Synaptic 无法以 root 身份启动

Synaptic 无法以 root 身份启动

当我尝试从应用程序管理器启动 Synaptic 时,它要求我输入密码,我输入了密码(我再三检查)然后软件关闭。

当我尝试用它启动时,sudo它不起作用,每次我尝试用su终端登录时,Authentication failure我都会得到正确的密码。怎么了?

输出sudo -H synaptic

No protocol specified
Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused

(synaptic:32380): Gtk-WARNING **: cannot open display: :0

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