새로 만든 사용자가있는 Xubuntu 16.04 완전 패치 시스템은 잠금 장치를 수동으로 활성화했는지 또는 시간 초과를 통해 활성화했는지에 상관없이 라이트 로커를 사용하여 화면을 잠그면 잠금 해제 할 수 없습니다. 화면이 검은 색으로 남아 올바른 암호 입력에 (그러나 전원을)

tty1에서 라이트 로커를 죽이면 바탕 화면이 드러나고 결과적으로 더 이상의 잠금이 방지됩니다.

시도한 단계 :

• 라이트 로커 설정 및 전원 설정에서 잠금 활성화 / 비활성화 (변경 없음)
• 라이트 로커 대신 xscreensaver 사용 (작동)
• 문제가 뚜껑을 멈추거나 닫는 것과 관련이 있는지 테스트
  • 그러나 일시 중단 후 검은 화면에 This session is locked: You will be redirected to the unlock dialog automatically in a few seconds메시지가 표시됩니다. 리디렉션이 발생하지 않습니다.
• 퍼지 + 재설치 ​​된 lightdm, 라이트 로커 및 ​​xubuntu- 기본 설정
• 사용하는 loginctl unlock-session것은 효과가 없다
• systemctl status lightdm kwallet pam 모듈이 누락되었다는 메시지 만 표시합니다 (무해하고 예상 됨).
• “작동 했음”과 “더 이상 작동하지 않음”(의심하지 않음) 및 부팅 된 이전 커널 (문제가 지속됨) 사이의 업그레이드를 위해 dpkg 로그를 검사했습니다.
• 세션에서 시작한 라이트 로커와 수동으로 시작된 라이트 로커 간의 비교 동작 (차이 없음)
• 그룹 nopasswdlogin그룹 에 사용자 추가 (암호 입력 후뿐만 아니라 잠금 직후 검은 화면이 나타남)

이 문제를 해결하는 방법을 알아내는 데 유용한 추가 단계는 무엇입니까?

디버깅 로그 :

$ export LC_ALL=C; light-locker --debug & ( sleep 5; echo "## Locking now"; light-locker-command --lock; sleep 10; echo "### 10 seconds have passed - entering password now"; sleep 10; echo "### 10 more seconds have passwd - Killing"; killall light-locker; sleep 5; echo "### Killed now" )
[1] 23463
[gs_debug_init] gs-debug.c:106 (00:08:32):   Debugging enabled
[main] light-locker.c:142 (00:08:32):    initializing light-locker 1.7.0
[main] light-locker.c:144 (00:08:32):    lock after screensaver 10
[main] light-locker.c:145 (00:08:32):    late locking 0
[main] light-locker.c:146 (00:08:32):    lock on suspend 1
[main] light-locker.c:147 (00:08:32):    lock on lid 0
[main] light-locker.c:148 (00:08:32):    idle hint 1
[query_session_id] gs-listener-dbus.c:2088 (00:08:32):   org.freedesktop.login1.NoSessionForPID raised:
 PID 23463 does not belong to any known session


[init_session_id] gs-listener-dbus.c:2180 (00:08:32):    Got session-id: (null)
[query_sd_session_id] gs-listener-dbus.c:2164 (00:08:32):    Couldn't determine our own sd session id: No such process
[init_session_id] gs-listener-dbus.c:2185 (00:08:32):    Got sd-session-id: (null)
[init_seat_path] gs-listener-dbus.c:2262 (00:08:32):     Got seat: /org/freedesktop/DisplayManager/Seat0
[gs_listener_delay_suspend] gs-listener-dbus.c:449 (00:08:32):   Delay suspend
[gs_listener_x11_acquire] gs-listener-x11.c:172 (00:08:32):  ScreenSaver Registered
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:32):    obj_path=/org/freedesktop/DBus interface=org.freedesktop.DBus method=NameAcquired destination=:1.316
## Locking now
[gs_grab_grab_root] gs-grab-x11.c:647 (00:08:37):    Grabbing the root window
[gs_grab_get_keyboard] gs-grab-x11.c:153 (00:08:37):     Grabbing keyboard widget=E3
[gs_grab_get_mouse] gs-grab-x11.c:213 (00:08:37):    Grabbing mouse widget=E3
[gs_manager_create_windows_for_screen] gs-manager.c:548 (00:08:37):  Creating 1 windows for screen 0
[gs_manager_create_window_for_monitor] gs-manager.c:324 (00:08:37):  Creating window for monitor 0 [0,0] (1600x900)
[update_geometry] gs-window-x11.c:197 (00:08:37):    got geometry for monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:210 (00:08:37):    using geometry for monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:197 (00:08:37):    got geometry for monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:210 (00:08:37):    using geometry for monitor 0: x=0 y=0 w=1600 h=900
[gs_window_move_resize_window] gs-window-x11.c:243 (00:08:37):   Move and/or resize window on monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:197 (00:08:37):    got geometry for monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:210 (00:08:37):    using geometry for monitor 0: x=0 y=0 w=1600 h=900
[gs_window_move_resize_window] gs-window-x11.c:243 (00:08:37):   Move and/or resize window on monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:197 (00:08:37):    got geometry for monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:210 (00:08:37):    using geometry for monitor 0: x=0 y=0 w=1600 h=900
[gs_window_move_resize_window] gs-window-x11.c:243 (00:08:37):   Move and/or resize window on monitor 0: x=0 y=0 w=1600 h=900
[gs_manager_timed_switch] gs-manager.c:445 (00:08:37):   Start switch to greeter timer
[gs_window_xevent] gs-window-x11.c:369 (00:08:37):   not raising our windows
[window_map_event_cb] gs-manager.c:233 (00:08:37):   Handling window map_event event
[gs_listener_resume_suspend] gs-listener-dbus.c:513 (00:08:37):  Resume suspend: fd=14
[manager_maybe_grab_window] gs-manager.c:204 (00:08:37):     Moving grab to 0x5595f8d5a290
[gs_grab_move_keyboard] gs-grab-x11.c:450 (00:08:37):    Moving keyboard grab from E3 to 3A0000C
[gs_grab_move_keyboard] gs-grab-x11.c:457 (00:08:37):    *** doing X server grab
[gs_grab_release_keyboard] gs-grab-x11.c:279 (00:08:37):     Ungrabbing keyboard
[gs_grab_get_keyboard] gs-grab-x11.c:153 (00:08:37):     Grabbing keyboard widget=3A0000C
[gs_grab_move_keyboard] gs-grab-x11.c:479 (00:08:37):    *** releasing X server grab
[gs_grab_move_mouse] gs-grab-x11.c:395 (00:08:37):   Moving pointer grab from E3 to 3A0000C
[gs_grab_move_mouse] gs-grab-x11.c:402 (00:08:37):   *** doing X server grab
[gs_grab_release_mouse] gs-grab-x11.c:320 (00:08:37):    Ungrabbing pointer
[gs_grab_get_mouse] gs-grab-x11.c:213 (00:08:37):    Grabbing mouse widget=3A0000C
[gs_grab_move_mouse] gs-grab-x11.c:425 (00:08:37):   *** releasing X server grab
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:37):    obj_path=/org/freedesktop/login1 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[update_geometry] gs-window-x11.c:197 (00:08:37):    got geometry for monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:210 (00:08:37):    using geometry for monitor 0: x=0 y=0 w=1600 h=900
[gs_window_move_resize_window] gs-window-x11.c:243 (00:08:37):   Move and/or resize window on monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:197 (00:08:37):    got geometry for monitor 0: x=0 y=0 w=1600 h=900
[update_geometry] gs-window-x11.c:210 (00:08:37):    using geometry for monitor 0: x=0 y=0 w=1600 h=900
[gs_window_move_resize_window] gs-window-x11.c:243 (00:08:37):   Move and/or resize window on monitor 0: x=0 y=0 w=1600 h=900
[gs_listener_send_lock_session] gs-listener-dbus.c:180 (00:08:38):   Send lock session
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:38):    obj_path=(null) interface=(null) method=(null) destination=:1.316
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/session/c5 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/session/c12 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/seat/seat0 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
process 23463: arguments to dbus_message_new_method_call() were incorrect, assertion "path != NULL" failed in file ../../dbus/dbus-message.c line 1340.
This is normally a bug in some application using the D-Bus library.
[query_session_active] gs-listener-dbus.c:1124 (00:08:39):   Couldn't allocate the dbus message
[listener_dbus_handle_system_message] gs-listener-dbus.c:1361 (00:08:39):    systemd notified ActiveSession 0
[listener_session_switched_cb] gs-monitor.c:298 (00:08:39):  Session switched: 0
[gs_manager_stop_switch] gs-manager.c:456 (00:08:39):    Stop switch to greeter timer
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/seat/seat0 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/session/c12 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/user/_108 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/seat/seat0 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
process 23463: arguments to dbus_message_new_method_call() were incorrect, assertion "path != NULL" failed in file ../../dbus/dbus-message.c line 1340.
This is normally a bug in some application using the D-Bus library.
[query_session_active] gs-listener-dbus.c:1124 (00:08:39):   Couldn't allocate the dbus message
[listener_dbus_handle_system_message] gs-listener-dbus.c:1361 (00:08:39):    systemd notified ActiveSession 0
[listener_session_switched_cb] gs-monitor.c:298 (00:08:39):  Session switched: 0
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:39):    obj_path=/org/freedesktop/login1/session/c5 interface=org.freedesktop.login1.Session method=Lock destination=(null)
### 10 seconds have passed - entering password now
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:51):    obj_path=/org/freedesktop/login1/session/c5 interface=org.freedesktop.login1.Session method=Unlock destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:51):    obj_path=/org/freedesktop/login1/session/c13 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:51):    obj_path=/org/freedesktop/login1/session/c5 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
[listener_dbus_handle_system_message] gs-listener-dbus.c:1330 (00:08:51):    obj_path=/org/freedesktop/login1/seat/seat0 interface=org.freedesktop.DBus.Properties method=PropertiesChanged destination=(null)
process 23463: arguments to dbus_message_new_method_call() were incorrect, assertion "path != NULL" failed in file ../../dbus/dbus-message.c line 1340.
This is normally a bug in some application using the D-Bus library.
[query_session_active] gs-listener-dbus.c:1124 (00:08:51):   Couldn't allocate the dbus message
[listener_dbus_handle_system_message] gs-listener-dbus.c:1361 (00:08:51):    systemd notified ActiveSession 0
[listener_session_switched_cb] gs-monitor.c:298 (00:08:51):  Session switched: 0
[xroot_filter] gs-listener-x11.c:124 (00:08:52):     ScreenSaver stopped
### 10 more seconds have passwd - Killing
### Killed now

이것을 알려진 정상 시스템으로 나누면 다음과 같은 결과가 나타납니다.

$ comm -3 <(grep -iv grab good | sed 's/[0-9:]\+/[NN]/g;s/[ \t]\+/ /g' | sort) <(grep -iv grab bad | sed 's/[0-9:]\+/[NN]/g;s/[ \t]\+/ /g' | sort) | head -n2
[init_session_id] gs-listener-dbus.c[NN] ([NN])[NN] Got session-id[NN] (null)
[init_session_id] gs-listener-dbus.c[NN] ([NN])[NN] Got session-id[NN] /org/freedesktop/login[NN]/session/c[NN]

실제로 세션 설정에 대해 매우 어색한 것으로 보입니다.

$ loginctl session-status
Could not get properties: No such process

답변

$ file /sbin/init
/sbin/init: symbolic link to /lib/systemd/systemd
$ mount | grep proc
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime,hidepid=2,gid=1337)

$ sudo mount -o remount,hidepid=0 /proc
 # and fix /etc/fstab accordingly

$ addgroup showpid
$ adduser myuser showpid
$ sudo mount -o remount,hidepid=2,gid=showpid /proc
 # and fix /etc/fstab accordingly
$ echo -e '[Service]\nSupplementaryGroups=showpid' | sudo tee /etc/systemd/system/systemd-logind.service.d/10-showpid.conf
$ sudo systemctl daemon-reload
$ sudo systemctl restart systemd-logind