt5 4:4.10.2-1 Versions of packages dolphin recommends: ii kimageformat-plugins 5.54.0-1 ii kio-extras 4:18.08.3-1 ii ruby 1:2.5.1 Versions of packages dolphin suggests: pn dolphin-plugins <none> -- no debconf information