OK make sure you are NOT using: ipv6.disable=1
If that is enabled via grub config then x11vnc will fail to connect. I removed that, rebuilt grub, and rebooted and now x11vnc is still crashing sometimes but after restarting x11vnc, it now works again. :) Also appears you need to be using a kernel >= 3.5.0-23 or else x11vnc crashes every single time still. Tested with 3.5.0-17 through 3.5.0-23. I have only tested this on Ubuntu 12.10 Server x64 and only on 1 server. Can anyone confirm? Same behavior and work around working? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070614 Title: x11vnc Ubuntu 12.10 - buffer overflow and not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/x11vnc/+bug/1070614/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs