This seesm to be caused by other device like phone owning the output and the implementation by Sennheiser is particually deficient in some what
If I list all UUIDs the proper output seems to be there [MOMENTUM 3]# info 00:1B:66:E9:99:8F Device 00:1B:66:E9:99:8F (public) Name: MOMENTUM 3 Alias: MOMENTUM 3 Class: 0x00240404 (2360324) Icon: audio-headset Paired: yes Bonded: yes Trusted: yes Blocked: no Connected: yes LegacyPairing: no UUID: Vendor specific (00000000-deca-fade-deca-deafdecacaff) UUID: Headset (00001108-0000-1000-8000-00805f9b34fb) UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb) UUID: Advanced Audio Distribu.. (0000110d-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Handsfree (0000111e-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) UUID: Device Information (0000180a-0000-1000-8000-00805f9b34fb) UUID: Battery Service (0000180f-0000-1000-8000-00805f9b34fb) UUID: SENNHEISER electronic G.. (0000fdce-0000-1000-8000-00805f9b34fb) UUID: Amazon.com Services, Inc. (0000fe03-0000-1000-8000-00805f9b34fb) UUID: Tile, Inc. (0000feec-0000-1000-8000-00805f9b34fb) UUID: Tile, Inc. (0000feed-0000-1000-8000-00805f9b34fb) UUID: Vendor specific (1ddce62a-ecb1-4455-8153-0743c87aec9f) UUID: Vendor specific (931c7e8a-540f-4686-b798-e8df0a2ad9f7) Modalias: bluetooth:v0494p0046d8003 RSSI: 0xffffffd2 (-46) TxPower: 0xffffffd8 (-40) Battery Percentage: 0x28 (40) yes the bluetooth audio card show only hands free Card #106 Name: bluez_card.00_1B_66_E9_99_8F Driver: module-bluez5-device.c Owner Module: n/a Properties: api.bluez5.address = "00:1B:66:E9:99:8F" api.bluez5.class = "0x240404" api.bluez5.connection = "disconnected" api.bluez5.device = "" api.bluez5.icon = "audio-headset" api.bluez5.id = "3" api.bluez5.path = "/org/bluez/hci0/dev_00_1B_66_E9_99_8F" bluez5.profile = "off" device.alias = "MOMENTUM 3" device.api = "bluez5" device.bus = "bluetooth" device.description = "MOMENTUM 3" device.form_factor = "headset" device.icon_name = "audio-headset-bluetooth" device.name = "bluez_card.00_1B_66_E9_99_8F" device.product.id = "0x0046" device.string = "00:1B:66:E9:99:8F" device.vendor.id = "bluetooth:0494" media.class = "Audio/Device" factory.id = "14" client.id = "32" object.id = "75" object.serial = "106" Profiles: off: Off (sinks: 0, sources: 0, priority: 0, available: yes) headset-head-unit: Headset Head Unit (HSP/HFP) (sinks: 1, sources: 1, priority: 1, available: yes) headset-head-unit-cvsd: Headset Head Unit (HSP/HFP, codec CVSD) (sinks: 1, sources: 1, priority: 2, available: yes) headset-head-unit-msbc: Headset Head Unit (HSP/HFP, codec mSBC) (sinks: 1, sources: 1, priority: 3, available: yes) Active Profile: headset-head-unit-msbc Ports: headset-hf-input: Handsfree (type: Headset, priority: 0, latency offset: 0 usec, available) Properties: port.type = "headset" Part of profile(s): headset-head-unit, headset-head-unit-cvsd, headset-head-unit-msbc headset-hf-output: Handsfree (type: Headset, priority: 0, latency offset: 0 usec, available) Properties: port.type = "headset" Part of profile(s): headset-head-unit, headset-head-unit-cvsd, headset-head-unit-msbc If I reconnect the audio profiles reappear Card #209 Name: bluez_card.00_1B_66_E9_99_8F Driver: module-bluez5-device.c Owner Module: n/a Properties: api.bluez5.address = "00:1B:66:E9:99:8F" api.bluez5.class = "0x240404" api.bluez5.connection = "disconnected" api.bluez5.device = "" api.bluez5.icon = "audio-headset" api.bluez5.id = "3" api.bluez5.path = "/org/bluez/hci0/dev_00_1B_66_E9_99_8F" bluez5.profile = "off" device.alias = "MOMENTUM 3" device.api = "bluez5" device.bus = "bluetooth" device.description = "MOMENTUM 3" device.form_factor = "headset" device.icon_name = "audio-headset-bluetooth" device.name = "bluez_card.00_1B_66_E9_99_8F" device.product.id = "0x0046" device.string = "00:1B:66:E9:99:8F" device.vendor.id = "bluetooth:0494" media.class = "Audio/Device" factory.id = "14" client.id = "32" object.id = "75" object.serial = "209" Profiles: off: Off (sinks: 0, sources: 0, priority: 0, available: yes) headset-head-unit: Headset Head Unit (HSP/HFP) (sinks: 1, sources: 1, priority: 1, available: yes) a2dp-sink-sbc: High Fidelity Playback (A2DP Sink, codec SBC) (sinks: 1, sources: 0, priority: 19, available: yes) a2dp-sink-sbc_xq: High Fidelity Playback (A2DP Sink, codec SBC-XQ) (sinks: 1, sources: 0, priority: 18, available: yes) a2dp-sink: High Fidelity Playback (A2DP Sink, codec aptX) (sinks: 1, sources: 0, priority: 20, available: yes) a2dp-sink-aptx_ll: High Fidelity Playback (A2DP Sink, codec aptX-LL) (sinks: 1, sources: 0, priority: 17, available: yes) headset-head-unit-cvsd: Headset Head Unit (HSP/HFP, codec CVSD) (sinks: 1, sources: 1, priority: 2, available: yes) headset-head-unit-msbc: Headset Head Unit (HSP/HFP, codec mSBC) (sinks: 1, sources: 1, priority: 3, available: yes) Active Profile: a2dp-sink Ports: headset-output: Headset (type: Headset, priority: 0, latency offset: 0 usec, available) Properties: port.type = "headset" Part of profile(s): a2dp-sink-sbc, a2dp-sink-sbc_xq, a2dp-sink, a2dp-sink-aptx_ll headset-hf-input: Handsfree (type: Headset, priority: 0, latency offset: 0 usec, available) Properties: port.type = "headset" Part of profile(s): headset-head-unit, headset-head-unit-cvsd, headset-head-unit-msbc headset-hf-output: Handsfree (type: Headset, priority: 0, latency offset: 0 usec, available) Properties: port.type = "headset" Part of profile(s): headset-head-unit, headset-head-unit-cvsd, headset-head-unit-msbc -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/2085520 Title: Sennheiser Momentum 3 loses sound from time to time Status in bluez package in Ubuntu: New Status in pipewire package in Ubuntu: New Bug description: From time to time my headphones loses sound I had to switch the coded to another one and back then I got sound back. The Ubuntu is 24.04. Also I have problem that switching from Handsfree mode takes very long (over 10s after closing the source of the call). Then Headset mode will not appear. I know that might be to the poor implementation of the bt protocol stack, as my other headphones like Sony WF-1000XM5 work flawlessly. Yet maybe we could workaround that. In the logs I can see: [ 38.289943] nvidia-nvlink: Unregistered Nvlink Core, major device number 508 [ 38.832629] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 38.832632] Bluetooth: BNEP filters: protocol multicast [ 38.832635] Bluetooth: BNEP socket layer initialized [ 38.833670] Bluetooth: MGMT ver 1.22 [ 38.835604] NET: Registered PF_ALG protocol family [ 38.864528] Bluetooth: RFCOMM TTY layer initialized [ 38.864537] Bluetooth: RFCOMM socket layer initialized [ 38.864540] Bluetooth: RFCOMM ver 1.11 [ 43.330037] NOHZ tick-stop error: local softirq work is pending, handler #40!!! [ 62.341826] overlayfs: missing 'lowerdir' [ 64.118370] evm: overlay not supported [ 64.183442] Initializing XFRM netlink socket [ 72.115883] usb 2-2: current rate 16000 is different from the runtime rate 48000 [ 84.853403] lxdbr0: port 4(taped3c5c12) entered blocking state [ 84.853409] lxdbr0: port 4(taped3c5c12) entered disabled state [ 84.853424] taped3c5c12: entered allmulticast mode [ 84.853468] taped3c5c12: entered promiscuous mode [ 84.948340] lxdbr0: port 4(taped3c5c12) entered blocking state [ 84.948343] lxdbr0: port 4(taped3c5c12) entered forwarding state [ 85.655899] mpbr0: port 1(tapefc1ee6a) entered blocking state [ 85.655903] mpbr0: port 1(tapefc1ee6a) entered disabled state [ 85.655916] tapefc1ee6a: entered allmulticast mode [ 85.655948] tapefc1ee6a: entered promiscuous mode [ 85.820240] mpbr0: port 1(tapefc1ee6a) entered blocking state [ 85.820248] mpbr0: port 1(tapefc1ee6a) entered forwarding state [ 94.272004] Bluetooth: hci0: SCO packet for unknown connection handle 257 [ 94.595188] input: MOMENTUM 3 (AVRCP) as /devices/virtual/input/input29 [ 135.366386] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 333.439217] loop81: detected capacity change from 0 to 26328 [ 379.947981] NOHZ tick-stop error: local softirq work is pending, handler #81!!! [ 394.698913] NOHZ tick-stop error: local softirq work is pending, handler #01!!! [ 436.255845] FAT-fs (nvme0n1p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. [ 929.184361] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 929.211082] NOHZ tick-stop error: local softirq work is pending, handler #10!!! [ 6050.862825] input: MOMENTUM 3 (AVRCP) as /devices/virtual/input/input30 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/2085520/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp