Comment 11 for bug 281546

I don't use Synergy, however I hit the same problem (left and down arrow don't repeat) yesterday after upgrade from intrepid to jaunty.

This is dual-seat amd-64 machine, but the problem remains after disconnecting second keyboard and starting only the fist X server.

Maybe it's related to the keyboard (A4 Tech slim keyboard without numeric keypad - http://a4tech.com/ennew/product.asp?cid=2&scid=101&id=425).