[Bug 2155194] Re: intel-ipu7: "IPU bridge init failed" -EEXIST on ThinkPad X9-14 Gen 1 (SONY471A/IMX471) — camera not detected, 7.0.0-22-generic

I tested the latest OEM kernel update available on my system. Kernel tested: 7.0.0-1009-oem Relevant package versions: intel-ipu7-dkms: 0~git202602091007.a88b1909-0ubuntu1 linux-image-7.0.0-1009-oem: Installed: 7.0.0-1009.9 linux-modules-7.0.0-1009-oem: Installed: 7.0.0-1009.9 linux-main-modules-ipu7-7.0.0-1009-oem: Installed: 7.0.0-1009.9 linux-modules-ipu7-oem-26.04: Installed: 7.0.0-1009.9 The issue is still present: - no /dev/video* - cam --list shows no available cameras - dmesg still shows the duplicate SONY471A software node failure: intel-ipu7 0000:00:05.0: Found supported sensor SONY471A:00 sysfs: cannot create duplicate filename '/kernel/software_nodes/SONY471A-0' kobject: kobject_add_internal failed for SONY471A-0 with -EEXIST intel-ipu7 0000:00:05.0: error -EEXIST: IPU bridge init failed intel-ipu7 0000:00:05.0: probe with driver intel-ipu7 failed with error -17 I also see: imx471: loading out-of-tree module taints kernel imx471 i2c-SONY471A:00: failed to check hwcfg: -517 So the patch removing the duplicated SONY471A entry does not appear to be included in linux-oem-7.0 version 7.0.0-1009.9 yet. Could someone confirm whether the attached patch is planned for the next linux-oem-7.0 upload? -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2155194 Title: intel-ipu7: "IPU bridge init failed" -EEXIST on ThinkPad X9-14 Gen 1 (SONY471A/IMX471) — camera not detected, 7.0.0-22-generic Status in linux package in Ubuntu: Invalid Bug description: Hardware: Lenovo ThinkPad X9-14 Gen 1, Intel Core Ultra 7 258V (Lunar Lake), IPU7 [8086:645d] rev 04, MIPI sensor Sony IMX471 (ACPI HID SONY471A:00). OS: Ubuntu 26.04 (resolute), kernel 7.0.0-22-generic. Stack: native in-kernel intel_ipu7 (staging) + ipu_bridge, libcamera 0.7.0. Symptom: the IPU7 PCI probe aborts during bridge init. No /dev/media* or /dev/video* node is created; libcamera (cam -l) lists 0 cameras. The driver detects the sensor and then fails deterministically: intel-ipu7 0000:00:05.0: Found supported sensor SONY471A:00 ipu_bridge_connect_sensor+0x10a/0x2b0 [ipu_bridge] ipu_bridge_init+0x1c7/0x250 [ipu_bridge] ipu7_isys_init.constprop.0+0x85/0x1a2 [intel_ipu7] ipu7_pci_probe.cold+0x50a/0x8fa [intel_ipu7] intel-ipu7 0000:00:05.0: error -EEXIST: IPU bridge init failed intel-ipu7 0000:00:05.0: probe with driver intel-ipu7 failed with error -17 Reproducible on every boot and on module reload (modprobe -r/modprobe). Tried: purged intel-ipu7-dkms so only the native signed module (linux-main-modules-ipu7-7.0.0-22-generic, intel_ipu7 marked (C)) is used. The -EEXIST persists with the pure native stack, so this is not a DKMS conflict. Expected: probe should complete as in LP #2107320 for the same laptop, i.e. "Found supported sensor SONY471A:00" -> "Connected 1 cameras" -> CSE BOOT_LOAD / AUTHENTICATE_RUN -> "bind imx471". This looks like a regression in the upstreamed IPU7/ipu-bridge staging path vs the OEM-kernel + ipu6-drivers path. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-22-generic 7.0.0-22.22 ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0 Uname: Linux 7.0.0-22-generic x86_64 ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rafahead 3861 F.... pipewire rafahead 3867 F.... wireplumber /dev/snd/controlC1: rafahead 3867 F.... wireplumber /dev/snd/seq: rafahead 3861 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Wed Jun 3 16:38:12 2026 InstallationDate: Installed on 2026-06-02 (1 days ago) InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) IwDevWlp0s20f3Link: Not connected. MachineType: LENOVO 21QA0035US 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=/boot/vmlinuz-7.0.0-22-generic root=UUID=e19479e7-58dd-4e84-ad0e-78c374e3b761 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: 02/11/2026 dmi.bios.release: 1.22 dmi.bios.vendor: LENOVO dmi.bios.version: N4DET39W (1.22 ) dmi.board.asset.tag: Not Available dmi.board.name: 21QA0035US 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: 1.19 dmi.modalias: dmi:bvnLENOVO:bvrN4DET39W(1.22):bd02/11/2026:br1.22:efr1.19:svnLENOVO:pn21QA0035US:pvrThinkPadX9-14Gen1:rvnLENOVO:rn21QA0035US:rvrSDK0T76576WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21QA_BU_Think_FM_ThinkPadX9-14Gen1:pfaThinkPadX9-14Gen1: dmi.product.family: ThinkPad X9-14 Gen 1 dmi.product.name: 21QA0035US dmi.product.sku: LENOVO_MT_21QA_BU_Think_FM_ThinkPad X9-14 Gen 1 dmi.product.version: ThinkPad X9-14 Gen 1 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2155194/+subscriptions