Public bug reported: Dell machine with MediaTek MT7925 is missing Bluetooth functionality after upgrading to linux-oem-24.04c 6.17.0-1014.14 and linux-firmware 20240318.git3b128b60-0ubuntu2.26.
The Bluetooth is not listed in lsusb or rfkill list. This causes the bluetooth/detect test to fail. [Reproduce Steps] 1. Install Ubuntu Noble on the DUT 2. Upgrade to kernel linux-oem-6.17.0-1012-oem and linux-firmware version 0ubuntu2.26. 3. Reboot 4. Run lsusb | grep -i bluetooth or rfkill list. Expected Result: Bluetooth device is listed and rfkill shows a Bluetooth service. Actual Result: No Bluetooth device is detected on the USB bus. [Affected Machines] https://certification.canonical.com/hardware/202412-36068/ https://certification.canonical.com/hardware/202412-36070/ https://certification.canonical.com/hardware/202504-36588/ [Failure Rate] 3/3 ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.17.0-1014-oem 6.17.0-1014.14 ProcVersionSignature: Ubuntu 6.17.0-1014.14-oem 6.17.13 Uname: Linux 6.17.0-1014-oem x86_64 ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ubuntu 1618 F.... wireplumber /dev/snd/controlC0: ubuntu 1618 F.... wireplumber /dev/snd/seq: ubuntu 1614 F.... pipewire CasperMD5CheckMismatches: ./casper/initrd ./casper/vmlinuz ./casper/minimal.standard.live.hotfix.manifest ./casper/minimal.standard.live.hotfix.size ./casper/minimal.standard.live.size ./casper/minimal.manifest ./casper/minimal.standard.manifest ./casper/minimal.standard.size ./casper/minimal.hotfix.size ./casper/minimal.standard.live.hotfix.squashfs ./casper/minimal.standard.hotfix.squashfs ./casper/minimal.standard.hotfix.size ./casper/minimal.hotfix.squashfs ./casper/minimal.standard.live.manifest ./casper/minimal.size ./boot/grub/grub.cfg CasperMD5CheckResult: fail Date: Mon Mar 23 02:24:00 2026 DistributionChannelDescriptor: # This is the distribution channel descriptor for Ubuntu 24.04 for Dell # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-noble-oem-24.04b-proposed-20250604-520 InstallationDate: Installed on 2026-03-18 (5 days ago) InstallationMedia: Ubuntu OEM 24.04.2 LTS "Noble Numbat" - Release amd64 (20250603) IwConfig: lo no wireless extensions. enp4s0 no wireless extensions. wlp3s0 no wireless extensions. MachineType: Alienware Alienware 16 Aurora AC16250 ProcFB: 0 i915drmfb 1 nvidia-drmdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-1014-oem root=UUID=f006ce77-5d42-4984-bedd-47f9bb0fb8d5 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.17.0-1014-oem N/A linux-backports-modules-6.17.0-1014-oem N/A linux-firmware 20240318.git3b128b60-0ubuntu2.26 RfKill: 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: no SourcePackage: linux-oem-6.17 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/11/2025 dmi.bios.release: 1.2 dmi.bios.vendor: Alienware dmi.bios.version: 1.2.0 dmi.board.name: 0V901B dmi.board.vendor: Alienware dmi.board.version: D02 dmi.chassis.type: 10 dmi.chassis.vendor: Alienware dmi.ec.firmware.release: 1.2 dmi.modalias: dmi:bvnAlienware:bvr1.2.0:bd04/11/2025:br1.2:efr1.2:svnAlienware:pnAlienware16AuroraAC16250:pvr:rvnAlienware:rn0V901B:rvrD02:cvnAlienware:ct10:cvr:sku0D35: dmi.product.family: Alienware dmi.product.name: Alienware 16 Aurora AC16250 dmi.product.sku: 0D35 dmi.sys.vendor: Alienware ** Affects: linux-oem-6.17 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug cert-sru noble package-from-proposed regression-proposed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2145164 Title: Bluetooth device (MT7925) not detected on USB bus with linux-oem-6.17 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.17/+bug/2145164/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
