Public bug reported:
Summary
After upgrading to kernel 6.17.0-12-generic on Ubuntu 25.10, the built-
in Bluetooth device on a Framework laptop no longer enumerates.
Bluetooth works correctly when booting 6.17.0-8-generic.
System information
Laptop: Framework Laptop
Ubuntu version: 25.10
Secure Boot: enabled
Working kernel: 6.17.0-8-generic
Broken kernel: 6.17.0-12-generic
Description
Bluetooth worked out of the box on Ubuntu 25.10. After installing system
updates via Ubuntu Software Updater, Bluetooth stopped working and GNOME
shows:
“No Bluetooth found. Plug in a dongle to use Bluetooth.”
Investigation shows that on kernel 6.17.0-12 the Bluetooth device is not
enumerated at all. It does not appear in lsusb, /sys/class/bluetooth is
missing, and bluetooth.service is skipped due to unmet conditions.
Booting the previous kernel 6.17.0-8-generic restores Bluetooth
functionality immediately.
Steps to reproduce
Install Ubuntu 25.10 on Framework Laptop
Boot kernel 6.17.0-12-generic
Check Bluetooth availability
Expected result
Bluetooth device enumerates normally, appears in lsusb, and hci0 is
created.
Actual result
No Bluetooth device in lsusb
/sys/class/bluetooth missing
bluetooth.service skipped
GNOME reports “No Bluetooth found”
Regression test
Booting kernel 6.17.0-8-generic:
Bluetooth device enumerates
hci0 present
Bluetooth works normally
This confirms a kernel regression between 6.17.0-8 and 6.17.0-12.
Relevant logs (broken kernel 6.17.0-12)
Kernel messages observed during failure:
Bluetooth: hci0: Execution of wmt command timed out
Bluetooth: hci0: Failed to send wmt patch dwnld (-110)
Bluetooth: hci0: Failed to set up firmware (-110)
Later boots show no Bluetooth enumeration at all.
Workaround
Set kernel 6.17.0-8-generic as default via grub-set-default. Bluetooth
works reliably with this kernel.
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: linux-image-6.17.0-12-generic 6.17.0-12.12
ProcVersionSignature: Ubuntu 6.17.0-12.12-generic 6.17.2
Uname: Linux 6.17.0-12-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 2 12:54:36 2026
InstallationDate: Installed on 2026-01-11 (22 days ago)
InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
MachineType: Framework Laptop 13 (AMD Ryzen AI 300 Series)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-12-generic
root=UUID=b159aa30-b5e1-4be6-bb4f-de3bb8363a54 ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
vt.handoff=7
RelatedPackageVersions:
firmware-sof N/A
linux-firmware 20250901.git993ff19b-0ubuntu1.6
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/10/2025
dmi.bios.release: 3.4
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 03.04
dmi.board.asset.tag: *
dmi.board.name: FRANMGCP09
dmi.board.vendor: Framework
dmi.board.version: A9
dmi.chassis.asset.tag: FRANVCCPA95443001K
dmi.chassis.type: 10
dmi.chassis.vendor: Framework
dmi.chassis.version: A9
dmi.modalias:
dmi:bvnINSYDECorp.:bvr03.04:bd06/10/2025:br3.4:svnFramework:pnLaptop13(AMDRyzenAI300Series):pvrA9:rvnFramework:rnFRANMGCP09:rvrA9:cvnFramework:ct10:cvrA9:skuFRANVCCP09:
dmi.product.family: Laptop
dmi.product.name: Laptop 13 (AMD Ryzen AI 300 Series)
dmi.product.sku: FRANVCCP09
dmi.product.version: A9
dmi.sys.vendor: Framework
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug questing wayland-session
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https://bugs.launchpad.net/bugs/2139591
Title:
Bluetooth device not enumerated on Framework Laptop with kernel
6.17.0-12, works on 6.17.0-8
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