** Description changed: On a Huawei MateBook E (11th Gen Intel Core i7‑1160G7), the built‑in MIPI camera does not work. The kernel reports the following error during boot: [ 2.755024] int3472-discrete INT3472:01: power-enable \_SB.GPI0 pin number mismatch _DSM 240 resource 144 The camera sensors are detected on the I2C bus (HYV0846, DIOO5644, S5K3L6), but the int3472 power management driver cannot properly control the camera’s power supply because the GPIO pin numbers reported by ACPI do not match the driver’s expectations. - **Expected behaviour** + **Expected behaviour** The camera should be powered on and recognised by the IPU6 driver, allowing video capture. - **Actual behaviour** + **Actual behaviour** The camera remains powered off; /dev/video1 and related nodes cannot stream any data. The int3472 error appears on every boot. - **Steps to reproduce** + **Steps to reproduce** 1. Boot the system on a Huawei MateBook E (i7‑1160G7). 2. Run `dmesg | grep int3472`. 3. Observe the pin mismatch error. - **System information** - - Model: Huawei MateBook E - - CPU: 11th Gen Intel(R) Core(TM) i7-1160G7 - - Kernel: 6.8.0‑106‑generic (also happens on 6.12.x) - - Ubuntu release: 24.04 LTS (Noble) + **System information** + - Model: Huawei MateBook E + - CPU: 11th Gen Intel(R) Core(TM) i7-1160G7 + - Kernel: 6.8.0‑106‑generic (also happens on 6.12.x) + - Ubuntu release: 24.04 LTS (Noble) - Camera sensors on I2C: `i2c-HYV0846:00`, `i2c-DIOO5644:00`, `i2c-S5K3L6:00` - **Additional context** - - The issue persists after installing `libcamhal-ipu6`, `linux-firmware`, and `firmware-intel-graphics`. + **Additional context** + - The issue persists after installing `libcamhal-ipu6`, `linux-firmware`, and `firmware-intel-graphics`. - The error is likely caused by non‑standard ACPI tables on this laptop, which deviate from Intel’s reference design. A driver quirk (DMI match) may be needed to correct the GPIO mapping for this specific model. - **Attachments** - (Please attach the output of the following commands if possible) - - `dmesg > dmesg.log` - - `sudo lspci -vvnn > lspci.log` - - `ls /sys/bus/acpi/devices/ > acpi-devices.log` + **Attachments** + - `dmesg > dmesg.log` + - `sudo lspci -vvnn > lspci.log` + - `ls /sys/bus/acpi/devices/ > acpi-devices.log` - `ls /sys/bus/i2c/devices/ > i2c-devices.log` 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/controlC0: yc 1317 F.... pipewire - yc 1327 F.... wireplumber - /dev/snd/seq: yc 1317 F.... pipewire + USER PID ACCESS COMMAND + /dev/snd/controlC0: yc 1317 F.... pipewire + yc 1327 F.... wireplumber + /dev/snd/seq: yc 1317 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Mon Mar 23 12:06:04 2026 MachineType: HUAWEI DRC-WXX ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-106-generic root=UUID=cb56fa51-4aab-483c-965f-653fa3c2d656 ro "acpi_osi=Windows 2020" quiet splash intel_idle.max_cstate=2 nuclear_pageflip=1 i915.force_probe=9a40 i915.enable_psr=0 i915.enable_guc=3 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 + 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: 10/26/2023 dmi.bios.release: 1.35 dmi.bios.vendor: HUAWEI dmi.bios.version: 1.35 dmi.board.asset.tag: N/A dmi.board.name: DRC-WXX-PCB dmi.board.vendor: HUAWEI dmi.board.version: M1010 dmi.chassis.asset.tag: N/A dmi.chassis.type: 32 dmi.chassis.vendor: HUAWEI dmi.chassis.version: M1010 dmi.ec.firmware.release: 1.35 dmi.modalias: dmi:bvnHUAWEI:bvr1.35:bd10/26/2023:br1.35:efr1.35:svnHUAWEI:pnDRC-WXX:pvrM1010:rvnHUAWEI:rnDRC-WXX-PCB:rvrM1010:cvnHUAWEI:ct32:cvrM1010:skuC233: dmi.product.family: MateBook E dmi.product.name: DRC-WXX dmi.product.sku: C233 dmi.product.version: M1010 dmi.sys.vendor: HUAWEI
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2145168 Title: int3472-discrete GPIO pin mismatch prevents camera power‑on on Huawei MateBook E (Tiger Lake) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2145168/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
