[Bug 2160114] Re: Intel IPU7 camera fails to initialize on Lunar Lake ThinkPad (SONY471A, -EEXIST, no /dev/video0)

Hi, for all the linux-main-modules-* packages, you have only linux-main-modules-zfs-7.0.0-27-generic. Please also install following packages and try again: * linux-main-modules-ipu6-7.0.0-27-generic * linux-main-modules-ipu7-7.0.0-27-generic * linux-main-modules-usbio-7.0.0-27-generic * linux-main-modules-vision-7.0.0-27-generic * linux-main-modules-v4l2loopback-7.0.0-27-generic And, you should also need HAL stack from https://launchpad.net/~oem-solutions-group/+archive/ubuntu/intel-ipu6 and https://launchpad.net/~oem-solutions-group/+archive/ubuntu/intel-ipu7 PPA: * gstreamer1.0-icamera * libcamhal-ipu7x * v4l2-relayd ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2160114 Title: Intel IPU7 camera fails to initialize on Lunar Lake ThinkPad (SONY471A, -EEXIST, no /dev/video0) Status in linux package in Ubuntu: Incomplete Bug description: The integrated webcam is not detected on Ubuntu 26.04 LTS. Hardware: - Lenovo ThinkPad (Machine Type: 21Q6001FMX) - Intel Lunar Lake - Intel IPU7 - BIOS N4CET44W (1.20) Kernel: 7.0.0-27-generic Symptoms: - No /dev/video* devices are created. - Firefox and Microsoft Teams cannot detect a camera. Relevant kernel messages: Found supported sensor SONY471A:00 kobject_add_internal failed for SONY471A-0 with -EEXIST intel-ipu7: error -EEXIST: IPU bridge init failed intel-ipu7: probe with driver intel-ipu7 failed with error -17 refcount_t: addition on 0; use-after-free The IPU7 firmware loads successfully and the sensor is detected, but driver initialization fails before any video device is created. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-27-generic 7.0.0-27.27 ProcVersionSignature: Ubuntu 7.0.0-27.27-generic 7.0.6 Uname: Linux 7.0.0-27-generic x86_64 ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: markuserlach 5209 F.... pipewire markuserlach 5231 F.... wireplumber /dev/snd/seq: markuserlach 5209 F.... pipewire CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed Jul 8 09:48:28 2026 InstallationDate: Installed on 2026-07-07 (1 days ago) InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) MachineType: LENOVO 21Q6001FMX ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 xedrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-27-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux StagingDrivers: intel_ipu7 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/27/2026 dmi.bios.release: 1.20 dmi.bios.vendor: LENOVO dmi.bios.version: N4CET44W (1.20 ) dmi.board.asset.tag: Not Available dmi.board.name: 21Q6001FMX dmi.board.vendor: LENOVO dmi.board.version: SDK0T76576 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.15 dmi.modalias: dmi:bvnLENOVO:bvrN4CET44W(1.20):bd04/27/2026:br1.20:efr1.15:svnLENOVO:pn21Q6001FMX:pvrThinkPadX9-15Gen1:rvnLENOVO:rn21Q6001FMX:rvrSDK0T76576WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21Q6_BU_Think_FM_ThinkPadX9-15Gen1:pfaThinkPadX9-15Gen1: dmi.product.family: ThinkPad X9-15 Gen 1 dmi.product.name: 21Q6001FMX dmi.product.sku: LENOVO_MT_21Q6_BU_Think_FM_ThinkPad X9-15 Gen 1 dmi.product.version: ThinkPad X9-15 Gen 1 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2160114/+subscriptions