jose@jose-N53SM:~$ plasma-discover
adding empty sources model QStandardItemModel(0x55d264fdde80)
no packages for "org.kde.plasma.quicklaunch"
no packages for "org.kde.plasma.systemloadviewer"
no packages for "org.kde.plasma.showActivityManager"
no packages for "org.kde.plasma.grouping"
no packages for "org.kde.plasma.diskquota"
no packages for "org.kde.plasma.timer"
no packages for "org.kde.kscreen"
no packages for "org.kde.plasma.appmenu"
no packages for "org.kde.plasma.kimpanel"
no packages for "org.cockpit_project.cockpit"
no packages for "im.riot.webapp"
invalid kns backend! "/usr/share/knsrcfiles/ksysguard.knsrc" because: "Config group not found! Check your KNS3 installation."
no org.freedesktop.Platform.GL.default
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.GL.default.desktop"
no org.freedesktop.Platform.VAAPI.Intel
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.VAAPI.Intel.desktop"
no org.freedesktop.Platform.VAAPI.Intel
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.VAAPI.Intel.desktop"
no org.freedesktop.Platform.html5-codecs
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.html5-codecs.desktop"
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = plasma-discover path = /usr/bin pid = 8243
KCrash: Arguments: /usr/bin/plasma-discover 
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0
QSocketNotifier: Invalid socket 39 and type 'Read', disabling...
QSocketNotifier: Invalid socket 94 and type 'Read', disabling...
QSocketNotifier: Invalid socket 55 and type 'Read', disabling...
QSocketNotifier: Invalid socket 62 and type 'Read', disabling...
QSocketNotifier: Invalid socket 69 and type 'Read', disabling...
QSocketNotifier: Invalid socket 42 and type 'Read', disabling...
QSocketNotifier: Invalid socket 60 and type 'Read', disabling...
QSocketNotifier: Invalid socket 53 and type 'Read', disabling...
QSocketNotifier: Invalid socket 54 and type 'Read', disabling...
QSocketNotifier: Invalid socket 64 and type 'Read', disabling...
QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
QSocketNotifier: Invalid socket 34 and type 'Read', disabling...
QSocketNotifier: Invalid socket 12 and type 'Read', disabling...

[1]+  Detenido                plasma-discover
jose@jose-N53SM:~$ QSocketNotifier: Invalid socket 51 and type 'Read', disabling...
QSocketNotifier: Invalid socket 95 and type 'Read', disabling...
QSocketNotifier: Invalid socket 93 and type 'Read', disabling...