Public bug reported:
Bluetooth connections to any/all bluetooth devices have become very
unstable - all connections will fail at the same time. The dmesg logs
show
[94692.756106] Bluetooth: hci0: Hardware error 0x0c
[94692.770097] Bluetooth: hci0: Retrieving Intel exception info failed (-16)
when it happens. The latest version of bluez, 5.79-2ubuntu1.3, made the
problem a lot worse, but it seems to also be present on 5.79-2ubuntu1.
ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: bluez 5.79-2ubuntu1
ProcVersionSignature: Ubuntu 6.14.0-29.29-generic 6.14.8
Uname: Linux 6.14.0-29-generic x86_64
ApportVersion: 2.32.0-0ubuntu5.3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 14 12:39:53 2025
InstallationDate: Installed on 2025-02-25 (231 days ago)
InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Release amd64 (20241009.4)
InterestingModules: btusb rfcomm bnep bluetooth
MachineType: LENOVO 21HM006GMX
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.14.0-29-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
vt.handoff=7
SourcePackage: bluez
UpgradeStatus: Upgraded to plucky on 2025-06-02 (134 days ago)
dmi.bios.date: 04/22/2025
dmi.bios.release: 1.35
dmi.bios.vendor: LENOVO
dmi.bios.version: N3XET60W (1.35 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21HM006GMX
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76530 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.19
dmi.modalias:
dmi:bvnLENOVO:bvrN3XET60W(1.35):bd04/22/2025:br1.35:efr1.19:svnLENOVO:pn21HM006GMX:pvrThinkPadX1CarbonGen11:rvnLENOVO:rn21HM006GMX:rvrSDK0T76530WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21HM_BU_Think_FM_ThinkPadX1CarbonGen11:
dmi.product.family: ThinkPad X1 Carbon Gen 11
dmi.product.name: 21HM006GMX
dmi.product.sku: LENOVO_MT_21HM_BU_Think_FM_ThinkPad X1 Carbon Gen 11
dmi.product.version: ThinkPad X1 Carbon Gen 11
dmi.sys.vendor: LENOVO
hciconfig:
hci0: Type: Primary Bus: USB
BD Address: E4:0D:36:5D:03:BC ACL MTU: 1021:4 SCO MTU: 96:6
UP RUNNING PSCAN
RX bytes:17911665 acl:316352 sco:6 events:1742374 errors:0
TX bytes:1071179854 acl:1740765 sco:0 commands:1043 errors:0
** Affects: bluez (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug plucky
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https://bugs.launchpad.net/bugs/2127844
Title:
Bluetooth drops connections frequently
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