https://bugzilla.kernel.org/show_bug.cgi?id=190831 --- Comment #2 from Jan Steffens <jan.steffens@xxxxxxxxx> --- New firmware with old DDC indeed works. The "Setting Intel event mask failed" message seen with the old firmware didn't reappear, either. Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014 Bluetooth: hci0: Device revision is 5 Bluetooth: hci0: Secure boot is enabled Bluetooth: hci0: OTP lock is enabled Bluetooth: hci0: API lock is enabled Bluetooth: hci0: Debug lock is disabled Bluetooth: hci0: Minimum firmware build 1 week 10 2014 Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi Bluetooth: hci0: Waiting for firmware download to complete Bluetooth: hci0: Firmware loaded in 1424291 usecs Bluetooth: hci0: Waiting for device to boot Bluetooth: hci0: Device booted in 15526 usecs Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-11-5.ddc Bluetooth: hci0: Applying Intel DDC parameters completed -- You are receiving this mail because: You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html