Ubuntu 22.10 RDP 连接问题

Question

我决定用 Ubuntu 22.10 设置一个媒体盒，我知道它现在默认使用 Wayland。我习惯在 X11 上使用 VNC，因此在 Wayland 领域或使用 RDP 方面没有太多经验。

我正在尝试诊断使用 RDP 连接到我的 Ubuntu 22.10 媒体盒的问题。我已经使用“设置”应用中的 GUI 复选框设置了 RDP，并且昨天能够建立 RDP 会话，它在我需要的几个小时内运行良好，但是今天再次尝试时，它似乎现在不想工作了。

使用我的桌面（yoda.lan @ 10.1.1.2 使用 Arch Linux），通过 2 个 Cisco 路由器连接，我可以看到并 ping 我的媒体盒（threepio.lan @ 10.1.2.2 Ubuntu 22.10）没有问题。

从我的桌面对我的媒体盒进行端口扫描，我可以看到开放的 RDP 端口；

nc -vz 10.1.2.2 20-3400
threepio.lan [10.1.2.2] 22 (ssh) open
threepio.lan [10.1.2.2] 3389 (ms-wbt-server) open

因此我可以看到 ssh 和 RDP 端口已打开，我可以成功连接到 SSH 并登录，没有任何问题。我的两台机器上都没有启用防火墙，路由器上的访问列表对 LAN IP 是宽容的。

当我尝试使用 Remmina 将 RDP 会话连接到 Ubuntu 22.10 框时，屏幕出现黑屏一秒钟，看起来像是正在连接，但随后它消失了，我返回到主窗口。

我从调试日志中得到这个；

(DEBUG) - (rcw_map_event) - Mapping: RemminaConnectionWindow
(DEBUG) - (remmina_protocol_widget_map_event) - Calling plugin mapping function
(DEBUG) - (remmina_protocol_widget_open_connection_real) - Opening connection
(DEBUG) - (remmina_rdp_event_init) - Disable smooth scrolling is set to 0
(DEBUG) - (remmina_rdp_event_init) - Adding GDK_SMOOTH_SCROLL_MASK
(DEBUG) - (remmina_protocol_widget_open_connection_real) - Have SSH
(DEBUG) - (remmina_rdp_main) - RDP data path is /home/ewan/.local/share/remmina/RDP
(DEBUG) - (remmina_rdp_main) - Not using system proxy settings
(DEBUG) - (remmina_rdp_tunnel_init) - Tunnel init
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - SSH tunnel initialization…
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - Calling remmina_public_get_server_port
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - Calling remmina_public_get_server_port (tunnel)
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - server: 10.1.2.2, port: 3389
(DEBUG) - (remmina_rdp_tunnel_init) - protocol_plugin_start_direct_tunnel() returned [10.1.2.2]:3389
(DEBUG) - (remmina_rdp_tunnel_init) - Tunnel has been optionally initialized. Now connecting to 10.1.2.2:3389
(DEBUG) - (remmina_rdp_main) - gfx_h264_available: 1
(DEBUG) - (remmina_rdp_main) - Resolution set by the user: 804x1348
(DEBUG) - (remmina_rdp_main) - Resolution set after workarounds: 804x1348
(DEBUG) - (remmina_rdp_main) - proxy_type: (null)
(DEBUG) - (remmina_rdp_main) - proxy_username: (null)
(DEBUG) - (remmina_rdp_main) - proxy_password: (null)
(DEBUG) - (remmina_rdp_main) - proxy_hostname: (null)
(DEBUG) - (remmina_rdp_main) - proxy_port: 80
(DEBUG) - (remmina_rdp_main) - Network settings not set
(DEBUG) - (remmina_rdp_main) - rdp_keyboard_remapping_list: (null)
(DEBUG) - (remmina_rdp_main) - Log level set to to INFO
(DEBUG) - (remmina_rdp_post_connect) - bpp: 32
(DEBUG) - (remmina_rdp_post_connect) - CAIRO_FORMAT_RGB24
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel rdpdr has been opened
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel rdpsnd has been opened
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel cliprdr has been opened
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel drdynvc has been opened
(DEBUG) - (remmina_rdp_event_connected) - [2023-01-28T12:43:51.348942+11] - yoda.lan - ewan - Connected to 10.1.2.2 via RDP
(DEBUG) - (rco_on_connect) - Connect signal emitted
(DEBUG) - (rco_on_connect) - We save the last successful connection date
(DEBUG) - (remmina_file_state_last_success) - State file /home/ewan/.cache/remmina/group_rdp_quick-connect_10-1-2-2.remmina.state.
(DEBUG) - (remmina_file_state_last_success) - Last connection made on 20230128.
(DEBUG) - (rco_on_connect) - Saving credentials
(DEBUG) - (remmina_file_save) - Saving profile
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_store_password) - Password “password” saved for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina

(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “ssh_tunnel_password” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “gateway_password” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “ssh_tunnel_passphrase” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - Profile saved
(DEBUG) - (remmina_file_save) - Connection profile states saved
(DEBUG) - (remmina_network_monitor_status) - G_NETWORK_CONNECTIVITY_FULL
(DEBUG) - (rco_on_connect) - Trying to present the window
(DEBUG) - (remmina_rdp_event_on_focus_in) - Top level name is: RemminaConnectionWindow
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel Microsoft::Windows::RDS::DisplayControl has been opened
(DEBUG) - (remmina_rdp_cliprdr_get_client_format_list) - gp=0x560008fd2640 sending to server the following local clipboard content formats
(DEBUG) - (remmina_rdp_cliprdr_get_client_format_list) -      local clipboard format UTF8_STRING will be sent to remote as 13
(DEBUG) - (rf_auto_reconnect) - maxattempts from default: 20
(DEBUG) - (rf_auto_reconnect) - maxattempts from general preferences: 20
(DEBUG) - (rf_auto_reconnect) - maxattempts from general plugin: 0
(DEBUG) - (rf_auto_reconnect) - maxattempts set to: 20
(DEBUG) - (remmina_rdp_main_loop) - [2023-01-28T12:43:51.991448+11] - yoda.lan - ewan - Disconnected from 10.1.2.2 via RDP
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel rdpdr has been closed
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel rdpsnd has been closed
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel cliprdr has been closed
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel Microsoft::Windows::RDS::DisplayControl has been closed
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel drdynvc has been closed
(DEBUG) - (remmina_rdp_main_loop) - RDP client disconnected
(DEBUG) - (rco_on_disconnect) - Disconnect signal received on RemminaProtocolWidget
(DEBUG) - (remmina_file_save) - Saving profile
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_store_password) - Password “password” saved for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina

(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “ssh_tunnel_password” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “gateway_password” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “ssh_tunnel_passphrase” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - Profile saved
(DEBUG) - (remmina_file_save) - Connection profile states saved
(DEBUG) - (remmina_network_monitor_status) - G_NETWORK_CONNECTIVITY_FULL
(DEBUG) - (rco_on_disconnect) - Disconnected

我再次尝试使用具有 TRACE 日志级别的 SSH 隧道；

This window can help you find connection problems.
You can stop and start the logging at any moment using the On/Off switch.
The stats button (Ctrl+T), can be useful to gather system info you may share when reporting a bug.
There is more info about debugging Remmina on https://gitlab.com/Remmina/Remmina/-/wikis/Usage/Remmina-debugging
(DEBUG) - (rcw_map_event) - Mapping: RemminaConnectionWindow
(DEBUG) - (remmina_protocol_widget_map_event) - Calling plugin mapping function
(DEBUG) - (remmina_protocol_widget_open_connection_real) - Opening connection
(DEBUG) - (remmina_rdp_event_init) - Disable smooth scrolling is set to 0
(DEBUG) - (remmina_rdp_event_init) - Adding GDK_SMOOTH_SCROLL_MASK
(DEBUG) - (remmina_protocol_widget_open_connection_real) - Have SSH
(DEBUG) - (remmina_rdp_main) - RDP data path is /home/ewan/.local/share/remmina/RDP
(DEBUG) - (remmina_rdp_main) - Not using system proxy settings
(DEBUG) - (remmina_rdp_tunnel_init) - Tunnel init
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - SSH tunnel initialization…
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - Calling remmina_public_get_server_port
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - Calling remmina_public_get_server_port (tunnel)
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - server: 10.1.2.2, port: 3389
(DEBUG) - (remmina_ssh_init_from_file) - We are initializing an SSH tunnel session
(DEBUG) - (remmina_ssh_init_from_file) - Calling remmina_public_get_server_port
(DEBUG) - (remmina_ssh_init_from_file) - server:port = 10.1.2.2, server = 10.1.2.2, port = 22
(DEBUG) - (remmina_ssh_init_from_file) - Initialized SSH struct from file with ssh->server = 10.1.2.2 and SSH->port = 22
(DEBUG) - (remmina_ssh_init_from_file) - ssh->user: ewan
(DEBUG) - (remmina_ssh_init_from_file) - ssh->password: (null)
(DEBUG) - (remmina_ssh_init_from_file) - ssh->auth: 0
(DEBUG) - (remmina_ssh_init_from_file) - ssh->charset: (null)
(DEBUG) - (remmina_ssh_init_from_file) - ssh->kex_algorithms: (null)
(DEBUG) - (remmina_ssh_init_from_file) - ssh->ciphers: (null)
(DEBUG) - (remmina_ssh_init_from_file) - ssh->hostkeytypes: (null)
(DEBUG) - (remmina_ssh_init_from_file) - ssh->proxycommand: (null)
(DEBUG) - (remmina_ssh_init_from_file) - ssh->stricthostkeycheck: 0
(DEBUG) - (remmina_ssh_init_from_file) - ssh->compression: no
(DEBUG) - (remmina_ssh_init_from_file) - ssh->privkeyfile: /home/ewan/.ssh/id_rsa
(DEBUG) - (remmina_protocol_widget_init_tunnel) - Creating SSH tunnel to “10.1.2.2” via SSH…
(DEBUG) - (remmina_ssh_init_session) - server=10.1.2.2 port=22 is_tunnel=Yes tunnel_entrance_host=(null) tunnel_entrance_port=0
(DEBUG) - (remmina_ssh_init_session) - Setting SSH_OPTIONS_HOST to 10.1.2.2 and SSH_OPTIONS_PORT to 22
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_IDENTITY is now /home/ewan/.ssh/id_rsa
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_set_algo: Setting method: no allowed algorithm for method "server host key algo" (+ssh-rsa,ssh-dss)
(DEBUG) - (remmina_ssh_init_session) - ssh_config have been correctly parsed
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_USER is now ewan
(DEBUG) - (remmina_ssh_init_session) - Parsing ssh_config for SSH_OPTIONS_PROXYCOMMAND returned an error: Setting method: no allowed algorithm for method "server host key algo" (+ssh-rsa,ssh-dss)
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_set: Invalid argument in ssh_options_set
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_PROXYCOMMAND does not have a valid value. (null)
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_get: Unknown ssh option 25
(DEBUG) - (remmina_ssh_init_session) - Parsing ssh_config for SSH_OPTIONS_HOSTKEYS returned an error: Unknown ssh option 25
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_set: Invalid argument in ssh_options_set
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_HOSTKEYS does not have a valid value. (null)
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_get: Unknown ssh option 24
(DEBUG) - (remmina_ssh_init_session) - Parsing ssh_config for SSH_OPTIONS_KEY_EXCHANGE returned an error: Unknown ssh option 24
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_set: Invalid argument in ssh_options_set
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_KEY_EXCHANGE does not have a valid value. (null)
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_get: Unknown ssh option 15
(DEBUG) - (remmina_ssh_init_session) - Parsing ssh_config for SSH_OPTIONS_CIPHERS_C_S returned an error: Unknown ssh option 15
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_set: Invalid argument in ssh_options_set
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_CIPHERS_C_S does not have a valid value. (null)
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_get: Unknown ssh option 21
(DEBUG) - (remmina_ssh_init_session) - Parsing ssh_config for SSH_OPTIONS_STRICTHOSTKEYCHECK returned an error: Unknown ssh option 21
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_STRICTHOSTKEYCHECK is now 0
(DEBUG) - (remmina_ssh_log_callback) - ssh_options_get: Unknown ssh option 22
(DEBUG) - (remmina_ssh_init_session) - Parsing ssh_config for SSH_OPTIONS_COMPRESSION returned an error: Unknown ssh option 22
(DEBUG) - (remmina_ssh_init_session) - SSH_OPTIONS_COMPRESSION is now no
(DEBUG) - (remmina_ssh_log_callback) - socket_callback_connected: Socket connection callback: 1 (0)
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_known_hosts_read_entries: Failed to open the known_hosts file '/etc/ssh/ssh_known_hosts': No such file or directory
(DEBUG) - (remmina_ssh_init_session) - TCP KeepAlive enabled
(DEBUG) - (remmina_ssh_init_session) - TCP_KEEPIDLE set to 20
(DEBUG) - (remmina_ssh_init_session) - TCP_KEEPCNT set to 3
(DEBUG) - (remmina_ssh_init_session) - TCP_KEEPINTVL set to 10
(DEBUG) - (remmina_ssh_init_session) - TCP_USER_TIMEOUT set to 60000
(DEBUG) - (remmina_ssh_log_callback) - ssh_packet_userauth_failure: Access denied for 'none'. Authentication that can continue: publickey,password
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_log_callback) - ssh_key_cmp: key types don't match!
(DEBUG) - (remmina_ssh_auth) - Methods supported by server: SSH_AUTH_METHOD_PASSWORD SSH_AUTH_METHOD_PUBLICKEY 
(DEBUG) - (remmina_ssh_auth) - SSH_AUTH_PASSWORD (0)
(DEBUG) - (remmina_ssh_auth) - SSH using remmina_ssh_auth_password
(DEBUG) - (remmina_ssh_auth_password) - Password authentication
(DEBUG) - (remmina_ssh_auth_password) - Authentication with SSH password returned: 0
(DEBUG) - (remmina_ssh_auth_password) - Authenticated with SSH password. (null)
(DEBUG) - (remmina_ssh_auth_gui) - Returned 1 at 1st attempt with the following message:
(DEBUG) - (remmina_ssh_auth_gui) - Could not authenticate with SSH password. 
(DEBUG) - (remmina_protocol_widget_init_tunnel) - Tunnel auth returned 1
(DEBUG) - (remmina_protocol_widget_init_tunnel) - Authentication success
(DEBUG) - (remmina_protocol_widget_start_direct_tunnel) - Starting tunnel to: (null), port: 0
(DEBUG) - (remmina_rdp_tunnel_init) - protocol_plugin_start_direct_tunnel() returned 127.0.0.1:4732
(DEBUG) - (remmina_rdp_tunnel_init) - Tunnel has been optionally initialized. Now connecting to 127.0.0.1:4732
(DEBUG) - (remmina_rdp_main) - gfx_h264_available: 1
(DEBUG) - (remmina_rdp_main) - Resolution set by the user: 804x1348
(DEBUG) - (remmina_rdp_main) - Resolution set after workarounds: 804x1348
(DEBUG) - (remmina_rdp_main) - proxy_type: (null)
(DEBUG) - (remmina_rdp_main) - proxy_username: (null)
(DEBUG) - (remmina_rdp_main) - proxy_password: (null)
(DEBUG) - (remmina_rdp_main) - proxy_hostname: (null)
(DEBUG) - (remmina_rdp_main) - proxy_port: 80
(DEBUG) - (remmina_rdp_main) - Network settings not set
(DEBUG) - (remmina_rdp_main) - rdp_keyboard_remapping_list: (null)
(DEBUG) - (remmina_rdp_main) - Log level set to to TRACE
(DEBUG) - (remmina_ssh_tunnel_create_forward_channel) - SSH tunnel destination is 10.1.2.2
(DEBUG) - (remmina_rdp_post_connect) - bpp: 32
(DEBUG) - (remmina_rdp_post_connect) - CAIRO_FORMAT_RGB24
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel rdpdr has been opened
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel rdpsnd has been opened
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel drdynvc has been opened
(DEBUG) - (remmina_rdp_event_connected) - [2023-01-28T12:55:25.337789+11] - yoda.lan - ewan - Connected to 127.0.0.1 via RDP
(DEBUG) - (rco_on_connect) - Connect signal emitted
(DEBUG) - (rco_on_connect) - We save the last successful connection date
(DEBUG) - (remmina_file_state_last_success) - State file /home/ewan/.cache/remmina/group_rdp_quick-connect_10-1-2-2.remmina.state.
(DEBUG) - (remmina_file_state_last_success) - Last connection made on 20230128.
(DEBUG) - (rco_on_connect) - Saving credentials
(DEBUG) - (remmina_file_save) - Saving profile
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_store_password) - Password “password” saved for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina

(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_store_password) - Password “ssh_tunnel_password” saved for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina

(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “gateway_password” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “ssh_tunnel_passphrase” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - Profile saved
(DEBUG) - (remmina_file_save) - Connection profile states saved
(DEBUG) - (remmina_network_monitor_status) - G_NETWORK_CONNECTIVITY_FULL
(DEBUG) - (rco_on_connect) - Trying to present the window
(DEBUG) - (remmina_rdp_OnChannelConnectedEventHandler) - Channel Microsoft::Windows::RDS::DisplayControl has been opened
(DEBUG) - (remmina_rdp_event_on_focus_in) - Top level name is: RemminaConnectionWindow
(DEBUG) - (rf_auto_reconnect) - maxattempts from default: 20
(DEBUG) - (rf_auto_reconnect) - maxattempts from general preferences: 20
(DEBUG) - (rf_auto_reconnect) - maxattempts from general plugin: 0
(DEBUG) - (rf_auto_reconnect) - maxattempts set to: 20
(DEBUG) - (remmina_rdp_main_loop) - [2023-01-28T12:55:26.027296+11] - yoda.lan - ewan - Disconnected from 127.0.0.1 via RDP
(DEBUG) - (remmina_ssh_tunnel_main_thread_proc) - tunnel disconnected because Could not read from tunnel listening socket. 
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel rdpdr has been closed
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel rdpsnd has been closed
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel Microsoft::Windows::RDS::DisplayControl has been closed
(DEBUG) - (remmina_protocol_widget_tunnel_destroy) - [Tunnel with idx 0 has been disconnected
(DEBUG) - (remmina_ssh_tunnel_free) - tunnel->thread = 0

(DEBUG) - (remmina_ssh_free) - Disconnecting SSH session
(DEBUG) - (remmina_rdp_OnChannelDisconnectedEventHandler) - Channel drdynvc has been closed
(DEBUG) - (remmina_rdp_main_loop) - RDP client disconnected
(DEBUG) - (rco_on_disconnect) - Disconnect signal received on RemminaProtocolWidget
(DEBUG) - (remmina_file_save) - Saving profile
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_store_password) - Password “password” saved for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina

(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_store_password) - Password “ssh_tunnel_password” saved for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina

(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “gateway_password” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - We have a secret and disablepasswordstoring=0
(DEBUG) - (remmina_plugin_glibsecret_delete_password) - password “ssh_tunnel_passphrase” deleted for file /home/ewan/.local/share/remmina/group_rdp_quick-connect_10-1-2-2.remmina
(DEBUG) - (remmina_file_save) - Profile saved
(DEBUG) - (remmina_file_save) - Connection profile states saved
(DEBUG) - (remmina_network_monitor_status) - G_NETWORK_CONNECTIVITY_FULL
(DEBUG) - (rco_on_disconnect) - Disconnected

我也尝试使用 Remmina 从我的笔记本电脑（Garuda Linux）进行连接，结果相同。

任何帮助或想法均表示感谢。

Answer 1

所以我已经解决了这个问题...至少现在是这样。

我记得我曾尝试在 Ubuntu 机器上设置 RDP 服务，方法是手动安装并在终端中设置 xrdp。即使此服务未运行，它似乎也与 Gnome 中的内置 RDP 设置发生冲突，删除 xrdp 包并重新启动似乎可以解决问题。

Answer 2

Flatpak Remmina 崩溃了，然后无法连接任何东西。从汉堡菜单中启用调试，然后查看最后一行。

网络连通性

> flatpak ps  #find the instance id of flatpak process for remmina.
> flatpak ps | egrep -i remmina
> flatpak kill $(flatpak ps | egrep -i remmina | cut -f1)
> flatpak run org.remmina.Remmina $@ &
> # remmina works now :)  :)

Answer 3

不确定您的问题是否与我的问题有关：我的 Remmina 客户端（在 Ubuntu 22.04 上）在连接到“屏幕共享”（在 Ubuntu 22.04 上）时会立即崩溃，其中 RDP 现在是默认的屏幕共享协议。

仅当提供了有效密码后才会发生这种情况。

我的解决方法：将客户端和屏幕共享主机的“显示服务器”从 Wayland 更改为 Xorg...请参见：

如何在 Ubuntu 22.04 上从 Wayland 显示服务器切换到 Xorg X11

额外好处：这还修复了我尝试使用存档管理器将文件从 zip 文件中拖出时遇到的拖放问题。