This Bug seems to affect even basic HCI functionality:
"hcitool inq" is never returning in my case. dmesg gives me said error message.
I have tried two different USB-Bluetooth Dongles:
[ ] usb 2-2: New USB device found, idVendor=04b4, idProduct=f901, bcdDevice=
1.12
[ ] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ ] usb 2-2: Product: CYW20704A2
[ ] usb 2-2: Manufacturer: Cypress Semi
[ ] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ ] usb 2-2: New USB device found, idVendor=0a12, idProduct=0001,
bcdDevice=88.91
[ ] usb 2-2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ ] usb 2-2: Product: CSR8510 A10
[ ] Bluetooth: hci0: last event is not cmd complete (0x0f)
Also btmon/hcidump just seem to freeze:
< HCI Command: Inquiry (0x01|0x0001) plen 5 #1 [hci0] 10.211282
Access code: 0x9e8b33 (General Inquiry)
Length: 10.24s (0x08)
Num responses: 0
> HCI Event: Command Status (0x0f) plen 4 #2 [hci0] 10.314299
Inquiry (0x01|0x0001) ncmd 1
Status: Success (0x00)
The only way to recover from this state is to issue a "hciconfig hci0 reset".
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https://bugs.launchpad.net/bugs/1748565
Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
(0x0f)
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Confirmed
Status in Fedora:
New
Bug description:
Hello,
dmesg:
[ 3363.056494] Bluetooth: hci0: last event is not cmd complete (0x0f)
Regards,
--
Cristian
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-9-generic 4.15.0-9.10
ProcVersionSignature: Ubuntu 4.15.0-9.10-generic 4.15.2
Uname: Linux 4.15.0-9-generic x86_64
ApportVersion: 2.20.8-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: caravena 1811 F.... pulseaudio
CurrentDesktop: ubuntu-communitheme:ubuntu:GNOME
Date: Fri Feb 9 20:35:29 2018
InstallationDate: Installed on 2017-10-13 (119 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-9-generic
root=UUID=707d0f89-4b1d-4432-9d50-6058dc4c1ee9 ro rootflags=subvol=@ quiet
splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-9-generic N/A
linux-backports-modules-4.15.0-9-generic N/A
linux-firmware 1.170
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/15/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P14AAJ
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.family: ChiefRiver System
dmi.product.name: 530U3C/530U4C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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