Might this problem be related to this (fixed) regression? What version of libvncserver is used?
LibVNCServer 0.9.8.2 released! This is a maintenance release that fixes a regression in libvncclient that crept in with Apple Remote Desktop support added with 0.9.8. Viewers that were not adapted to the new functionality would fail connecting to ARD servers before. You can get it over on http://sourceforge.net/projects/libvncserver/files/libvncserver/0.9.8.2/LibVNCServer-0.9.8.2.tar.gz/download (I'm going by this https://github.com/FreeRDP/Remmina/issues/75 which says the problem is upstream) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to remmina in Ubuntu. https://bugs.launchpad.net/bugs/1171733 Title: Cannot connect to OS X (Regression) Status in “remmina” package in Ubuntu: Confirmed Bug description: When trying to connect to OS X hosts I get the following message - Unknown authentication scheme from VNC server: 30, 35 Uninstalling remmina and then installing the version from 12.04 fixes the problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/remmina/+bug/1171733/+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

