My stopped working also after the upgrade from 13.10 to 14.04. I don't get exactly to the same pt as you guys. I tried with two uptodate clients from RealVNC and tightVNC.
xabix@HTPC:~$ sudo /usr/lib/vino/vino-server start | (vino-server:20098): EggSMClient-CRITICAL **: egg_sm_client_set_mode: assertion 'global_client == NULL || global_cl ient_mode == EGG_SM_CLIENT_MODE_DISABLED' failed 30/03/2014 18:20:44 Autoprobing TCP port in (all) network interface 30/03/2014 18:20:44 Listening IPv6://[::]:5900 30/03/2014 18:20:44 Listening IPv4://0.0.0.0:5900 30/03/2014 18:20:44 Autoprobing selected port 5900 30/03/2014 18:20:44 Advertising security type: 'TLS' (18) 30/03/2014 18:20:44 Re-binding socket to listen for VNC connections on TCP port 5900 in (all) interface 30/03/2014 18:20:44 Listening IPv6://[::]:5900 30/03/2014 18:20:44 Listening IPv4://0.0.0.0:5900 30/03/2014 18:20:44 Clearing securityTypes 30/03/2014 18:20:44 Advertising security type: 'TLS' (18) 30/03/2014 18:20:44 Clearing securityTypes 30/03/2014 18:20:44 Advertising security type: 'TLS' (18) 30/03/2014 18:20:44 Advertising authentication type: 'No Authentication' (1) 30/03/2014 18:20:44 Re-binding socket to listen for VNC connections on TCP port 5900 in (all) interface 30/03/2014 18:20:44 Listening IPv6://[::]:5900 30/03/2014 18:20:44 Listening IPv4://0.0.0.0:5900 RealVNC client 30/03/2014 18:21:02 [IPv4] Got connection from client lenovo-wifi.home 30/03/2014 18:21:02 other clients: 30/03/2014 18:21:02 Client Protocol Version 3.7 30/03/2014 18:21:02 Advertising security type 18 30/03/2014 18:21:02 Client lenovo-wifi.home gone 30/03/2014 18:21:02 Statistics: 30/03/2014 18:21:02 framebuffer updates 0, rectangles 0, bytes 0 TightVNC client 30/03/2014 18:23:50 [IPv4] Got connection from client lenovo-wifi.home 30/03/2014 18:23:50 other clients: 30/03/2014 18:23:50 Client Protocol Version 3.7 30/03/2014 18:23:50 Advertising security type 18 30/03/2014 18:23:53 Client lenovo-wifi.home gone 30/03/2014 18:23:53 Statistics: 30/03/2014 18:23:53 framebuffer updates 0, rectangles 0, bytes 0 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to vino in Ubuntu. https://bugs.launchpad.net/bugs/1290666 Title: Ubuntu 14.04 (Alpha Release) - VNC not working Status in “vino” package in Ubuntu: Confirmed Bug description: Hello Everyone, I need your help to resolve the issue with VNC - Remore desktop connection. I upgraded my ubuntu from 12.04 LTS to 14.04 (Alpha) today. I was able to connect to Ubuntu desktop (12.04) from my IPAD using HippoRemote LIte or RealVNC before. But after upgradation to 14.04, this is not working all of a sudden. I tried many options to the best of my knowledge, including but not limited to, changing / restarting my router settings, reinstalling VNC server etc, changing default port 5900 to different and port forwading etc. But none of them worked. It seems VINO is not listening to ipv4 connections, may be it conflicts with ipv6. Could any of you please help me how I can get through this. nims@reny:~$ netstat -alpn | grep :5900 (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) tcp 0 0 0.0.0.0:5900 0.0.0.0:* LISTEN 18615/vino-server tcp6 0 0 :::5900 :::* LISTEN 18615/vino-server Here are details about the version of ubuntu and the package for your perusal nims@reny:~$ lsb_release -rd Description: Ubuntu Trusty Tahr (development branch) Release: 14.04 nims@reny:~$ apt-cache policy vino vino: Installed: 3.8.1-0ubuntu1 Candidate: 3.8.1-0ubuntu1 Version table: *** 3.8.1-0ubuntu1 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages 100 /var/lib/dpkg/status Thanks! nimsreny To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vino/+bug/1290666/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

