Public bug reported:
The Intel Bluetooth controller on an ASUS Vivobook 14 (X1404VA) crashes
repeatedly while a Bluetooth HID device is connected. Each crash logs
"Bluetooth: hci0: Hardware error 0x0c" followed by "Exception info". The
connected mouse/keyboard disconnects and reconnects a second or two
later, which can happen every few seconds.
Sometimes the controller stops responding entirely and the kernel resets it:
Bluetooth: hci0: Opcode 0x2042 failed: -110
Bluetooth: hci0: command 0x2042 tx timeout
Bluetooth: hci0: Initiating acpi reset method
Bluetooth: hci0: Reset after hardware error failed (-19)
After that, the controller comes back as hci1 and loads its firmware again.
Steps to reproduce:
1. Pair and connect a Bluetooth mouse (reproduced with a Logitech MX Master 3S
and a Logi M196; also a Logitech MX Mechanical keyboard).
2. Use the computer normally.
3. Watch: journalctl -k -f | grep -i bluetooth
Expected: the Bluetooth connection stays stable.
Actual: "Hardware error 0x0c" appears anywhere from every few seconds to every
few minutes, and the HID devices reconnect after each error.
Observations:
- Reproduced on kernels 7.0.0-14, 7.0.0-15 and 7.0.0-38-generic (crashes since
April 2026), so it does not look like a regression from one kernel update.
- Happens only while a Bluetooth HID device is connected, with different mice
from different product lines. The frequency varies a lot: some multi-day
sessions had no errors.
- Persists after a full power-off and cold boot.
- Wi-Fi is connected on 5 GHz (channel 161), so 2.4 GHz Wi-Fi/Bluetooth
coexistence seems unlikely to be the cause. iwlwifi bt_coex_active is at its
default (Y).
- Bluetooth USB autosuspend is not active (power/control = on).
System:
- Ubuntu 26.04.1 LTS, kernel 7.0.0-38-generic (7.0.0-38.38)
- ASUSTeK Vivobook X1404VA, BIOS X1404VA.313 (07/22/2025)
- Wi-Fi: Intel Wireless-AC 9462 (CNVi, PCI 8086:51f1), Raptor Lake PCH
- Bluetooth: USB 8087:0aaa, firmware intel/ibt-0040-1020.sfi, firmware version
151-5.24 (timestamp 2024.5, build 151)
- linux-firmware 20260319.git217ca6e4.1ubuntu
- BlueZ 5.85
---
ProblemType: Bug
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: junior 3443 F.... wireplumber
/dev/snd/seq: junior 3438 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 26.04
InstallationDate: Installed on 2026-04-28 (176 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 2b7e:b868 Sonix Technology Co., Ltd. ASUS HD webcam
Bus 001 Device 003: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson
Peak (JfP)
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: ASUSTeK COMPUTER INC. Vivobook_ASUSLaptop X1404VA_X1404VA
Package: linux (not installed)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-38-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
ProcVersionSignature: Ubuntu 7.0.0-38.38-generic 7.0.14
Tags: resolute wayland-session
Uname: Linux 7.0.0-38-generic x86_64
UpgradeStatus: Upgraded to resolute on 2026-04-28 (176 days ago)
UserGroups: adm cdrom dialout dip i2c input lpadmin plugdev sudo uinput users
_MarkForUpload: True
dmi.bios.date: 07/22/2025
dmi.bios.release: 5.27
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: X1404VA.313
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X1404VA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrX1404VA.313:bd07/22/2025:br5.27:svnASUSTeKCOMPUTERINC.:pnVivobook_ASUSLaptopX1404VA_X1404VA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX1404VA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaVivobook:
dmi.product.family: Vivobook
dmi.product.name: Vivobook_ASUSLaptop X1404VA_X1404VA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-collected resolute wayland-session
** Tags added: apport-collected resolute wayland-session
** Description changed:
The Intel Bluetooth controller on an ASUS Vivobook 14 (X1404VA) crashes
repeatedly while a Bluetooth HID device is connected. Each crash logs
"Bluetooth: hci0: Hardware error 0x0c" followed by "Exception info". The
connected mouse/keyboard disconnects and reconnects a second or two
later, which can happen every few seconds.
Sometimes the controller stops responding entirely and the kernel resets it:
Bluetooth: hci0: Opcode 0x2042 failed: -110
Bluetooth: hci0: command 0x2042 tx timeout
Bluetooth: hci0: Initiating acpi reset method
Bluetooth: hci0: Reset after hardware error failed (-19)
After that, the controller comes back as hci1 and loads its firmware again.
Steps to reproduce:
1. Pair and connect a Bluetooth mouse (reproduced with a Logitech MX Master
3S and a Logi M196; also a Logitech MX Mechanical keyboard).
2. Use the computer normally.
3. Watch: journalctl -k -f | grep -i bluetooth
Expected: the Bluetooth connection stays stable.
Actual: "Hardware error 0x0c" appears anywhere from every few seconds to
every few minutes, and the HID devices reconnect after each error.
Observations:
- Reproduced on kernels 7.0.0-14, 7.0.0-15 and 7.0.0-38-generic (crashes
since April 2026), so it does not look like a regression from one kernel update.
- Happens only while a Bluetooth HID device is connected, with different mice
from different product lines. The frequency varies a lot: some multi-day
sessions had no errors.
- Persists after a full power-off and cold boot.
- Wi-Fi is connected on 5 GHz (channel 161), so 2.4 GHz Wi-Fi/Bluetooth
coexistence seems unlikely to be the cause. iwlwifi bt_coex_active is at its
default (Y).
- Bluetooth USB autosuspend is not active (power/control = on).
System:
- Ubuntu 26.04.1 LTS, kernel 7.0.0-38-generic (7.0.0-38.38)
- ASUSTeK Vivobook X1404VA, BIOS X1404VA.313 (07/22/2025)
- Wi-Fi: Intel Wireless-AC 9462 (CNVi, PCI 8086:51f1), Raptor Lake PCH
- Bluetooth: USB 8087:0aaa, firmware intel/ibt-0040-1020.sfi, firmware
version 151-5.24 (timestamp 2024.5, build 151)
- linux-firmware 20260319.git217ca6e4.1ubuntu
- BlueZ 5.85
+ ---
+ ProblemType: Bug
+ ApportVersion: 2.34.1-0ubuntu0.1
+ Architecture: amd64
+ AudioDevicesInUse:
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: junior 3443 F.... wireplumber
+ /dev/snd/seq: junior 3438 F.... pipewire
+ CasperMD5CheckResult: pass
+ CurrentDesktop: ubuntu:GNOME
+ DistroRelease: Ubuntu 26.04
+ InstallationDate: Installed on 2026-04-28 (176 days ago)
+ InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
+ Lsusb:
+ Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+ Bus 001 Device 002: ID 2b7e:b868 Sonix Technology Co., Ltd. ASUS HD webcam
+ Bus 001 Device 003: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson
Peak (JfP)
+ Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
+ MachineType: ASUSTeK COMPUTER INC. Vivobook_ASUSLaptop X1404VA_X1404VA
+ Package: linux (not installed)
+ ProcEnviron:
+ LANG=en_US.UTF-8
+ PATH=(custom, no user)
+ SHELL=/bin/bash
+ TERM=xterm-256color
+ XDG_RUNTIME_DIR=<set>
+ ProcFB: 0 i915drmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-38-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
+ ProcVersionSignature: Ubuntu 7.0.0-38.38-generic 7.0.14
+ Tags: resolute wayland-session
+ Uname: Linux 7.0.0-38-generic x86_64
+ UpgradeStatus: Upgraded to resolute on 2026-04-28 (176 days ago)
+ UserGroups: adm cdrom dialout dip i2c input lpadmin plugdev sudo uinput users
+ _MarkForUpload: True
+ dmi.bios.date: 07/22/2025
+ dmi.bios.release: 5.27
+ dmi.bios.vendor: American Megatrends International, LLC.
+ dmi.bios.version: X1404VA.313
+ dmi.board.asset.tag: ATN12345678901234567
+ dmi.board.name: X1404VA
+ dmi.board.vendor: ASUSTeK COMPUTER INC.
+ dmi.board.version: 1.0
+ dmi.chassis.asset.tag: No Asset Tag
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: ASUSTeK COMPUTER INC.
+ dmi.chassis.version: 1.0
+ dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrX1404VA.313:bd07/22/2025:br5.27:svnASUSTeKCOMPUTERINC.:pnVivobook_ASUSLaptopX1404VA_X1404VA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX1404VA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaVivobook:
+ dmi.product.family: Vivobook
+ dmi.product.name: Vivobook_ASUSLaptop X1404VA_X1404VA
+ dmi.product.version: 1.0
+ dmi.sys.vendor: ASUSTeK COMPUTER INC.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2171811
Title:
Intel Wireless-AC 9462 Bluetooth (8087:0aaa, ibt-0040-1020) repeatedly
crashes with "Hardware error 0x0c"
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