>From dmesg, I found your BT firmware is old one.
[5.038223] Bluetooth: hci0: Firmware revision 0.4 build 126 week 5 2022
22.04.4 log:
[ 528.128307] Bluetooth: hci0: Firmware revision 0.4 build 206 week 22 2023
After downgrade linux-firmware to:20220329.git681281e4-0ubuntu3.14
With the
Tested BT on X1C9 with 22.04.4 with 6.5.0-18-generic kernel.
Bus 003 Device 005: ID 8087:0026 Intel Corp. AX201 Bluetooth
Device Descriptor:
bLength18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 224 Wireless
bDeviceSubClass 1 Radio
Gabriel help me find one X1C9. I will try to reproduce the issue after I
got it.
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https://bugs.launchpad.net/bugs/2049938
Title:
Bang & Olufsen Cisco 980 loses connection
@David,
Could you provide the dmesg of 6.5 generic kernel after reproduced the
issue?
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Changed in: linux (Ubuntu)
Importance: Undecided => High
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Ubuntu Jammy 6.5 kernel is located in:
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy
hwe-6.5-next
Ubuntu Jammy oem kernel is located in:
https://git.launchpad.net/~canonical-kernel/ubuntu/+source/linux-oem/+git/jammy
oem-6.5-next
the only diff from Ubuntu 6.5.0-17 to
** Changed in: linux (Ubuntu)
Assignee: The Sutton Team (sutton-team) => AaronMa (mapengyu)
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Title:
Bang & Olufsen Cisco 980
@Aaron，As just talked, can you help to double check it? Besides the
kernel, are there any other aspects that can impact the result? Our
account rep wonder if you need a meeting with the customer or you need
the HW to debug the issue? From the dmesg, it is ThinkPad X1 Carbon Gen
9. Thanks.
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You
@David,
It's an Intel AX201 chip:
[3.079924] Bluetooth: hci0: Found device firmware: intel/ibt-19-0-4.sfi
[3.079937] Bluetooth: hci0: Boot Address: 0x24800
[3.079939] Bluetooth: hci0: Firmware Version: 126-5.22
There is no difference between 6.5 jammy kernel and 6.5-oem kernel.
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Dmesg log from OEM kernel
** Attachment added: "dmesg_out"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2049938/+attachment/5748485/+files/dmesg_out
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lsusb output
** Attachment added: "lsusb_out"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2049938/+attachment/5748486/+files/lsusb_out
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@David
could you upload the whole dmesg and lsusb?
For a quick check, the only diff is MT7925.
Is this your bluetooth chip?
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) => The Sutton Team (sutton-team)
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Title:
Bang & Olufsen Cisco 980 loses
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