[Bug 2166700] Re: Bluetooth won't start after upgrading Ubuntu kernel to 139

Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2166700 Title: Bluetooth won't start after upgrading Ubuntu kernel to 139 Status in linux package in Ubuntu: Confirmed Bug description: I upgraded my Ubuntu kernel to 6.8.0-139-generic and after reboot i am unable to start my Bluetooth on my Asus F15-FX506HC laptop. Nothing i try works, only reverting to 138 fixes the issue. Please look into that I am attaching journalctl output presiyan@F15-FX506HC:~$ journalctl -b -k --no-pager | grep -iE 'Bluetooth|btmtk|btusb|hci0|Oops|NULL pointer|BUG:' | tee ~/bt-139-kernel.log Sep 07 18:15:37 F15-FX506HC kernel: Bluetooth: Core ver 2.22 Sep 07 18:15:37 F15-FX506HC kernel: NET: Registered PF_BLUETOOTH protocol family Sep 07 18:15:37 F15-FX506HC kernel: Bluetooth: HCI device and connection manager initialized Sep 07 18:15:37 F15-FX506HC kernel: Bluetooth: HCI socket layer initialized Sep 07 18:15:37 F15-FX506HC kernel: Bluetooth: L2CAP socket layer initialized Sep 07 18:15:37 F15-FX506HC kernel: Bluetooth: SCO socket layer initialized Sep 07 18:15:38 F15-FX506HC kernel: usbcore: registered new interface driver btusb Sep 07 18:15:38 F15-FX506HC kernel: Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20240219111427 Sep 07 18:15:38 F15-FX506HC kernel: BUG: kernel NULL pointer dereference, address: 0000000000000219 Sep 07 18:15:38 F15-FX506HC kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI Sep 07 18:15:38 F15-FX506HC kernel: Workqueue: hci0 hci_power_on [bluetooth] Sep 07 18:15:38 F15-FX506HC kernel: btmtk_usb_hci_wmt_sync+0xa9/0x2e0 [btmtk] Sep 07 18:15:38 F15-FX506HC kernel: ? __pfx_btmtk_usb_hci_wmt_sync+0x10/0x10 [btmtk] Sep 07 18:15:38 F15-FX506HC kernel: btmtk_setup_firmware_79xx+0x1c7/0x360 [btmtk] Sep 07 18:15:38 F15-FX506HC kernel: btusb_mtk_setup+0x453/0x610 [btusb] Sep 07 18:15:38 F15-FX506HC kernel: hci_dev_setup_sync+0x6c/0x430 [bluetooth] Sep 07 18:15:38 F15-FX506HC kernel: hci_dev_init_sync+0x3e/0x1c0 [bluetooth] Sep 07 18:15:38 F15-FX506HC kernel: hci_dev_open_sync+0xb1/0x350 [bluetooth] Sep 07 18:15:38 F15-FX506HC kernel: hci_dev_do_open+0x28/0x70 [bluetooth] Sep 07 18:15:38 F15-FX506HC kernel: hci_power_on+0x50/0x210 [bluetooth] Sep 07 18:15:38 F15-FX506HC kernel: Modules linked in: snd_usb_audio(+) snd_pcm_dmaengine mt76_connac_lib btusb irqbypass btrtl snd_hda_intel mt76 crct10dif_pclmul btintel snd_intel_dspcfg polyval_clmulni snd_usbmidi_lib btbcm snd_intel_sdw_acpi polyval_generic btmtk snd_ump ghash_clmulni_intel snd_hda_codec snd_seq_midi nouveau(+) mac80211 sha256_ssse3 snd_seq_midi_event cmdlinepart bluetooth snd_hda_core uvcvideo spi_nor sha1_ssse3 snd_rawmidi videobuf2_vmalloc aesni_intel uvc videobuf2_memops videobuf2_v4l2 snd_hwdep asus_nb_wmi mfd_aaeon crypto_simd ee1004 mtd mei_hdcp mei_pxp intel_rapl_msr cryptd ecdh_generic videodev snd_seq asus_wmi mxm_wmi ecc rapl cfg80211 snd_pcm ledtrig_audio videobuf2_common i2c_i801 platform_profile drm_gpuvm spi_intel_pci snd_seq_device intel_cstate wmi_bmof i915(+) mc spi_intel libarc4 i2c_smbus snd_timer drm_exec mei_me snd gpu_sched mei processor_thermal_device_pci_legacy soundcore drm_ttm_helper processor_thermal_device drm_buddy processor_thermal_wt_hint ttm processor_thermal_rfim processor_thermal_rapl Sep 07 18:15:38 F15-FX506HC kernel: Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Sep 07 18:15:38 F15-FX506HC kernel: Bluetooth: BNEP filters: protocol multicast Sep 07 18:15:38 F15-FX506HC kernel: Bluetooth: BNEP socket layer initialized ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.8.0-139-generic 6.8.0-139.139 ProcVersionSignature: Ubuntu 6.8.0-139.139-generic 6.8.12 Uname: Linux 6.8.0-139-generic x86_64 ApportVersion: 2.28.3-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: presiyan 3076 F.... wireplumber /dev/snd/controlC1: presiyan 3076 F.... wireplumber /dev/snd/controlC0: presiyan 3076 F.... wireplumber /dev/snd/seq: presiyan 3072 F.... pipewire CRDA: N/A CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Sep 7 18:16:43 2026 InstallationDate: Installed on 2023-12-27 (985 days ago) InstallationMedia: Ubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.2) MachineType: ASUSTeK COMPUTER INC. ASUS TUF Gaming F15 FX506HC_FX506HC ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-139-generic root=UUID=a5e9d595-c55d-467f-9724-ea5097813566 ro quiet splash pcie_aspm=off rfkill.default_state=1 asus_wmi.fnlock_default=0 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.8.0-139-generic N/A linux-backports-modules-6.8.0-139-generic N/A linux-firmware 20240318.git3b128b60.0ubuntu3.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/17/2025 dmi.bios.release: 5.19 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: FX506HC.316 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: FX506HC 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.ec.firmware.release: 3.10 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrFX506HC.316:bd06/17/2025:br5.19:efr3.10:svnASUSTeKCOMPUTERINC.:pnASUSTUFGamingF15FX506HC_FX506HC:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnFX506HC:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku: dmi.product.family: ASUS TUF Gaming F15 dmi.product.name: ASUS TUF Gaming F15 FX506HC_FX506HC dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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