From: bugzilla-daemon@kernel.org
To: linux-bluetooth@vger.kernel.org
Subject: [Bug 221637] New: Regression for Intel Corporation Device a876 (rev 10)
Date: Wed, 10 Jun 2026 19:46:24 +0000 [thread overview]
Message-ID: <bug-221637-62941@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=221637
Bug ID: 221637
Summary: Regression for Intel Corporation Device a876 (rev 10)
Product: Drivers
Version: 2.5
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Bluetooth
Assignee: linux-bluetooth@vger.kernel.org
Reporter: furstenau+kernelbugWGvWw1PW1l@posteo.net
Regression: No
On my Dell Pro 14 Premium PA14250, the Bluetooth works with the firmware
version 20260309, but it regressed to not-working in 20260410 and it has not
been fixed as of 20260519. (Speculation: The firmware is crashing.) Via lspci,
the Bluetooth device is:
00:14.7 Bluetooth: Intel Corporation Device a876 (rev 10)
Two sample outputs of dmesg (first working, second not-working, both on NixOS
with the only configuration difference being the firmware override):
Kernel 7.0.11, Firmware 20260309 $ sudo dmesg | grep -i bluetooth
[ 13.782762] Bluetooth: Core ver 2.22
[ 13.782883] NET: Registered PF_BLUETOOTH protocol family
[ 13.782884] Bluetooth: HCI device and connection manager initialized
[ 13.782886] Bluetooth: HCI socket layer initialized
[ 13.782888] Bluetooth: L2CAP socket layer initialized
[ 13.782892] Bluetooth: SCO socket layer initialized
[ 13.805444] Bluetooth: hci0: Device revision is 0
[ 13.805449] Bluetooth: hci0: Secure boot is enabled
[ 13.805450] Bluetooth: hci0: OTP lock is disabled
[ 13.805450] Bluetooth: hci0: API lock is enabled
[ 13.805451] Bluetooth: hci0: Debug lock is disabled
[ 13.805452] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 13.805453] Bluetooth: hci0: Bootloader timestamp 2023.33 buildtype 1 build
45995
[ 13.806042] Bluetooth: hci0: Found device firmware:
intel/ibt-0190-0291-iml.sfi
[ 13.806046] Bluetooth: hci0: Boot Address: 0x30098800
[ 13.806046] Bluetooth: hci0: Firmware Version: 15-3.26
[ 13.860697] Bluetooth: hci0: Waiting for firmware download to complete
[ 13.860704] Bluetooth: hci0: Firmware loaded in 53377 usecs
[ 13.863006] Bluetooth: hci0: Waiting for device to boot
[ 13.863023] Bluetooth: hci0: Device booted in 2254 usecs
[ 13.863024] Bluetooth: hci0: Waiting for device transition to d0
[ 13.863025] Bluetooth: hci0: Device moved to D0 in 0 usecs
[ 13.863191] Bluetooth: hci0: dsbr: enable: 0x01 value: 0x0b
[ 13.866100] Bluetooth: hci0: Found device firmware:
intel/ibt-0190-0291-pci.sfi
[ 13.866112] Bluetooth: hci0: Boot Address: 0x10000800
[ 13.866113] Bluetooth: hci0: Firmware Version: 15-3.26
[ 14.395735] Bluetooth: hci0: Waiting for firmware download to complete
[ 14.395763] Bluetooth: hci0: Firmware loaded in 517244 usecs
[ 14.433393] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 14.433452] Bluetooth: hci0: Waiting for device to boot
[ 14.433861] Bluetooth: hci0: Device booted in 37190 usecs
[ 14.433862] Bluetooth: hci0: Waiting for device transition to d0
[ 14.433980] Bluetooth: hci0: Device moved to D0 in 115 usecs
[ 14.437701] Bluetooth: hci0: Found Intel DDC parameters:
intel/ibt-0190-0291-pci.ddc
[ 14.437877] Bluetooth: hci0: Applying Intel DDC parameters completed
[ 14.438188] Bluetooth: hci0: Firmware timestamp 2026.3 buildtype 1 build
9743
[ 14.438190] Bluetooth: hci0: Firmware SHA1: 0xd68504ef
[ 14.438460] Bluetooth: hci0: Fseq status: Success (0x00)
[ 14.438463] Bluetooth: hci0: Fseq executed: 00.00.04.202
[ 14.438464] Bluetooth: hci0: Fseq BT Top: 00.00.04.202
[ 15.814470] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 15.814476] Bluetooth: BNEP socket layer initialized
[ 15.815604] Bluetooth: MGMT ver 1.23
[ 28.005710] Bluetooth: RFCOMM TTY layer initialized
[ 28.005717] Bluetooth: RFCOMM socket layer initialized
[ 28.005719] Bluetooth: RFCOMM ver 1.11
Kernel 7.0.11, Firmware 20260519 $ sudo dmesg | grep -i bluetooth
[ 11.552083] Bluetooth: Core ver 2.22
[ 11.552591] NET: Registered PF_BLUETOOTH protocol family
[ 11.552593] Bluetooth: HCI device and connection manager initialized
[ 11.552596] Bluetooth: HCI socket layer initialized
[ 11.552598] Bluetooth: L2CAP socket layer initialized
[ 11.552600] Bluetooth: SCO socket layer initialized
[ 11.586234] Bluetooth: hci0: Device revision is 0
[ 11.586239] Bluetooth: hci0: Secure boot is enabled
[ 11.586239] Bluetooth: hci0: OTP lock is disabled
[ 11.586240] Bluetooth: hci0: API lock is enabled
[ 11.586240] Bluetooth: hci0: Debug lock is disabled
[ 11.586241] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 11.586242] Bluetooth: hci0: Bootloader timestamp 2023.33 buildtype 1 build
45995
[ 11.587640] Bluetooth: hci0: Found device firmware:
intel/ibt-0190-0291-iml.sfi
[ 11.587646] Bluetooth: hci0: Boot Address: 0x30098800
[ 11.587646] Bluetooth: hci0: Firmware Version: 99-13.26
[ 11.647652] Bluetooth: hci0: Waiting for firmware download to complete
[ 11.647659] Bluetooth: hci0: Firmware loaded in 58608 usecs
[ 11.649893] Bluetooth: hci0: Waiting for device to boot
[ 11.649927] Bluetooth: hci0: Device booted in 2205 usecs
[ 11.649927] Bluetooth: hci0: Waiting for device transition to d0
[ 11.649928] Bluetooth: hci0: Device moved to D0 in 0 usecs
[ 11.650058] Bluetooth: hci0: dsbr: enable: 0x01 value: 0x0b
[ 11.653394] Bluetooth: hci0: Found device firmware:
intel/ibt-0190-0291-pci.sfi
[ 11.653410] Bluetooth: hci0: Boot Address: 0x10000800
[ 11.653411] Bluetooth: hci0: Firmware Version: 99-13.26
[ 11.890541] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 11.891227] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 11.909517] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 11.932472] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 11.932823] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 11.937740] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 11.938063] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 12.229448] Bluetooth: hci0: Waiting for firmware download to complete
[ 12.229468] Bluetooth: hci0: Firmware loaded in 562566 usecs
[ 12.264949] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 12.264978] Bluetooth: hci0: Controller in error state
[ 13.444947] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 13.444957] Bluetooth: BNEP socket layer initialized
[ 15.238165] Bluetooth: hci0: Timeout (3000 ms) on alive interrupt, alive
context: intel_reset1
[ 15.238170] Bluetooth: hci0: Failed to send frame (-62)
[ 15.238171] Bluetooth: hci0: sending frame failed (-62)
[ 15.238199] Bluetooth: hci0: Failed to send Intel Reset command
[ 15.238208] Bluetooth: hci0: Intel Soft Reset failed (-62)
[ 15.238211] Bluetooth: hci0: Firmware download retry count: 1
[ 15.277649] Bluetooth: hci0: Device revision is 0
[ 15.277650] Bluetooth: hci0: Secure boot is enabled
[ 15.277651] Bluetooth: hci0: OTP lock is disabled
[ 15.277651] Bluetooth: hci0: API lock is enabled
[ 15.277652] Bluetooth: hci0: Debug lock is disabled
[ 15.277652] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 15.277653] Bluetooth: hci0: Bootloader timestamp 2023.33 buildtype 1 build
45995
[ 15.277855] Bluetooth: hci0: Found device firmware:
intel/ibt-0190-0291-iml.sfi
[ 15.277856] Bluetooth: hci0: Boot Address: 0x30098800
[ 15.277857] Bluetooth: hci0: Firmware Version: 99-13.26
[ 15.331235] Bluetooth: hci0: Waiting for firmware download to complete
[ 15.331248] Bluetooth: hci0: Firmware loaded in 52141 usecs
[ 15.333516] Bluetooth: hci0: Waiting for device to boot
[ 15.333518] Bluetooth: hci0: Device booted in 2200 usecs
[ 15.333519] Bluetooth: hci0: Waiting for device transition to d0
[ 15.333519] Bluetooth: hci0: Device moved to D0 in 0 usecs
[ 15.333705] Bluetooth: hci0: dsbr: enable: 0x01 value: 0x0b
[ 15.336014] Bluetooth: hci0: Found device firmware:
intel/ibt-0190-0291-pci.sfi
[ 15.336025] Bluetooth: hci0: Boot Address: 0x10000800
[ 15.336026] Bluetooth: hci0: Firmware Version: 99-13.26
[ 15.354944] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.381773] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.436473] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.437607] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.478120] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.479335] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.483759] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.487062] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.490408] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.500570] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.506638] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.506756] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.515964] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.517688] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.517933] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.532163] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.532282] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.635134] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.636578] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.636707] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.638224] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.638413] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.642802] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.643026] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.704576] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.704711] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.710823] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.734369] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.734563] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.753238] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.756902] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.757166] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.779988] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.780134] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.782630] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.782757] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.792866] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.952898] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.953061] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.956667] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.957829] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.957963] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.960131] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.960433] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 15.986218] Bluetooth: hci0: Waiting for firmware download to complete
[ 15.986223] Bluetooth: hci0: Firmware loaded in 634965 usecs
[ 16.021756] Bluetooth: hci0: Received gp1 mailbox interrupt
[ 16.021778] Bluetooth: hci0: Controller in error state
[ 19.013291] Bluetooth: hci0: Timeout (3000 ms) on alive interrupt, alive
context: intel_reset1
[ 19.013304] Bluetooth: hci0: Failed to send frame (-62)
[ 19.013307] Bluetooth: hci0: sending frame failed (-62)
[ 19.013333] Bluetooth: hci0: Failed to send Intel Reset command
[ 19.013359] Bluetooth: hci0: Intel Soft Reset failed (-62)
Regression originally reported downstream:
https://github.com/NixOS/nixpkgs/issues/530344
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next reply other threads:[~2026-06-10 19:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-10 19:46 bugzilla-daemon [this message]
2026-06-10 20:03 ` [Bug 221637] Regression for Intel Corporation Device a876 (rev 10) bugzilla-daemon
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