Allow me to emphasis again, this is not a kernel issue.
Bluetooth spec "3.1.1 Legacy and extended advertising":
If, since the last power-on or reset, the Host has ever issued
a legacy advertising command and then issues an extended
advertising command, or has ever issued an extended
advertising command and then issues a legacy advertising
command, the Controller shall return the error code Command
Disallowed (0x0C).
Basically it follows you shall not mix legacy/extended commands. It will
not be supported in the controller firmware as the specification says
so. Old kernels may work, because they don't have BLE extended command
set support at the time.
So please stop using hcitool. That's it.
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1870837
Title:
BLE not working; hcitool lescan says 'Set scan parameters failed:
Input/output error'; Ubuntu 20.04 kernel
Status in linux package in Ubuntu:
Invalid
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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