我有安装了 KDE 的 Debian，除了我最近的登录时间外，一切都很好。启动我的计算机没问题，没有特定的延迟，但是当我输入密码并按“Enter”键时，会出现黑屏和两分钟的延迟，然后启动画面出现并且会话正确启动。我试图为这 2 分钟的延迟找到解释，但我什么也没得到。
值得注意的是，我目前使用的是 M.2 SSD，这使得延迟对我来说非常不寻常。我尝试禁用启动屏幕，但没有改变任何内容。我尝试从 lightdm 切换到 sddm，但没有改变任何东西。
systemd-analyze似乎没有返回任何不寻常的东西。
Startup finished in 37.061s (firmware) + 6.377s (loader) + 4.699s (kernel) + 9.528s (userspace) = 57.666s
graphical.target reached after 9.489s in userspace
我安装了 KSystemLog，这是我登录时的日志。
2021-08-09 11:31 A.M. systemd Closed Sound System.
2021-08-09 11:31 A.M. systemd snapd.session-agent.socket: Succeeded.
2021-08-09 11:31 A.M. systemd Closed REST API socket for snapd user session agent.
2021-08-09 11:31 A.M. systemd Removed slice User Application Slice.
2021-08-09 11:31 A.M. systemd Reached target Shutdown.
2021-08-09 11:31 A.M. systemd systemd-exit.service: Succeeded.
2021-08-09 11:31 A.M. systemd Finished Exit the Session.
2021-08-09 11:31 A.M. systemd Reached target Exit the Session.
2021-08-09 11:31 A.M. systemd [email protected]: Succeeded.
2021-08-09 11:31 A.M. systemd Stopped User Manager for UID 117.
2021-08-09 11:31 A.M. systemd Stopping User Runtime Directory /run/user/117...
2021-08-09 11:31 A.M. systemd run-user-117.mount: Succeeded.
2021-08-09 11:31 A.M. systemd run-user-117.mount: Succeeded.
2021-08-09 11:31 A.M. systemd [email protected]: Succeeded.
2021-08-09 11:31 A.M. systemd Stopped User Runtime Directory /run/user/117.
2021-08-09 11:31 A.M. systemd Removed slice User Slice of UID 117.
2021-08-09 11:31 A.M. systemd user-117.slice: Consumed 1.303s CPU time.
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Activating service name='org.kde.KSplash' requested by ':1.9' (uid=1000 pid=2387 comm="/usr/bin/startplasma-x11 ")
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Successfully activated service 'org.kde.KSplash'
2021-08-09 11:33 A.M. dbus-daemon [system] Activating via systemd: service name='org.freedesktop.UPower' unit='upower.service' requested by ':1.63' (uid=1000 pid=2506 comm="/usr/bin/kded5 ")
2021-08-09 11:33 A.M. systemd Starting Daemon for power management...
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Activating service name='org.kde.ActivityManager' requested by ':1.16' (uid=1000 pid=2511 comm="/usr/bin/kwin_x11 ")
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Successfully activated service 'org.kde.ActivityManager'
2021-08-09 11:33 A.M. dbus-daemon [system] Successfully activated service 'org.freedesktop.UPower'
2021-08-09 11:33 A.M. systemd Started Daemon for power management.
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Activating via systemd: service name='org.kde.kglobalaccel' unit='plasma-kglobalaccel.service' requested by ':1.17' (uid=1000 pid=2561 comm="/usr/lib/x86_64-linux-gnu/libexec/kactivitymanager")
2021-08-09 11:33 A.M. systemd Created slice User Background Tasks Slice.
2021-08-09 11:33 A.M. systemd Starting KDE Global Shortcuts Server...
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Successfully activated service 'org.kde.kglobalaccel'
2021-08-09 11:33 A.M. systemd Started KDE Global Shortcuts Server.
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Activating service name='ca.desrt.dconf' requested by ':1.20' (uid=1000 pid=2506 comm="/usr/bin/kded5 ")
2021-08-09 11:33 A.M. dbus-daemon [session uid=1000 pid=2380] Successfully activated service 'ca.desrt.dconf'
答案1
每次我看到登录速度慢的问题时，都会归咎于 DNS。检查 /etc/resolv.conf 并确保其中的 IP 有效