Executing "hcitool cmd 0x03 0x0003" made the error with hcitool disappear:
hcitool lescan
LE Scan ...
But hcitool does not seem to work as I can't find any ble devices.
btmon output after executing "hcitool cmd 0x03 0x0003 and hcitool lescan:
> HCI Event: Command Complete (0x0e) plen 4
> #51 [hci0] 21:45:08.127791
LE Set Scan Enable (0x08|0x000c) ncmd 2
Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7
#52 [hci0] 21:45:08.127962
Type: Passive (0x00)
Interval: 10.000 msec (0x0010)
Window: 10.000 msec (0x0010)
Own address type: Public (0x00)
Filter policy: Accept all advertisement (0x00)
> HCI Event: Command Complete (0x0e) plen 4
> #53 [hci0] 21:45:08.128699
LE Set Scan Parameters (0x08|0x000b) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7
#54 [hci0] 21:45:08.128795
Type: Passive (0x00)
Interval: 10.000 msec (0x0010)
Window: 10.000 msec (0x0010)
Own address type: Public (0x00)
Filter policy: Accept all advertisement (0x00)
> HCI Event: Command Complete (0x0e) plen 4
> #55 [hci0] 21:45:08.129744
LE Set Scan Parameters (0x08|0x000b) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2
#56 [hci0] 21:45:08.129821
Scanning: Enabled (0x01)
Filter duplicates: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4
> #57 [hci0] 21:45:08.131737
LE Set Scan Enable (0x08|0x000c) ncmd 2
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2
#58 [hci0] 21:45:08.190201
Scanning: Disabled (0x00)
Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4
> #59 [hci0] 21:45:08.200856
LE Set Scan Enable (0x08|0x000c) ncmd 2
Status: Success (0x00)
@ RAW Close: hcitool
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to bluez in Ubuntu.
https://bugs.launchpad.net/bugs/1870837
Title:
hcitool lescan says 'Set scan parameters failed: Input/output error'
Status in bluez package in Ubuntu:
Won't Fix
Bug description:
Hi,
after some testing with Ubuntu 20.04 beta I couldn't get hcitool
lescan working. I get the following error:
hcitool lescan
Set scan parameters failed: Input/output error
Bluetooth hardware:
hci0: Type: Primary Bus: USB
BD Address: 04:EA:56:21:xx:xx ACL MTU: 1021:4 SCO MTU: 96:6
UP RUNNING
RX bytes:1605 acl:0 sco:0 events:123 errors:0
TX bytes:5801 acl:0 sco:0 commands:123 errors:0
Features: 0xbf 0xfe 0x0f 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH SNIFF
Link mode: SLAVE ACCEPT
Name: 'xx'
Class: 0x200104
Service Classes: Audio
Device Class: Computer, Desktop workstation
HCI Version: 5.1 (0xa) Revision: 0x100
LMP Version: 5.1 (0xa) Subversion: 0x100
Manufacturer: Intel Corp. (2)
It is not hardware related, since I get the same error with a USB
bluetooth dongle:
hcitool -i hci1 lescan
Set scan parameters failed: Input/output error
hcitool scan is working fine on both devices; bluetoothctl is also working
and able to find ble devices.
I would normally prefer bluetoothctl, but I got a software which is based on
hcitool.
dmesg shows this errors:
[ 138.152718] debugfs: File 'le_min_key_size' in directory 'hci0' already
present!
[ 138.152722] debugfs: File 'le_max_key_size' in directory 'hci0' already
present!
Bluez version:
bluez 5.53-0ubuntu2 amd64
System:
Distributor ID: Ubuntu
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
Codename: focal
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu22
Architecture: amd64
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-04-01 (4 days ago)
InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Beta amd64
(20200331)
InterestingModules: rfcomm bnep btusb bluetooth
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0463:ffff MGE UPS Systems UPS
Bus 001 Device 002: ID 0658:0200 Sigma Designs, Inc. Aeotec Z-Stick Gen5
(ZW090) - UZB
Bus 001 Device 004: ID 8087:0aaa Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Intel(R) Client Systems NUC8i3BEH
Package: linux
PackageArchitecture: amd64
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-21-generic
root=/dev/mapper/vgcs2ubct-root ro
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Tags: focal
Uname: Linux 5.4.0-21-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 10/23/2019
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BECFL357.86A.0075.2019.1023.1448
dmi.board.name: NUC8BEB
dmi.board.vendor: Intel Corporation
dmi.board.version: J72693-306
dmi.chassis.type: 35
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.modalias:
dmi:bvnIntelCorp.:bvrBECFL357.86A.0075.2019.1023.1448:bd10/23/2019:svnIntel(R)ClientSystems:pnNUC8i3BEH:pvrJ72753-305:rvnIntelCorporation:rnNUC8BEB:rvrJ72693-306:cvnIntelCorporation:ct35:cvr2.0:
dmi.product.family: Intel NUC
dmi.product.name: NUC8i3BEH
dmi.product.sku: BOXNUC8i3BEH
dmi.product.version: J72753-305
dmi.sys.vendor: Intel(R) Client Systems
hciconfig:
hci0: Type: Primary Bus: USB
BD Address: 04:EA:56:21:1E:D3 ACL MTU: 1021:4 SCO MTU: 96:6
UP RUNNING
RX bytes:17030 acl:0 sco:0 events:2764 errors:0
TX bytes:677849 acl:0 sco:0 commands:2757 errors:0
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