Ubuntu 已请求X11转发，但未设置显示

我想在连接到Jetson Xavier nx的macOS上启用x11转发。但是，在连接时：

sudo ssh -Xvvv id@host

连接成功建立。但在详细的日志中，我得到以下信息：

debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 52
debug1: Authentication succeeded (password).
Authenticated to proto1 ([192.168.1.106]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting no-more-sessions@openssh.com
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: exec
debug3: receive packet: type 80
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug3: receive packet: type 91
debug2: channel_input_open_confirmation: channel 0: callback start
debug1: X11 forwarding requested but DISPLAY not set
debug2: fd 4 setting TCP_NODELAY
debug3: ssh_packet_set_tos: set IP_TOS 0x48
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug3: send packet: type 98
debug1: Sending environment.
debug3: Ignored env TERM
debug3: Ignored env SSH_AUTH_SOCK
debug3: Ignored env PATH
debug1: Sending env LANG = en_US.UTF-8
debug2: channel 0: request env confirm 0
debug3: send packet: type 98
debug3: Ignored env HOME
debug3: Ignored env MAIL
debug3: Ignored env LOGNAME
debug3: Ignored env USER
debug3: Ignored env SHELL
debug3: Ignored env SUDO_COMMAND
debug3: Ignored env SUDO_USER
debug3: Ignored env SUDO_UID
debug3: Ignored env SUDO_GID
debug3: Ignored env __CF_USER_TEXT_ENCODING
debug2: channel 0: request shell confirm 1
debug3: send packet: type 98
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug2: channel 0: rcvd adjust 2097152
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0

为了使X11转发工作，必须在连接时设置显示变量。手动设置显示，如下所示：

export DISPLAY=http://localhost:22

---

也不行。如何启用X11转发？

当然，这里不应该有

http://

，我认为您的

:22

来自SSH端口，而不是您应该使用的X11显示号码。您在本地计算机上的显示几乎总是

：0.0

，如果您在计算机上

echo$DISPLAY

时，yoiu还没有看到这一点，则可能是出了问题

首先确保您可以单独在Mac上运行X11应用程序。您可能需要安装

尝试在不使用sudo的情况下运行；也许root不允许在Mac上与您的X11对话。另外，也可以在

xterm

窗口中尝试

ssh-X

（手动打开XQuartz时应该会打开，或者可以从其菜单启动），以确保它选择正确的显示

export DISPLAY=http://localhost:22