Comment 1 for bug 281546

I have the exact same issue, but only when using Synergy. The down/left arrow repeats work fine on the Synergy server, but not on the client. When I use a locally attached keyboard on the Synergy client the down/left arrow keys repeat fine.

Also, if I turn off Num Lock, the down/left arrows repeat fine on the Synergy client.

The issue has persisted across a number of synergy restarts (on both client and server) and across reboots. Both client and server are running Ubuntu 8.10 final release and the issue started after the upgrade.