Ubuntu-fr

Avec noyau 4.15.0-153-generic
=============================
poun@Dell-Inspiron-910:~$ systemd-analyze time
Startup finished in 7.327s (kernel) + 24.763s (userspace) = 32.091s
graphical.target reached after 24.693s in userspace
poun@Dell-Inspiron-910:~$

Avec noyau 4.15.0-154-generic
=============================
poun@Dell-Inspiron-910:~$ systemd-analyze time
Startup finished in 39.316s (kernel) + 25.061s (userspace) = 1min 4.378s
graphical.target reached after 25.008s in userspace
poun@Dell-Inspiron-910:~$ 

Avec noyau 4.15.0-153-generic
=============================
poun@Dell-Inspiron-910:~$ sudo systemd-analyze critical-chain
[sudo] Mot de passe de poun : 
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.
graphical.target @25.388s
└─multi-user.target @25.388s
  └─hddtemp.service @25.233s +153ms
    └─network-online.target @25.166s
      └─NetworkManager-wait-online.service @11.463s +13.689s
        └─NetworkManager.service @8.083s +2.701s
          └─dbus.service @7.206s
            └─basic.target @7.002s
              └─paths.target @6.986s
                └─cups.path @6.968s
                  └─sysinit.target @6.626s
                    └─systemd-backlight@backlight:intel_backlight.service @14.151s +122ms
                      └─system-systemd\x2dbacklight.slice @13.185s
                        └─system.slice @1.085s
                          └─-.slice @879ms

Avec noyau 4.15.0-154-generic
=============================
poun@Dell-Inspiron-910:~$ sudo systemd-analyze critical-chain
[sudo] Mot de passe de poun : 
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.
graphical.target @25.008s
└─multi-user.target @25.002s
  └─hddtemp.service @24.818s +182ms
    └─network-online.target @24.763s
      └─NetworkManager-wait-online.service @8.992s +15.759s
        └─NetworkManager.service @6.844s +1.976s
          └─dbus.service @6.692s
            └─basic.target @6.332s
              └─sockets.target @6.319s
                └─acpid.socket @6.306s
                  └─sysinit.target @6.150s
                    └─systemd-backlight@backlight:intel_backlight.service @13.695s +26ms
                      └─system-systemd\x2dbacklight.slice @13.161s
                        └─system.slice @921ms
                          └─-.slice @838ms

poun@Dell-Inspiron-910:~$ journalctl --no-pager -b -p err
-- Logs begin at Wed 2021-09-01 22:17:28 CEST, end at Sat 2021-09-04 16:55:35 CEST. --
sept. 04 16:53:43 Dell-Inspiron-910 kernel: dell_smm_hwmon: unable to get SMM Dell signature
sept. 04 16:53:52 Dell-Inspiron-910 wpa_supplicant[499]: bgscan simple: Failed to enable signal strength monitoring
sept. 04 16:54:15 Dell-Inspiron-910 pulseaudio[902]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
poun@Dell-Inspiron-910:~$