Thanks for the bug report.
It appears you have modified Bluetooth binaries that are not from Ubuntu
so we can't support them here. The only supported version of bluez on
Ubuntu 20.04 is 5.53-0ubuntu3.5.
Although I do note that you are using:
Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
and that Cambridge Silicon Radio dongles are notoriously buggy. So I
would first recommend trying a different brand of Bluetooth dongle.
Unfortunately it is hard to know what chipset is inside before you buy
it.
If you would like to continue with bug reports then please start by
installing the Ubuntu-provided bluez packages and then open a new bug.
** Changed in: bluez (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1962769
Title:
Could not receive advertising events: Broken pipe
Status in bluez package in Ubuntu:
Invalid
Bug description:
If a host has 2 adapters, the scanner run for a few second then get an
error msg Could not receive advertising events: Broken pipe, then hci0
turns down when I run hciconfig
hci0: Type: Primary Bus: USB
BD Address: 00:1A:7D:DA:71:13 ACL MTU: 310:10 SCO MTU: 64:8
DOWN
RX bytes:574 acl:0 sco:0 events:30 errors:0
TX bytes:368 acl:0 sco:0 commands:30 errors:0
hci1: Type: Primary Bus: USB
BD Address: 00:1A:7D:DA:71:13 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:221883 acl:0 sco:0 events:8327 errors:0
TX bytes:1027 acl:0 sco:0 commands:67 errors:0
This happend after I updated bluez from 5.62 to 5.63.
If I do scan again, everything works fine with one adapter.
As both adapters use the same mac address, I changed the address of hci0
hci0: Type: Primary Bus: USB
BD Address: 00:01:07:00:47:0E ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:1184 acl:0 sco:0 events:66 errors:0
TX bytes:1072 acl:0 sco:0 commands:66 errors:0
hci1: Type: Primary Bus: USB
BD Address: 00:1A:7D:DA:71:13 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:221961 acl:0 sco:0 events:8340 errors:0
TX bytes:3078 acl:0 sco:0 commands:80 errors:0
but the old address keeps reverted back which was not the case in 5.62
I ran scan again while running btmon
@ MGMT Event: Command Complete (0x0001) plen 283 {0x0001} [hci0]
1052.238244
Read Controller Information (0x0004) plen 280
Status: Success (0x00)
Address: 00:1A:7D:DA:71:13 (cyber-blue(HK)Ltd)
Version: Bluetooth 4.0 (0x06)
Manufacturer: Cambridge Silicon Radio (10)
Supported settings: 0x0001beff
Powered
Connectable
Fast Connectable
Discoverable
Bondable
Link Security
Secure Simple Pairing
BR/EDR
Low Energy
Advertising
Secure Connections
Debug Keys
Privacy
Static Address
PHY Configuration
Current settings: 0x00000080
BR/EDR
Class: 0x000000
Major class: Miscellaneous
Minor class: 0x00
Name: CSR8510 A10
Short name:
= bluetoothd: Failed to start listening: l2cap_bind: Address al..
1052.238720
= bluetoothd: Failed to create GATT database for adapter [hci0]
1052.238742
= bluetoothd: Unable to register new adapter [hci0]
1052.238761
= Close Index: 00:1A:7D:DA:71:13 [hci0]
1054.246981
@ MGMT Event: Index Added (0x0004) plen 0
{0x0001} [hci0] 98.950611
@ MGMT Command: Read Controller Information (0x0004) plen 0
{0x0001} [hci0] 98.950707
@ MGMT Event: Command Complete (0x0001) plen 283
{0x0001} [hci0] 98.950714
Read Controller Information (0x0004) plen 280
Status: Success (0x00)
Address: 00:1A:7D:DA:71:13 (cyber-blue(HK)Ltd)
Version: Bluetooth 4.0 (0x06)
Manufacturer: Cambridge Silicon Radio (10)
Supported settings: 0x0001beff
Powered
Connectable
Fast Connectable
Discoverable
Bondable
Link Security
Secure Simple Pairing
BR/EDR
Low Energy
Advertising
Secure Connections
Debug Keys
Privacy
Static Address
PHY Configuration
Current settings: 0x00000080
BR/EDR
Class: 0x000000
Major class: Miscellaneous
Minor class: 0x00
Name: CSR8510 A10
Short name:
= bluetoothd: Failed to start listening: l2cap_bind: Address already in use
(98)
98.951201
= bluetoothd: Failed to create GATT database for adapter
[hci0] 98.951229
= bluetoothd: Unable to register new adapter
[hci0] 98.951248
= Close Index: 00:1A:7D:DA:71:13
[hci0] 100.967001
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InterestingModules: bnep btusb bluetooth
MachineType: Dell Inc. OptiPlex 980
Package: bluez 5.53-0ubuntu3.4 [modified: usr/bin/bluemoon
usr/bin/bluetoothctl usr/bin/btattach usr/bin/btmon usr/bin/hex2hcd
usr/bin/l2ping usr/bin/l2test usr/bin/rctest]
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-91-generic
root=UUID=efa9b1c2-c6aa-11e8-a90c-b8ac6f9e2c98 ro
ProcVersionSignature: Ubuntu 5.4.0-91.102-generic 5.4.151
Tags: focal uec-images
Uname: Linux 5.4.0-91-generic x86_64
UpgradeStatus: Upgraded to focal on 2020-09-06 (542 days ago)
UserGroups: adm cdrom dip docker lxd netdev plugdev sudo
_MarkForUpload: True
acpidump:
Error: command ['pkexec', '/usr/share/apport/dump_acpi_tables.py'] failed
with exit code 127: Error executing command as another user: Not authorized
This incident has been reported.
dmi.bios.date: 02/16/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: 0D441T
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA01:bd02/16/2010:svnDellInc.:pnOptiPlex980:pvr:rvnDellInc.:rn0D441T:rvrA00:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 980
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.bluetooth.main.conf: 2022-03-02T10:48:10.933611
mtime.conffile..etc.dbus-1.system.d.bluetooth.conf: 2022-03-02T10:47:40.322184
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