Debian
vncserver 空白顯示 – debian 9 guest VM w/ubuntu 16 host
概述
我的目標是在 Ubuntu 16.04 LTS(帶有桌面環境)上設置對使用 virt-manager 建構的 Debian 9.5 VM 來賓的 VNC 訪問。
我已將 /etc/vnc/xstartup 配置為使用 gnome-session(詳細資訊如下),並設置了在 /lib/systemd/system/{service-name}.service 中定義的 systemd 服務,它利用 /usr 中的腳本/local/bin/{service-script} 直接呼叫 /usr/bin/vncserver 執行停止和啟動操作。
目前的行為是當我從 LAN 上的另一台設備登錄 VNC 伺服器實例時出現一個空白螢幕,我想了解為什麼此配置不起作用以及更多關於 Ubuntu/Debian 桌面環境的資訊包層次結構。
夫妻注意事項:
- 這個確切的配置使用執行虛擬框的 Windows 主機工作。
- 這裡的所有設置都是我在網上找到的適用於我的 Windows 主機的東西(有效),所以請指出我可能不完全理解的多餘或無用的配置
- 有問題的 {user} 不在 sudoers 列表中,但它是圖形安裝期間創建的第一個使用者
- 狀態輸出中的 gnome-settings 錯誤對我來說似乎很可疑,但我對這些東西知之甚少,無法理解它。(也許其他人可以?)
文件列表和調試
系統
<user>@VPS:~$ ls -l /lib/systemd/system/<srvc-name>.service -rw-r--r-- 1 root root 268 Aug 14 08:46 /lib/systemd/system/<srvc-name>.service [Unit] Description=Manage VNC Server [Service] Type=forking ExecStart=/usr/local/bin/<srvc-script> start ExecStop=/usr/local/bin/<srvc-script> stop ExecReload=/usr/local/bin/<srvc-script> restart User=<user> [Install] WantedBy=multi-user.target
服務腳本
<user>@VPS:~$ ls -l /usr/local/bin/<srvc-script> -rwxr-xr-x 1 root staff 297 Aug 14 09:01 /usr/local/bin/<srvc-script> #!/bin/bash PATH="$PATH:/usr/bin/" DISPLAY="2" DEPTH="24" GEOMETRY="1280x1024" OPTIONS="-depth ${DEPTH} -geometry ${GEOMETRY} :${DISPLAY} -localhost no" case "$1" in start) /usr/bin/vncserver ${OPTIONS} ;; stop) /usr/bin/vncserver -kill :${DISPLAY} ;; restart) $0 stop $0 start ;; esac exit 0
啟動
<user>@VPS:~$ ls -l /etc/vnc/xstartup -rwxr-xr-x 1 root root 155 Aug 14 13:52 /etc/vnc/xstartup #!/bin/sh unset SESSION_MANAGER unset DBUS_SESSION_BUS_ADDRESS xrdb $HOME/.Xresources xsetroot -solid grey export XKL_XMODMAP_DISABLE=1 gnome-session &
sudo 服務 {srvc-name} 狀態
● <srvc-name>.service - Manage VNC Server Loaded: loaded (/lib/systemd/system/<srvc-name>.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2018-08-14 14:01:22 PDT; 1min 9s ago Process: 419 ExecStart=/usr/local/bin/<srvc-script> start (code=exited, status=0/SUCCESS) Tasks: 151 (limit: 4915) CGroup: /system.slice/<srvc-name>.service ├─487 /usr/bin/Xtigervnc :2 -desktop VPS:2 (<user>) -auth /home/<user>/.Xauthority -geometry 1280x1024 -depth 24 -rfbwait 30000 -rfbauth /home/<user>/.vnc/passwd -rfbport 5902 -pn -SecurityTypes VncAuth,TLSVnc ├─498 /usr/bin/perl /usr/bin/vncserver -depth 24 -geometry 1280x1024 :2 -localhost no ├─499 /bin/sh /etc/X11/Xvnc-session ├─501 vncconfig -iconic ├─502 /usr/lib/gnome-session/gnome-session-binary ├─540 dbus-launch --autolaunch 5e4be6148690420bb12518bb1b2bf070 --binary-syntax --close-stderr ├─554 /usr/bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session ├─612 /usr/bin/dbus-launch --exit-with-session --sh-syntax ├─615 /usr/bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session ├─658 /usr/bin/ssh-agent x-session-manager ├─674 /usr/lib/at-spi2-core/at-spi-bus-launcher ├─679 /usr/bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork --print-address 3 ├─681 /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session ├─689 /usr/lib/gvfs/gvfsd ├─694 /usr/lib/gvfs/gvfsd-fuse /home/<user>/.gvfs -f -o big_writes ├─718 /usr/bin/gnome-keyring-daemon --start --components=secrets ├─736 /usr/lib/gnome-settings-daemon/gnome-settings-daemon ├─757 /usr/bin/pulseaudio --start --log-target=syslog ├─780 /usr/lib/gnome-settings-daemon/gsd-printer ├─793 /usr/lib/evolution/evolution-alarm-notify ├─798 /usr/lib/tracker/tracker-store ├─799 /usr/lib/tracker/tracker-miner-user-guides ├─800 /usr/lib/tracker/tracker-miner-apps ├─802 /usr/lib/tracker/tracker-miner-fs ├─803 /usr/lib/tracker/tracker-extract ├─830 /usr/lib/evolution/evolution-source-registry ├─836 /usr/lib/gnome-online-accounts/goa-daemon ├─845 /usr/lib/telepathy/mission-control-5 ├─846 /usr/lib/gnome-online-accounts/goa-identity-service ├─855 /usr/lib/evolution/evolution-calendar-factory ├─867 /usr/lib/evolution/evolution-calendar-factory-subprocess --factory contacts --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx855x2 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/Calendar/855/2 ├─869 /usr/lib/gvfs/gvfs-udisks2-volume-monitor ├─886 /usr/lib/dconf/dconf-service ├─891 /usr/lib/evolution/evolution-addressbook-factory ├─892 /usr/lib/evolution/evolution-calendar-factory-subprocess --factory local --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx855x3 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/Calendar/855/3 ├─917 /usr/lib/gvfs/gvfs-gphoto2-volume-monitor ├─923 /usr/lib/evolution/evolution-addressbook-factory-subprocess --factory local --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.AddressBookx891x2 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/AddressBook/891/2 ├─932 /usr/lib/gvfs/gvfs-afc-volume-monitor ├─944 /usr/lib/gvfs/gvfs-goa-volume-monitor └─949 /usr/lib/gvfs/gvfs-mtp-volume-monitor Aug 14 14:01:21 VPS pulseaudio[776]: [pulseaudio] pid.c: Daemon already running. Aug 14 14:01:21 VPS gnome-settings-[736]: Failed to StopUnit service: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 Aug 14 14:01:21 VPS gnome-settings-[736]: Failed to StopUnit service: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 Aug 14 14:01:21 VPS gnome-settings-[736]: Failed to StopUnit service: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 Aug 14 14:01:21 VPS gnome-settings-[736]: g_task_return_error: assertion 'error != NULL' failed Aug 14 14:01:21 VPS gnome-session-binary[502]: Entering running state Aug 14 14:01:21 VPS goa-daemon[836]: goa-daemon version 3.22.5 starting Aug 14 14:01:22 VPS org.gtk.vfs.AfcVolumeMonitor[615]: Volume monitor alive Aug 14 14:01:22 VPS systemd[1]: Started Manage VNC Server. Aug 14 14:01:45 VPS pulseaudio[757]: [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.
終於想出足以解決任何好奇的人的這種情況。
- 我的其他 VM 設置在具有 sudo 權限的使用者名下執行,而對於這個使用者,該使用者不在 sudoers 列表中。
- 我試圖在 win10 virutalbox 設置上與 deb9.4 來賓一起使用,但遇到了同樣的問題。
- 我更改了服務腳本權限,以便非 sudo 使用者可以執行它並且一切都開始工作 - 狀態輸出中的那些 gnome-settings 錯誤保留在我新工作的設置中。
簡而言之,除了服務腳本權限問題之外,我對此並不太了解。一些額外的輸入將有助於澄清我認為的整體情況。