Problem solved. This was due to my headset device. Most desktop user interfaces glossing over this doesn't help detect and so to solve the (stupid) problem. Le dim. 7 juil. 2024 à 18:50, Patrice Duroux <patrice.duroux@xxxxxxxxx> a écrit : > > Hi, > > In the past (same laptop and headset) it has worked but it is no more > working after upgrading my current system (more details to follow). > The device scanning is able to list a lot of devices in my environment > but not the desired one and finally I used btmon to get more output. > > Any help would be appreciated. > > Regards, > Patrice > > -- > $ uname -a > Linux kos-moceratops 6.9.7-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.9.7-1 > (2024-06-27) x86_64 GNU/Linux > > $ sudo dmesg | grep -i blue > [ 11.381833] Bluetooth: Core ver 2.22 > [ 11.381853] NET: Registered PF_BLUETOOTH protocol family > [ 11.381854] Bluetooth: HCI device and connection manager initialized > [ 11.381857] Bluetooth: HCI socket layer initialized > [ 11.381859] Bluetooth: L2CAP socket layer initialized > [ 11.381863] Bluetooth: SCO socket layer initialized > [ 12.124487] Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017 > [ 12.125484] Bluetooth: hci0: Device revision is 1 > [ 12.125486] Bluetooth: hci0: Secure boot is enabled > [ 12.125487] Bluetooth: hci0: OTP lock is enabled > [ 12.125488] Bluetooth: hci0: API lock is enabled > [ 12.125489] Bluetooth: hci0: Debug lock is disabled > [ 12.125489] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 > [ 12.128514] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi > [ 12.128580] Bluetooth: hci0: Boot Address: 0x24800 > [ 12.128581] Bluetooth: hci0: Firmware Version: 132-3.24 > [ 12.194702] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 > [ 12.194705] Bluetooth: BNEP filters: protocol multicast > [ 12.194707] Bluetooth: BNEP socket layer initialized > [ 12.311050] Bluetooth: hci0: Failed to send firmware data (-19) > [ 12.311087] Bluetooth: hci0: sending frame failed (-19) > [ 12.311093] Bluetooth: hci0: FW download error recovery failed (-108) > [ 12.311139] Bluetooth: hci0: sending frame failed (-19) > [ 12.311154] Bluetooth: hci0: Reading supported features failed (-19) > [ 12.311157] Bluetooth: hci0: Error reading debug features > [ 12.311158] Bluetooth: hci0: HCI LE Coded PHY feature bit is set, > but its usage is not supported. > [12819.555606] Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017 > [12819.556628] Bluetooth: hci0: Device revision is 1 > [12819.556638] Bluetooth: hci0: Secure boot is enabled > [12819.556641] Bluetooth: hci0: OTP lock is enabled > [12819.556644] Bluetooth: hci0: API lock is enabled > [12819.556646] Bluetooth: hci0: Debug lock is disabled > [12819.556649] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 > [12819.564727] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi > [12819.564776] Bluetooth: hci0: Boot Address: 0x24800 > [12819.564777] Bluetooth: hci0: Firmware Version: 132-3.24 > [12821.811205] Bluetooth: hci0: Waiting for firmware download to complete > [12821.811547] Bluetooth: hci0: Firmware loaded in 2194161 usecs > [12821.811732] Bluetooth: hci0: Waiting for device to boot > [12821.826744] Bluetooth: hci0: Device booted in 14765 usecs > [12821.827778] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-20-1-3.ddc > [12821.829646] Bluetooth: hci0: Applying Intel DDC parameters completed > [12821.830657] Bluetooth: hci0: Firmware revision 0.3 build 132 week 3 2024 > [12821.832658] Bluetooth: hci0: HCI LE Coded PHY feature bit is set, > but its usage is not supported. > [12821.897877] Bluetooth: MGMT ver 1.22 > [12821.927208] Bluetooth: RFCOMM TTY layer initialized > [12821.927213] Bluetooth: RFCOMM socket layer initialized > [12821.927215] Bluetooth: RFCOMM ver 1.11 > > $ sudo btmon > Bluetooth monitor ver 5.73 > btmon[166569]: = Note: Linux version 6.9.7-amd64 (x86_64) > > 0.917019 > btmon[166569]: = Note: Bluetooth subsystem version 2.22 > > 0.917020 > = New Index: 5C:80:B6:E9:D7:DD (Primary,USB,hci0) > > [hci0] 0.917021 > = Open Index: 5C:80:B6:E9:D7:DD > > [hci0] 0.917021 > = Index Info: 5C:80:B6:E9:D7:DD (Intel Corp.) > > [hci0] 0.917021 > bluetoothd[166074]: @ MGMT Open: bluetoothd (privileged) version 1.22 > > {0x0001} 0.917022 > > HCI Event: Connect Request (0x04) plen 10 #1 [hci0] 17.029619 > Address: E4:22:A5:BC:E9:A3 (PLANTRONICS, INC.) > Class: 0x240404 > Major class: Audio/Video (headset, speaker, stereo, video, vcr) > Minor class: Wearable Headset Device > Rendering (Printing, Speaker) > Audio (Speaker, Microphone, Headset) > Link type: ACL (0x01) > < HCI Command: Reject Connection Request (0x01|0x000a) plen 7 > #2 > [hci0] 17.029727 > Address: E4:22:A5:BC:E9:A3 (PLANTRONICS, INC.) > Reason: Connection Rejected due to Unacceptable BD_ADDR (0x0f) > > HCI Event: Command Status (0x0f) plen 4 #3 [hci0] 17.030438 > Reject Connection Request (0x01|0x000a) ncmd 1 > Status: Success (0x00) > > HCI Event: Connect Complete (0x03) plen 11 #4 [hci0] 17.112704 > Status: Connection Rejected due to Unacceptable BD_ADDR (0x0f) > Handle: 65535 > Address: E4:22:A5:BC:E9:A3 (PLANTRONICS, INC.) > Link type: ACL (0x01) > Encryption: Disabled (0x00) > > <... cut repeating the same ...>