18.04 启动正常,但一旦出现锁定屏幕,我就无法解锁

18.04 启动正常,但一旦出现锁定屏幕,我就无法解锁

昨天开始;系统正在运行所有应该运行的后台应用程序,但交互使用的唯一方法是完全关闭电源并重新启动。然后屏幕、键盘和鼠标可以正常工作,但如果我离开 10 分钟,屏幕就会休眠,我就无法通过锁定屏幕。通常,ESC 键或鼠标单击会提示登录,但现在不会了。

查看 syslog 时,发现有大量 gdm-x-session 和 gnome-shell 错误。我不知道这是否相关,但重启后第一个错误如下:

dbus-daemon[1086]: [session uid=125 pid=1086] Activating service name='org.gnome.ScreenSaver' requested by ':1:12' (uid=125 pid=1088 comm="/usr/lib/gnome-session/gnome-session-binary --auto" label="unconfined")
org.gnome.ScreenSaver[1086]: Unable to init server: Could not connect: Connection refused
gnome-screensav[1094]: Cannot open display:
dbus-daemon[1086]: [session uid=125 pid=1086] Activated service 'org.gnome.ScreenSaver' failed: Process org.gnome.ScreenSaver exited with status 1
gnome-session[1088]: gnome-session-binary[1088]: CRITICAL: Unable to create a DBus proxy for GnomeScreenSaver: Error calling StartServiceByName for org.gnome.ScreenSaver: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.gnome.ScreenSaver exited with status 1

等等。

当我尝试重新唤醒桌面时,此消息被写入日志:

gnome-shell[1497]: JS ERROR: Exception in callback for signal: activate: Error: Error invoking IBus.set_global_engine_async: Expected function for callback argument callback, got undefined

有什么建议我可以在哪里/如何找出问题所在并修复它?!

谢谢,T

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