Public bug reported: What I expected: Bluetooth works reliably without manual intervention after boot
What actually happened: Bluetooth adapter becomes unresponsive on kernel 6.8.0-106-generic with Intel Arrow Lake-U hardware. Plain service restart (systemctl restart bluetooth) does not fix it. Only a full driver reload works: sudo modprobe -r btusb && sleep 2 && sudo modprobe btusb && sleep 2 && sudo systemctl restart bluetooth Steps to reproduce: 1. Boot Ubuntu 24.04 with kernel 6.8.0-106-generic 2. Use bluetooth for a period of time 3. Bluetooth becomes unresponsive 4. systemctl restart bluetooth does not restore it 5. Full modprobe reload required to recover More info: [ 0.195423] ACPI: \_SB_.PC02.XHCI.RHUB.HS14.BTRT: New power resource [ 0.195446] ACPI: \_SB_.PC02.XHCI.RHUB.HS14.DBTR: New power resource [ 0.959201] sdhci: Secure Digital Host Controller Interface driver [ 0.959206] sdhci: Copyright(c) Pierre Ossman [ 0.965810] xhci_hcd 0000:00:0d.0: xHCI Host Controller [ 0.965817] xhci_hcd 0000:00:0d.0: new USB bus registered, assigned bus number 1 [ 0.967001] xhci_hcd 0000:00:0d.0: hcc params 0x20007fc1 hci version 0x120 quirks 0x0000000200009810 [ 0.968776] sdhci-pci 0000:81:00.0: SDHCI controller found [17a0:9755] (rev 1) [ 0.968912] sdhci-pci 0000:81:00.0: enabling device (0000 -> 0002) [ 0.969788] xhci_hcd 0000:00:0d.0: xHCI Host Controller [ 0.969791] xhci_hcd 0000:00:0d.0: new USB bus registered, assigned bus number 2 [ 0.969793] xhci_hcd 0000:00:0d.0: Host supports USB 3.2 Enhanced SuperSpeed [ 0.969833] usb usb1: Product: xHCI Host Controller [ 0.969834] usb usb1: Manufacturer: Linux 6.8.0-106-generic xhci-hcd [ 0.975683] usb usb2: Product: xHCI Host Controller [ 0.975684] usb usb2: Manufacturer: Linux 6.8.0-106-generic xhci-hcd [ 0.992871] xhci_hcd 0000:80:14.0: xHCI Host Controller [ 0.992873] xhci_hcd 0000:80:14.0: new USB bus registered, assigned bus number 3 [ 0.996478] xhci_hcd 0000:80:14.0: hcc params 0x20007fc1 hci version 0x120 quirks 0x0000000200009810 [ 1.008310] xhci_hcd 0000:80:14.0: xHCI Host Controller [ 1.008311] xhci_hcd 0000:80:14.0: new USB bus registered, assigned bus number 4 [ 1.008313] xhci_hcd 0000:80:14.0: Host supports USB 3.2 Enhanced SuperSpeed [ 1.008331] usb usb3: Product: xHCI Host Controller [ 1.008332] usb usb3: Manufacturer: Linux 6.8.0-106-generic xhci-hcd [ 1.010222] usb usb4: Product: xHCI Host Controller [ 1.010222] usb usb4: Manufacturer: Linux 6.8.0-106-generic xhci-hcd [ 1.024556] mmc0: SDHCI controller on PCI [0000:81:00.0] using ADMA 64-bit [ 1.247256] usb 3-2: new full-speed USB device number 2 using xhci_hcd [ 1.497216] usb 3-3: new full-speed USB device number 3 using xhci_hcd [ 1.745158] usb 3-4: new full-speed USB device number 4 using xhci_hcd [ 2.008153] usb 3-7: new full-speed USB device number 5 using xhci_hcd [ 2.273164] usb 3-10: new full-speed USB device number 6 using xhci_hcd [ 2.519261] usb 3-11: new high-speed USB device number 7 using xhci_hcd [ 2.769262] usb 3-14: new high-speed USB device number 8 using xhci_hcd [ 2.969936] Bluetooth: Core ver 2.22 [ 2.969950] NET: Registered PF_BLUETOOTH protocol family [ 2.969952] Bluetooth: HCI device and connection manager initialized [ 2.969954] Bluetooth: HCI socket layer initialized [ 2.969956] Bluetooth: L2CAP socket layer initialized [ 2.969957] Bluetooth: SCO socket layer initialized [ 2.974701] usbcore: registered new interface driver btusb [ 2.976113] Bluetooth: hci0: HW/SW Version: 0x00000000, Build Time: 20251210093205 [ 3.275493] Bluetooth: hci0: Device setup in 293715 usecs [ 3.275497] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported. [ 3.295927] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 3.295930] Bluetooth: BNEP filters: protocol multicast [ 3.295933] Bluetooth: BNEP socket layer initialized [ 3.376499] Bluetooth: hci0: AOSP extensions version v1.00 [ 3.376503] Bluetooth: hci0: AOSP quality report is supported [ 3.388439] Bluetooth: MGMT ver 1.22 [ 4.647861] Bluetooth: RFCOMM TTY layer initialized [ 4.647868] Bluetooth: RFCOMM socket layer initialized [ 4.647872] Bluetooth: RFCOMM ver 1.11 [ 48.175023] usbcore: deregistering interface driver btusb [ 50.266424] Bluetooth: hci0: HW/SW Version: 0x00000000, Build Time: 20251210093205 [ 50.266440] usbcore: registered new interface driver btusb [ 50.569084] Bluetooth: hci0: Device setup in 296469 usecs [ 50.569091] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported. [ 50.654746] Bluetooth: hci0: AOSP extensions version v1.00 [ 50.654752] Bluetooth: hci0: AOSP quality report is supported [ 50.667197] Bluetooth: MGMT ver 1.22 [ 204.354029] usb 3-1: new high-speed USB device number 9 using xhci_hcd [ 217.331417] usb 3-14: reset high-speed USB device number 8 using xhci_hcd [ 217.579231] usb 3-14: reset high-speed USB device number 8 using xhci_hcd 6.8.0-106-generic PRETTY_NAME="Ubuntu 24.04.4 LTS" NAME="Ubuntu" VERSION_ID="24.04" VERSION="24.04.4 LTS (Noble Numbat)" VERSION_CODENAME=noble ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/"; SUPPORT_URL="https://help.ubuntu.com/"; BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; UBUNTU_CODENAME=noble LOGO=ubuntu-logo PRETTY_NAME="Ubuntu 24.04.4 LTS" NAME="Ubuntu" VERSION_ID="24.04" VERSION="24.04.4 LTS (Noble Numbat)" VERSION_CODENAME=noble ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/"; SUPPORT_URL="https://help.ubuntu.com/"; BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; UBUNTU_CODENAME=noble LOGO=ubuntu-logo ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.8.0-106-generic 6.8.0-106.106 ProcVersionSignature: Ubuntu 6.8.0-106.106-generic 6.8.12 Uname: Linux 6.8.0-106-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lava 3009 F.... wireplumber /dev/snd/controlC0: lava 3009 F.... wireplumber /dev/snd/seq: lava 3004 F.... pipewire CasperMD5CheckMismatches: ./casper/minimal.squashfs ./casper/minimal.standard.enhanced-secureboot.squashfs CasperMD5CheckResult: fail CurrentDesktop: ubuntu:GNOME Date: Mon Mar 16 15:45:49 2026 InstallationDate: Installed on 2026-03-14 (2 days ago) InstallationMedia: Ubuntu 24.04.4 LTS "Noble Numbat" - Release amd64 (20260210) MachineType: LENOVO 83KY ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 i915drmfb 1 nvidia-drmdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-106-generic root=UUID=0c2064f2-7982-45b8-a6a8-dec0f1189d26 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.8.0-106-generic N/A linux-backports-modules-6.8.0-106-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.25 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/20/2025 dmi.bios.release: 1.27 dmi.bios.vendor: LENOVO dmi.bios.version: RXCN27WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0T76461 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Legion 7 16IAX10 dmi.ec.firmware.release: 1.24 dmi.modalias: dmi:bvnLENOVO:bvrRXCN27WW:bd11/20/2025:br1.27:efr1.24:svnLENOVO:pn83KY:pvrLegion716IAX10:rvnLENOVO:rnLNVNB161216:rvrSDK0T76461WIN:cvnLENOVO:ct10:cvrLegion716IAX10:skuLENOVO_MT_83KY_BU_idea_FM_Legion716IAX10: dmi.product.family: Legion 7 16IAX10 dmi.product.name: 83KY dmi.product.sku: LENOVO_MT_83KY_BU_idea_FM_Legion 7 16IAX10 dmi.product.version: Legion 7 16IAX10 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: arrow-lake bluetooth btusb kernel-daily-bug regression ** Tags added: arrow-lake btusb regression -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2144611 Title: btusb driver enters bad state on Intel Arrow Lake-U, requires full module reload to recover To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2144611/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
