[Bug 2121948] [NEW] [SRU] Support suspend/resume for IMX471 camera sensor
Launchpad Bug Tracker
2121948 at bugs.launchpad.net
Wed Sep 10 17:15:55 UTC 2025
You have been subscribed to a public bug by You-Sheng Yang (vicamo):
[SRU Justification]
[ Impact ]
Sony imx471 is not explicitly powered on before trying to identify the module, leaving following error messages in kernel dmesg buffer:
```
kernel: imx471 i2c-SONY471A:00: failed to find sensor: -5
kernel: imx471 i2c-SONY471A:00: probe with driver imx471 failed with error -5
```
Proposed fix in
https://github.com/intel/ipu6-drivers/commit/faef397c5bfedcd3182cce27eab1539f5eaca9eb.
[ Test Plan ]
1. Install the dkms from -proposed pocket. The corresponding binary kernel module should be built automatically; if not, run:
```
$ sudo dkms install --force ipu6-drivers/0~git202506270118.9bff7368 -k $(uname -r)
```
2. Reboot to the same kernel to reload the drivers.
3. Make sure the device is probed and up running:
```
$ media-ctl -p
Media controller API version 6.14.8
Media device information
------------------------
driver intel-ipu7
model ipu7
serial
bus info PCI:intel-ipu7
hw revision 0x17aa233b
driver version 6.14.8
...
```
4. Use https://webcamtests.com to verify the camera is really capable of
streaming.
[ Where problems could occur ]
This fills the probe procedure as other similar camera sensors do. No
known problem so far.
[ Other Info ]
This is a follow-up for bug 2107320 that supports IMX471 in linux-
oem-6.11 and on. Nominate for Plucky, Questing for ipu6-drivers, which
will be compiled within linux-oem-6.11 and on.
========== original bug report ==========
This is a follow-up for bug 2107320, support Sony IMX471 camera sensor
for Intel IPU7 platforms.
Proposed fix in https://github.com/intel/ipu6-drivers/commit/faef397c5bfedcd3182cce27eab1539f5eaca9eb.
---
ProblemType: Bug
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1575 F.... pipewire
ubuntu 1579 F.... wireplumber
/dev/snd/seq: ubuntu 1575 F.... pipewire
CRDA: N/A
CasperMD5CheckMismatches: ./casper/initrd ./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
DistributionChannelDescriptor:
# This is the distribution channel descriptor for Ubuntu 24.04 for Lenovo
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-sutton-noble-oem-24.04c-20250822-50
DistroRelease: Ubuntu 24.04
InstallationDate: Installed on 2025-08-29 (12 days ago)
InstallationMedia: Ubuntu OEM 24.04.3 LTS "Noble Numbat" - Release amd64 (20250821)
IwConfig:
lo no wireless extensions.
wlp0s20f3 no wireless extensions.
enx607d099eaa26 no wireless extensions.
MachineType: LENOVO 21Q7ZCM3US
Package: ipu6-drivers
ProcFB: 0 xedrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-9011-oem root=UUID=0f9adf29-e579-4dc5-82a4-a98b51147867 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 6.14.0-9011.11+exp.19-oem 6.14.8
RelatedPackageVersions:
linux-restricted-modules-6.14.0-9011-oem N/A
linux-backports-modules-6.14.0-9011-oem N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.17
Tags: noble
Uname: Linux 6.14.0-9011-oem x86_64
UnreportableReason: This does not seem to be an official Ubuntu package. Please retry after updating the indexes of available packages, if that does not work then remove related third party packages and try again.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 09/03/2025
dmi.bios.release: 1.15
dmi.bios.vendor: LENOVO
dmi.bios.version: N4CET39W.T02.HotKey (1.15 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21Q7ZCM3US
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: 1.11
dmi.modalias: dmi:bvnLENOVO:bvrN4CET39W.T02.HotKey(1.15):bd09/03/2025:br1.15:efr1.11:svnLENOVO:pn21Q7ZCM3US:pvrThinkPadX9-15Gen1:rvnLENOVO:rn21Q7ZCM3US:rvrSDK0T76576WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21Q7_BU_Think_FM_ThinkPadX9-15Gen1:
dmi.product.family: ThinkPad X9-15 Gen 1
dmi.product.name: 21Q7ZCM3US
dmi.product.sku: LENOVO_MT_21Q7_BU_Think_FM_ThinkPad X9-15 Gen 1
dmi.product.version: ThinkPad X9-15 Gen 1
dmi.sys.vendor: LENOVO
** Affects: ipu6-drivers (Ubuntu)
Importance: High
Assignee: You-Sheng Yang (vicamo)
Status: In Progress
** Affects: linux-oem-6.14 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-6.17 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: ipu6-drivers (Ubuntu Noble)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-6.14 (Ubuntu Noble)
Importance: High
Assignee: You-Sheng Yang (vicamo)
Status: In Progress
** Affects: linux-oem-6.17 (Ubuntu Noble)
Importance: High
Assignee: You-Sheng Yang (vicamo)
Status: In Progress
** Affects: ipu6-drivers (Ubuntu Plucky)
Importance: High
Assignee: You-Sheng Yang (vicamo)
Status: In Progress
** Affects: linux-oem-6.14 (Ubuntu Plucky)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-6.17 (Ubuntu Plucky)
Importance: Undecided
Status: Invalid
** Affects: ipu6-drivers (Ubuntu Questing)
Importance: High
Assignee: You-Sheng Yang (vicamo)
Status: In Progress
** Affects: linux-oem-6.14 (Ubuntu Questing)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-6.17 (Ubuntu Questing)
Importance: Undecided
Status: Invalid
** Tags: apport-collected jira-sutton-1780 noble
--
[SRU] Support suspend/resume for IMX471 camera sensor
https://bugs.launchpad.net/bugs/2121948
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