Reopening the bug. Kubuntu has problems with the passkey-agent. Jonathan Riddell proposed to use the patch of http://kmobiletools.org/node/228 - which makes it possible to exec passkey agents 'the old way'. However using the patch and running passkey-agent --default /usr/lib/kdebluetooth/kbluepin seems not enough.
Reopening the bug. Kubuntu has problems with the passkey-agent. Jonathan Riddell proposed to use the patch of http:// kmobiletools. org/node/ 228 - which makes it possible to exec passkey agents 'the old way'. However using the patch and running passkey-agent --default /usr/lib/ kdebluetooth/ kbluepin seems not enough.