Created attachment 1235232 [details]
endless dialog

Description of problem:
it is not possible to connect to remote desktop.
vinagre is in endless loop in dialog "can not verify certificate, do you belive hostname? <cancell> <connect>" and can not break it even if I choice any of proposed variants. Also, it do not react to close application button.

Version-Release number of selected component (if applicable):
vinagre-3.22.0-1.fc25.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Run vinagre
2. Choice hostname to connect
3. play with endless dialog

Actual results:
endless dialog

Expected results:
connect to untrusted host

Additional info:

1. KDE is used.
2. KRDP by `xfreerdp -decorations /w:1600 /h:1100 /kbd:0x00000409 /u:setup /parent-window:77595088 /bpp:24 /audio-mode:2 /network:lan /cert-ignore +clipboard /port:3389 /v:ua-dudn00000w /p:*********` can connect OK



also

[sergeil@homedesk ~]$ vinagre 

(vinagre:3735): Gtk-WARNING **: Failed to get the GNOME session proxy: The name org.gnome.SessionManager is not owned

(vinagre:3735): Gtk-WARNING **: Failed to get the Xfce session proxy: The name org.xfce.SessionManager is not owned

(vinagre:3735): Gtk-WARNING **: Failed to get an inhibit portal proxy: The name org.freedesktop.portal.Desktop is not owned
[23:43:22:321] [3735:3735] [ERROR][com.freerdp.crypto] - certificate not trusted, aborting.
[23:43:22:321] [3735:3735] [ERROR][com.freerdp.core] - freerdp_set_last_error ERRCONNECT_CONNECT_CANCELLED [0x2000B]
[23:43:22:321] [3735:3735] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure
[23:50:25:999] [3735:3735] [ERROR][com.freerdp.crypto] - certificate not trusted, aborting.
[23:50:25:999] [3735:3735] [ERROR][com.freerdp.core] - freerdp_set_last_error ERRCONNECT_CONNECT_CANCELLED [0x2000B]
[23:50:25:000] [3735:3735] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure
[23:50:26:643] [3735:3735] [ERROR][com.freerdp.crypto] - certificate not trusted, aborting.
[23:50:26:644] [3735:3735] [ERROR][com.freerdp.core] - freerdp_set_last_error ERRCONNECT_CONNECT_CANCELLED [0x2000B]
[23:50:26:644] [3735:3735] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure
[23:50:26:194] [3735:3735] [ERROR][com.freerdp.crypto] - certificate not trusted, aborting.
[23:50:26:194] [3735:3735] [ERROR][com.freerdp.core] - freerdp_set_last_error ERRCONNECT_CONNECT_CANCELLED [0x2000B]
[23:50:26:194] [3735:3735] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure
[23:50:28:933] [3735:3735] [ERROR][com.freerdp.crypto] - certificate not trusted, aborting.
[23:50:28:933] [3735:3735] [ERROR][com.freerdp.core] - freerdp_set_last_error ERRCONNECT_CONNECT_CANCELLED [0x2000B]
[23:50:28:933] [3735:3735] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure
[23:50:29:755] [3735:3735] [ERROR][com.freerdp.crypto] - certificate not trusted, aborting.
[23:50:29:755] [3735:3735] [ERROR][com.freerdp.core] - freerdp_set_last_error ERRCONNECT_CONNECT_CANCELLED [0x2000B]
[23:50:29:755] [3735:3735] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure
^C