Public bug reported:
Put dongle to rpi.
sudo dmesg
[ 48.035699] usb 2-1: USB disconnect, device number 2
[ 54.443656] usb 2-1: new full-speed USB device number 4 using xhci-hcd
[ 54.593628] usb 2-1: New USB device found, idVendor=0bda, idProduct=876e,
bcdDevice= 2.00
[ 54.593639] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 54.593643] usb 2-1: Product: Bluetooth Radio
[ 54.593647] usb 2-1: Manufacturer: Realtek
[ 54.593651] usb 2-1: SerialNumber: 00E04C239987
[ 54.614664] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b
lmp_ver=0a lmp_subver=8761
[ 54.617682] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 54.617693] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ 54.618063] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
[ 54.618138] Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210
[ 57.354681] Bluetooth: hci0: command 0xfc20 tx timeout
[ 57.359865] Bluetooth: hci0: RTL: Failed to generate devcoredump
[ 57.359872] Bluetooth: hci0: RTL: download fw command failed (-110)
$ hciconfig -a
hci0: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:862 acl:0 sco:0 events:122 errors:0
TX bytes:30704 acl:0 sco:0 commands:123 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: PERIPHERAL ACCEPT
Put dongle to laptop
sudo dmesg
[ 376.974554] usb 2-2: new full-speed USB device number 6 using xhci_hcd
[ 377.101442] usb 2-2: New USB device found, idVendor=0bda, idProduct=876e,
bcdDevice= 2.00
[ 377.101453] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 377.101456] usb 2-2: Product: Bluetooth Radio
[ 377.101458] usb 2-2: Manufacturer: Realtek
[ 377.101460] usb 2-2: SerialNumber: 00E04C239987
[ 377.108149] Bluetooth: hci1: RTL: examining hci_ver=0a hci_rev=000b
lmp_ver=0a lmp_subver=8761
[ 377.109127] Bluetooth: hci1: RTL: rom_version status=0 version=1
[ 377.109134] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ 377.112183] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_config.bin
[ 377.112278] Bluetooth: hci1: RTL: cfg_sz 6, total sz 30210
[ 377.261223] Bluetooth: hci1: RTL: fw version 0xdfc6d922
[ 377.328368] Bluetooth: MGMT ver 1.22
hciconfig -a
hci1: Type: Primary Bus: USB
BD Address: 00:E0:4C:31:60:AF ACL MTU: 1021:6 SCO MTU: 255:12
UP RUNNING
RX bytes:1670 acl:0 sco:0 events:184 errors:0
TX bytes:33916 acl:0 sco:0 commands:184 errors:0
Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: PERIPHERAL ACCEPT
Name: 'marek-Latitude-E7250 #2'
Class: 0x6c010c
Service Classes: Rendering, Capturing, Audio, Telephony
Device Class: Computer, Laptop
HCI Version: 5.1 (0xa) Revision: 0xdfc6
LMP Version: 5.1 (0xa) Subversion: 0xd922
Manufacturer: Realtek Semiconductor Corporation (93)
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-firmware 20240318.git3b128b60-0ubuntu2.10
ProcVersionSignature: Ubuntu 6.8.0-1020.24-raspi 6.8.12
Uname: Linux 6.8.0-1020-raspi aarch64
AlsaVersion: Advanced Linux Sound Architecture Driver Version k6.8.0-1020-raspi.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.28.1-0ubuntu3.5
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/timer',
'/dev/snd/seq', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/by-path',
'/dev/snd/pcmC1D0p', '/dev/snd/controlC1'] failed with exit code 1:
CRDA: N/A
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
CasperMD5CheckResult: unknown
CloudArchitecture: aarch64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: config-disk (/dev/mmcblk0p1)
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
Date: Sun Mar 23 20:27:18 2025
Dependencies: firmware-sof-signed 2023.12.1-1ubuntu1.4
Lspci-vt: -[0000:00]---00.0-[01]----00.0 Raspberry Pi Ltd RP1 PCIe 2.0 South
Bridge
PciMultimedia:
ProcEnviron:
LANG=C.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB:
ProcKernelCmdLine: reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe
snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1
smsc95xx.macaddr=2C:CF:67:88:2B:A3 vc_mem.mem_base=0x3fc00000
vc_mem.mem_size=0x40000000 console=ttyAMA10,115200 multipath=off
dwc_otg.lpm_enable=0 console=tty1 root=LABEL=writable rootfstype=ext4 rootwait
fixrtc cfg80211.ieee80211_regdom=PL
RelatedPackageVersions:
linux-restricted-modules-6.8.0-1020-raspi N/A
linux-backports-modules-6.8.0-1020-raspi N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.10
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux-firmware
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug arm64 noble
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https://bugs.launchpad.net/bugs/2103946
Title:
BT dongle do not work on RPI Ubuntu but work well on "laptop" Ubuntu
Status in linux-firmware package in Ubuntu:
New
Bug description:
Put dongle to rpi.
sudo dmesg
[ 48.035699] usb 2-1: USB disconnect, device number 2
[ 54.443656] usb 2-1: new full-speed USB device number 4 using xhci-hcd
[ 54.593628] usb 2-1: New USB device found, idVendor=0bda, idProduct=876e,
bcdDevice= 2.00
[ 54.593639] usb 2-1: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 54.593643] usb 2-1: Product: Bluetooth Radio
[ 54.593647] usb 2-1: Manufacturer: Realtek
[ 54.593651] usb 2-1: SerialNumber: 00E04C239987
[ 54.614664] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b
lmp_ver=0a lmp_subver=8761
[ 54.617682] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 54.617693] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ 54.618063] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
[ 54.618138] Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210
[ 57.354681] Bluetooth: hci0: command 0xfc20 tx timeout
[ 57.359865] Bluetooth: hci0: RTL: Failed to generate devcoredump
[ 57.359872] Bluetooth: hci0: RTL: download fw command failed (-110)
$ hciconfig -a
hci0: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:862 acl:0 sco:0 events:122 errors:0
TX bytes:30704 acl:0 sco:0 commands:123 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: PERIPHERAL ACCEPT
Put dongle to laptop
sudo dmesg
[ 376.974554] usb 2-2: new full-speed USB device number 6 using xhci_hcd
[ 377.101442] usb 2-2: New USB device found, idVendor=0bda, idProduct=876e,
bcdDevice= 2.00
[ 377.101453] usb 2-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 377.101456] usb 2-2: Product: Bluetooth Radio
[ 377.101458] usb 2-2: Manufacturer: Realtek
[ 377.101460] usb 2-2: SerialNumber: 00E04C239987
[ 377.108149] Bluetooth: hci1: RTL: examining hci_ver=0a hci_rev=000b
lmp_ver=0a lmp_subver=8761
[ 377.109127] Bluetooth: hci1: RTL: rom_version status=0 version=1
[ 377.109134] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_fw.bin
[ 377.112183] Bluetooth: hci1: RTL: loading rtl_bt/rtl8761bu_config.bin
[ 377.112278] Bluetooth: hci1: RTL: cfg_sz 6, total sz 30210
[ 377.261223] Bluetooth: hci1: RTL: fw version 0xdfc6d922
[ 377.328368] Bluetooth: MGMT ver 1.22
hciconfig -a
hci1: Type: Primary Bus: USB
BD Address: 00:E0:4C:31:60:AF ACL MTU: 1021:6 SCO MTU: 255:12
UP RUNNING
RX bytes:1670 acl:0 sco:0 events:184 errors:0
TX bytes:33916 acl:0 sco:0 commands:184 errors:0
Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: PERIPHERAL ACCEPT
Name: 'marek-Latitude-E7250 #2'
Class: 0x6c010c
Service Classes: Rendering, Capturing, Audio, Telephony
Device Class: Computer, Laptop
HCI Version: 5.1 (0xa) Revision: 0xdfc6
LMP Version: 5.1 (0xa) Subversion: 0xd922
Manufacturer: Realtek Semiconductor Corporation (93)
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-firmware 20240318.git3b128b60-0ubuntu2.10
ProcVersionSignature: Ubuntu 6.8.0-1020.24-raspi 6.8.12
Uname: Linux 6.8.0-1020-raspi aarch64
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k6.8.0-1020-raspi.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.28.1-0ubuntu3.5
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/timer',
'/dev/snd/seq', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/by-path',
'/dev/snd/pcmC1D0p', '/dev/snd/controlC1'] failed with exit code 1:
CRDA: N/A
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
CasperMD5CheckResult: unknown
CloudArchitecture: aarch64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: config-disk (/dev/mmcblk0p1)
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
Date: Sun Mar 23 20:27:18 2025
Dependencies: firmware-sof-signed 2023.12.1-1ubuntu1.4
Lspci-vt: -[0000:00]---00.0-[01]----00.0 Raspberry Pi Ltd RP1 PCIe 2.0 South
Bridge
PciMultimedia:
ProcEnviron:
LANG=C.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB:
ProcKernelCmdLine: reboot=w coherent_pool=1M 8250.nr_uarts=1
pci=pcie_bus_safe snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1
smsc95xx.macaddr=2C:CF:67:88:2B:A3 vc_mem.mem_base=0x3fc00000
vc_mem.mem_size=0x40000000 console=ttyAMA10,115200 multipath=off
dwc_otg.lpm_enable=0 console=tty1 root=LABEL=writable rootfstype=ext4 rootwait
fixrtc cfg80211.ieee80211_regdom=PL
RelatedPackageVersions:
linux-restricted-modules-6.8.0-1020-raspi N/A
linux-backports-modules-6.8.0-1020-raspi N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.10
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux-firmware
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:
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