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-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1829737 Title: Bluetooth: hci0: request failed to create LE connection: status 0x0c (Intel 9462/9560) Status in HWE Next: New Status in linux-firmware package in Ubuntu: Fix Released Status in linux-firmware source package in Bionic: Fix Released Bug description: SRU Justification [Impact] The firmware blob for Intel Bluetooth 9560/9462 is versioned 20.30.0.1 is not compatible with kernel version >= 4.19 and will cause failure to pair BT 4.0 devices. [Fix] 29a536a02cad linux-firmware: Update firmware file for Intel Bluetooth 9560 Above upstream change contains latest firmware file for Intel Bluetooth 9560 that fixes HID pairing in recent kernel versions. [Test Case] Copy ibt-17-16-1.sfi blob to /lib/firmware/intel and do a cold boot to reload firmware. One should find following message in dmesg: Bluetooth: hci0: Bootloader revision 0.1 build 42 week 52 2015 This indicates firmware reload has been activated. For further warm boots, kernel would dump updated revision: Bluetooth: hci0: Firmware revision 0.1 build 184 week 15 2019 And perform BT 4.0 device pairing for functional tests. Tested blob against following kernel versions: * 5.0.0-1004-oem-osp1 * 5.0.0-15-generic * 4.18.0-20-generic * 4.15.0-1038-oem * 4.15.0-50-generic [Regression Risk] Low. This affects only Intel JeffersonPeak Bluetooth chip series, namely 9461/9462/9560, which are the hardware variants to be fixed. --- For kernel version >= 4.19, it fails to pair with BT4.0 HID devices and leave error messages in syslog: Bluetooth: hci0: request failed to create LE connection: status 0x0c Which can be detailed by btmon: < HCI Command: LE Extended Create Connection (0x08|0x0043) plen 26 #800 [hci0] 30.895622 Filter policy: White list is not used (0x00) Own address type: Public (0x00) Peer address type: Random (0x01) Peer address: DB:DD:51:2D:1C:CC (Static) Initiating PHYs: 0x01 Entry 0: LE 1M Scan interval: 60.000 msec (0x0060) Scan window: 60.000 msec (0x0060) Min connection interval: 30.00 msec (0x0018) Max connection interval: 50.00 msec (0x0028) Connection latency: 0 (0x0000) Supervision timeout: 420 msec (0x002a) Min connection length: 0.000 msec (0x0000) Max connection length: 0.000 msec (0x0000) > HCI Event: Command Status (0x0f) plen 4 #801 [hci0] 30.896453 LE Extended Create Connection (0x08|0x0043) ncmd 1 Status: Command Disallowed (0x0c) Indicating this is actually a firmware problem. Verified this has been fixed at least in upstream linux-firmware commit 29a536a02cadb75b84c6c0b5d7af22d34d278563, firmware release version 21.10.0.6. With that firmware blob placed under /lib/firmware/intel and a cold boot, dmesg gives updated revision and device pairing works as expected: Firmware revision 0.1 build 184 week 15 2019 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1829737/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
