apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1872122/+attachment/5351533/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1872122
Title:
Kernel 4.19+: Bluetooth not working; Ubuntu 20.04
Status in linux package in Ubuntu:
Confirmed
Bug description:
New bug report for kernel:
After testing Ubuntu 20.04 on my Intel NUC (NUC8i3BEH) I found out, that
Bluetooth (LE) [hardware: Intel Wireless-AC 9560] isn't working; hcitool lescan
reports:
hcitool lescan
Set scan parameters failed: Input/output error
When the error occurs, btmon is reporting:
> HCI Event: Command Complete (0x0e) plen 4 #4 [hci0]
20:22:26.130058
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Command Disallowed (0x0c)
Beside the following error messages, there are no clues in the syslog
concerning the error as far as I can tell:
[ 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!
After testing the Ubuntu kernels I found out that this Bluetooth LE scanning
works just fine with Kernel 4.15 (Ubuntu 18.04 up to date standard kernel) and
Kernel 4.18 (Ubuntu 18.04.1 HWE EOL kernel).
The problem starts from kernel version 5.0 (Ubuntu 18.04.2 HWE kernel) and is
reproducible with the current Ubuntu 20.04 standard kernel.
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lightdm 5081 F.... pulseaudio
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-04-01 (8 days ago)
InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Beta amd64
(20200331)
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 (not installed)
ProcFB:
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
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.4.0-21-generic N/A
linux-backports-modules-5.4.0-21-generic N/A
linux-firmware 1.187
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: 03/09/2020
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BECFL357.86A.0078.2020.0309.1538
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.0078.2020.0309.1538:bd03/09/2020: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
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