Avant de faire le remove de baloo, ci-après le résultat des commandes suggérées par moko138 sachant que j'ai arrêté baloo...
hintzy@hintzy-System-Product-Name:~$ cat /etc/crontab
# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# m h dom mon dow user command
17 * * * * root cd / && run-parts --report /etc/cron.hourly
25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6 1 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
#
hintzy@hintzy-System-Product-Name:~$ apt-cache show $(dpkg -l | tr -s " " | cut -d" " -s -f2) | grep Depends | grep baloo
Depends: kio, libc6 (>= 2.14), libkf5baloo5 (>= 5.16.0), libkf5balooengine5, libkf5configcore5 (>= 4.97.0), libkf5coreaddons5 (>= 4.100.0), libkf5crash5 (>= 4.96.0), libkf5dbusaddons5 (>= 4.97.0), libkf5filemetadata3 (>= 5.1.0.1), libkf5i18n5 (>= 4.97.0), libkf5idletime5 (>= 4.96.0), libkf5kiocore5 (>= 4.96.0), libkf5solid5 (>= 4.97.0), libqt5core5a (>= 5.9.0~beta), libqt5dbus5 (>= 5.6.1~), libqt5gui5 (>= 5.6.1~), libqt5qml5 (>= 5.0.2), libqt5widgets5 (>= 5.6.1~), libstdc++6 (>= 4.2.1)
Depends: libkf5baloowidgets-bin, kio, libc6 (>= 2.14), libdolphinvcs5 (>= 4:15.07.90), libkf5baloo5 (>= 5.3.0+git20150512), libkf5baloowidgets5 (>= 15.08.0), libkf5bookmarks5 (>= 4.96.0), libkf5codecs5 (>= 4.96.0), libkf5completion5 (>= 4.97.0), libkf5configcore5 (>= 4.98.0), libkf5configgui5 (>= 4.97.0), libkf5configwidgets5 (>= 5.23.0), libkf5coreaddons5 (>= 5.2.0), libkf5crash5 (>= 5.15.0), libkf5dbusaddons5 (>= 4.97.0), libkf5filemetadata3 (>= 5.19.0), libkf5i18n5 (>= 4.97.0), libkf5iconthemes5 (>= 5.0.0), libkf5itemviews5 (>= 4.96.0), libkf5jobwidgets5 (>= 4.96.0), libkf5kcmutils5 (>= 4.96.0), libkf5kiocore5 (>= 5.44.0), libkf5kiofilewidgets5 (>= 5.37.0), libkf5kiowidgets5 (>= 5.27.0), libkf5newstuff5 (>= 5.37.0), libkf5notifications5 (>= 4.96.0), libkf5parts5 (>= 4.96.0), libkf5service-bin, libkf5service5 (>= 4.99.0), libkf5solid5 (>= 4.97.0), libkf5textwidgets5 (>= 4.96.0), libkf5widgetsaddons5 (>= 5.30.0), libkf5xmlgui-bin, libkf5xmlgui5 (>= 4.98.0), libphonon4qt5-4 (>= 4:4.8.0), libqt5core5a (>= 5.9.0~beta), libqt5dbus5 (>= 5.6.1~), libqt5gui5 (>= 5.7.0), libqt5widgets5 (>= 5.6.1~), libqt5xml5 (>= 5.6.1~), libstdc++6 (>= 4.5), phonon4qt5
Depends: kio, libc6 (>= 2.14), libcfitsio5 (>= 3.390~), libexiv2-14 (>= 0.25), libgcc1 (>= 1:3.0), libjpeg8 (>= 8c), libkf5activities5 (>= 4.96.0), libkf5baloo5 (>= 5.3.0+git20150512), libkf5completion5 (>= 4.97.0), libkf5configcore5 (>= 4.98.0), libkf5configgui5 (>= 4.97.0), libkf5configwidgets5 (>= 4.96.0), libkf5coreaddons5 (>= 4.100.0), libkf5filemetadata3 (>= 5.1.0.1), libkf5i18n5 (>= 4.97.0), libkf5iconthemes5 (>= 4.96.0), libkf5itemmodels5 (>= 4.96.0), libkf5itemviews5 (>= 4.96.0), libkf5jobwidgets5 (>= 4.96.0), libkf5kdcraw5 (>= 4.12.3), libkf5kiocore5 (>= 5.44.0), libkf5kiofilewidgets5 (>= 5.41.0), libkf5kiowidgets5 (>= 5.24.0), libkf5kipi32.0.0 (>= 16.04.0), libkf5notifications5 (>= 4.96.0), libkf5parts5 (>= 4.96.0), libkf5service-bin, libkf5service5 (>= 4.96.0), libkf5solid5 (>= 4.97.0), libkf5widgetsaddons5 (>= 4.96.0), libkf5xmlgui-bin, libkf5xmlgui5 (>= 4.98.0), liblcms2-2 (>= 2.2+git20110628), libphonon4qt5-4 (>= 4:4.8.0), libpng16-16 (>= 1.6.2-1), libqt5core5a (>= 5.9.0~beta), libqt5gui5 (>= 5.8.0), libqt5opengl5 (>= 5.6.1~), libqt5printsupport5 (>= 5.6.1~), libqt5svg5 (>= 5.6.0~beta), libqt5widgets5 (>= 5.6.1~), libqt5x11extras5 (>= 5.6.0), libstdc++6 (>= 5.2), libx11-6, phonon4qt5
Depends: libc6 (>= 2.14), libkf5balooengine5, libkf5configcore5 (>= 4.97.0), libkf5coreaddons5 (>= 4.99.0), libkf5filemetadata3 (>= 5.9.0), libkf5solid5 (>= 4.97.0), libqt5core5a (>= 5.9.0~beta), libqt5dbus5 (>= 5.6.1~), libstdc++6 (>= 4.1.1)
Depends: baloo-kf5, libc6 (>= 2.14), libkf5filemetadata3 (>= 5.1.0.1), libqt5core5a (>= 5.9.0~beta), libstdc++6 (>= 4.1.1)
Depends: baloo-kf5
Depends: libkf5baloowidgets-data (= 4:17.12.3-0ubuntu1), libkf5filemetadata-bin, kio, libc6 (>= 2.14), libkf5baloo5 (>= 5.3.0+git20150512), libkf5configcore5 (>= 4.97.0), libkf5configgui5 (>= 4.97.0), libkf5coreaddons5 (>= 4.97.0), libkf5filemetadata3 (>= 5.19.0), libkf5i18n5 (>= 4.97.0), libkf5kiocore5 (>= 4.96.0), libkf5widgetsaddons5 (>= 4.96.0), libqt5core5a (>= 5.9.0~beta), libqt5gui5 (>= 5.7.0), libqt5widgets5 (>= 5.6.1~), libstdc++6 (>= 4.1.1)
hintzy@hintzy-System-Product-Name:~$
ça vous inspire ???