遇到问题了；我有一台服务器，我已经使用X11转发很长时间了，没有任何问题。现在;奇怪的事情发生了。
如果我使用 登录 ssh -X -Y user@device，则连接成功。如果 xterm/xeyes 启动，相应的窗口会出现在我的计算机上。
如果我启动 emacs 或 gwenview，什么也不会发生......
运行ssh -vvv -X -Y user@device并启动 xterm，这会被记录下来。
debug3: receive packet: type 90
debug1: client_input_channel_open: ctype x11 rchan 3 win 65536 max 16384
debug1: client_request_x11: request from ::1 34772
debug2: fd 8 setting O_NONBLOCK
debug3: fd 8 is O_NONBLOCK
debug1: channel 1: new [x11]
debug1: confirm x11
debug3: send packet: type 91
debug2: channel 1: rcvd adjust 44420
debug2: channel 1: rcvd adjust 49152
debug2: channel 1: rcvd adjust 49152
然后 xterm 出现。
启动 emacs 会记录此信息；
debug3: receive packet: type 90
debug1: client_input_channel_open: ctype x11 rchan 3 win 65536 max 16384
debug1: client_request_x11: request from ::1 34776
debug2: fd 8 setting O_NONBLOCK
debug3: fd 8 is O_NONBLOCK
debug1: channel 1: new [x11]
debug1: confirm x11
debug3: send packet: type 91
debug3: receive packet: type 96
debug2: channel 1: rcvd eof
debug2: channel 1: output open -> drain
debug2: channel 1: obuf empty
debug2: channel 1: close_write
debug2: channel 1: output drain -> closed
debug1: channel 1: FORCE input drain
debug2: channel 1: ibuf empty
debug2: channel 1: send eof
debug3: send packet: type 96
debug2: channel 1: input drain -> closed
debug2: channel 1: send close
debug3: send packet: type 97
debug3: channel 1: will not send data after close
debug3: receive packet: type 90
debug1: client_input_channel_open: ctype x11 rchan 4 win 65536 max 16384
debug1: client_request_x11: request from ::1 34778
debug2: fd 9 setting O_NONBLOCK
debug3: fd 9 is O_NONBLOCK
debug1: channel 2: new [x11]
debug1: confirm x11
debug3: send packet: type 91
debug3: channel 1: will not send data after close
debug3: channel 1: will not send data after close
debug3: receive packet: type 97
debug2: channel 1: rcvd close
debug3: channel 1: will not send data after close
debug2: channel 1: is dead
debug2: channel 1: garbage collecting
debug1: channel 1: free: x11, nchannels 3
debug3: channel 1: status: The following connections are open:
#0 client-session (t4 r0 i0/0 o0/0 fd 5/6 cc -1)
#1 x11 (t4 r3 i3/0 o3/0 fd 8/8 cc -1)
#2 x11 (t7 r4 i0/0 o0/0 fd 9/9 cc -1)
然后再重复两次，然后就什么也没有了。
Emacs 是在 x 支持下编译的。
此时我一片空白； x11 转发有效（xterm 有效），但 emacs/gwenview 无效。 :(
是 SSH、X11 还是其他错误？
BR/帕特里克
答案1
正如@dirkt 所指出的，很可能是所使用的组件之间的版本不匹配。解决方案是删除所有基于 X11 和 QT 的应用程序，然后重新安装它们。
如果能生产一些原木就好了。