Oui rien n'as changer j'ai effectuer un :
sudo systemctl restart upower.service
Job for upower.service failed because the control process exited with error code.
See "systemctl status upower.service" and "journalctl -xe" for details.
et j'ai aussi reboot mon systeme
sudo systemctl status upower.service
● upower.service - Daemon for power management
Loaded: loaded (/usr/lib/systemd/system/upower.service; disabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Wed 2019-06-05 19:37:29 CEST; 3min 24s ago
Docs: man:upowerd(8)
Process: 2814 ExecStart=/usr/libexec/upowerd (code=exited, status=226/NAMESPACE)
Main PID: 2814 (code=exited, status=226/NAMESPACE)
Jun 05 19:37:29 aurel-laptop systemd[1]: upower.service: Service RestartSec=100ms expired, scheduling restart.
Jun 05 19:37:29 aurel-laptop systemd[1]: upower.service: Scheduled restart job, restart counter is at 5.
Jun 05 19:37:29 aurel-laptop systemd[1]: Stopped Daemon for power management.
Jun 05 19:37:29 aurel-laptop systemd[1]: upower.service: Start request repeated too quickly.
Jun 05 19:37:29 aurel-laptop systemd[1]: upower.service: Failed with result 'exit-code'.
Jun 05 19:37:29 aurel-laptop systemd[1]: Failed to start Daemon for power management.
en effectuant la commande
journalctl -xe
et j'ai noter plusieur erreur :
systemd[1] : Failed to start Daemon for power management.
systemd[2811]: upower.service: Failed to set up mount namespacing: Permission denied
systemd[2811]: upower.service: Failed at step NAMESPACE spawning /usr/libexec/upowerd: Permission denied