In my case, the solution was: enter the notebook into the sleep mode and then resume it.
Notebook Dell Inspiron 1525, Ubuntu 10.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/554431 Title: Bluetooth is disabled. Pressing "Turn on bluetooth" not working -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs