I also use Ubuntu (8.04 amd64 desktop) as the server and Windows XP as the client.
I experienced all the symptoms you described in terms of key repeats, although I was using cygwin rather than blade consoles.
I stopped and restarted synergy on both the client and server. Finally, in an act of desperation, I rebooted my ubuntu host and the problem resolved itself.
Sorry, I don't know why this resolved the problem when simple synergy restarts did not!
BTW, I have synergy configured to start automatically on both hosts; the client has a Windows service and the ubuntu server has:
In /etc/gdm/PreSession/Default :
In /etc/gdm/Init/Default :
if [ x$SYNERGYS != x ] ; then
$SYNERGYS --config /home/username/.quicksynergy/synergy.conf
This might not be an optimal configuration but it works. I obtained these steps from http://ubuntuforums.org/showthread.php?t=48196
/usr/bin/synergys --config /home/username/.quicksynergy/synergy.conf
Hope this helps.