Comment 4 for bug 386224

I had the same issue, Its resolved by choosing a 2.6.28 kernel from the grub menu. The rpoblem was with 2.6.31, havnt tried 2.6.30.
 Same result with bluez 4.45 from ubuntu, and 4.46 from bluez git. (havnt patched kernel or anything silly like that yet, maybee try that if not much movement here)