I have found the resolution for this bug (for my configuration: Fujitsu- Siemens Amilo Pro v3205).
1) Update your bios firmware to last release avaiable. 2) In bios setup -> advanced tab -> disable the usb bios legacy support (sometimes the flashing procedure sets this option as enabled) 3) Restart With this procedure, bluetooth module is recognized during the boot without connect debounce error of usb hub Marco -- hub3-0:1.0:connect-debounce failed port1 disabled https://bugs.launchpad.net/bugs/21502 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs