failed to enable IPU6 camera sensor on kernel >= 6.8: ivsc_ace intel_vsc-5db76cf6-0a68-4ed6-9b78-0361635e2447: switch camera to host failed: -110

[You-Sheng Yang]

[SRU Justification]

BugLink: https://bugs.launchpad.net/bugs/2067364

[Impact]

With IVSC switched to in-tree driver since 6.8 kernels in bug 2061747, it's still suffering from various problems that blocks camera driver stack being loaded correctly.

The ivsc-ace driver may fail to communicate with the underlying firmware with error messages:
  ```
  ivsc_ace intel_vsc-5db76cf6-0a68-4ed6-9b78-0361635e2447: switch camera to host failed: -110
  ```
This happens after warm reboots. In addition, ivs may block suspend resume, too.

[Fix]

These symptoms are to be addressed by upstream reviewing patchsets:
* https://<email address hidden>/
* https://<email address hidden>/
* commit 9b5e045029d8 ("mei: vsc: Don't stop/restart mei device during system suspend/resume") from v6.10-rc4

[Test Case]

The proposed kernel should have been built along with the updated ipu6-drivers dkms. To verify ipu6-drivers alone, one will need experimental kernels from https://launchpad.net/~canonical-hwe-team/+archive/ubuntu/intermediate-kernel.

Here are steps for verifying kernels from -proposed pocket:

1. test camera after rebooting into a proposed kernel,
2. run suspend/resume stress test plan.
3. verify camera still working

[Where problems could occur]

These fixes are quite limited to ipu6/ivsc platforms, and affected no power-consumption or other notisible problem.

[Other Info]

While some of the fixes are still under upstream review, meaning they're not yet available in any kernel release, linux-unstable/oracular/noble and oem-6.8/6.1x will be nominated for fix.

========== original bug report ==========

With IVSC switched to in-tree driver since 6.8 kernels in bug 2061747, it's still suffering from various problems that blocks camera driver stack being loaded correctly.

The ivsc-ace driver may fail to communicate with the underlying firmware with error messages:

  ivsc_ace intel_vsc-5db76cf6-0a68-4ed6-9b78-0361635e2447: switch camera to host failed: -110

This happens after warm reboots. In addition, ivs may block suspend resume, too.

These symptoms are to be addressed by upstream reviewing patchsets:
* https://<email address hidden>/
* https://<email address hidden>/
* commit 9b5e045029d8 ("mei: vsc: Don't stop/restart mei device during system suspend/resume") from v6.10-rc4

---
ProblemType: Bug
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/seq: ubuntu 1798 F.... pipewire
 /dev/snd/controlC0: ubuntu 1798 F.... pipewire
                      ubuntu 1801 F.... wireplumber
CasperMD5CheckMismatches: ./.disk/casper-uuid-generic ./casper/initrd ./casper/minimal.standard.live.hotfix.squashfs ./casper/minimal.standard.hotfix.squashfs ./casper/minimal.hotfix.squashfs ./boot/grub/grub.cfg
CasperMD5CheckResult: fail
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-hwe-20240530-104
DistroRelease: Ubuntu 24.04
InstallationDate: Installed on 2024-05-31 (25 days ago)
InstallationMedia: Ubuntu OEM 24.04 LTS "Noble Numbat" - Release amd64 (20240530)
IwConfig:
 lo no wireless extensions.

 wlp114s0f0 no wireless extensions.
MachineType: Dell Inc. XPS 13 9340
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-1006-oem root=UUID=d5b7dbbf-8cd9-4ae2-8a58-14c2bf796724 ro debug ignore_log_level hid_sensor_als.dyndbg=+p industrialio.dyndbg=+p hid_sensor_iio_common.dyndbg=+p hid_sensor_trigger.dyndbg=+p
ProcVersionSignature: Ubuntu 6.8.0-1006.6-oem 6.8.4
RelatedPackageVersions:
 linux-restricted-modules-6.8.0-1006-oem N/A
 linux-backports-modules-6.8.0-1006-oem N/A
 linux-firmware 20240318.git3b128b60-0ubuntu2.1
Tags: noble
Uname: Linux 6.8.0-1006-oem x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 03/21/2024
dmi.bios.release: 1.4
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.1
dmi.board.name: 02395C
dmi.board.vendor: Dell Inc.
dmi.board.version: X04
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 1.8
dmi.modalias: dmi:bvnDellInc.:bvr1.4.1:bd03/21/2024:br1.4:efr1.8:svnDellInc.:pnXPS139340:pvr:rvnDellInc.:rn02395C:rvrX04:cvnDellInc.:ct10:cvr:sku0C87:
dmi.product.family: XPS
dmi.product.name: XPS 13 9340
dmi.product.sku: 0C87
dmi.sys.vendor: Dell Inc.

[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

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[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

apport information

[You-Sheng Yang (vicamo)]

SRU:
* https://kernel.ubuntu.com/gitea/kernel/noble-linux-oem/pulls/15 (oem-6.8)
* https://kernel.ubuntu.com/gitea/kernel/noble-linux-oem/pulls/16 (oem-6.10)
* https://lists.ubuntu.com/archives/kernel-team/2024-June/151755.html (noble)
* https://lists.ubuntu.com/archives/kernel-team/2024-June/151764.html (unstable)

[You-Sheng Yang (vicamo)]

Debdiff from ipu6-drivers/noble and oracular.

While this bumps the upstream version to 0~git202406240945.aecec2aa,
source tarball along with prebuilt binaries are also available in
https://launchpad.net/~vicamo/+archive/ubuntu/sru .

[Launchpad Janitor (janitor)]

This bug was fixed in the package ipu6-drivers - 0~git202406240945.aecec2aa-0ubuntu1

---------------
ipu6-drivers (0~git202406240945.aecec2aa-0ubuntu1) oracular; urgency=medium

  [ You-Sheng Yang ]
  * upstream Release_20240624 release (LP: #2067364)
  * UBUNTU: SAUCE: [IPU6] skip hwcfg checking for platforms with none/broken
    graph port nodes (LP: #2070251)
  * UBUNTU: SAUCE: media: ipu6: Fix compilation with kernels >= 6.10
  * ov08x40: add back driver source (LP: #2060101)

 -- You-Sheng Yang <email address hidden> Mon, 24 Jun 2024 22:01:05 +0800

[Timo Aaltonen (tjaalton)]

Hello You-Sheng, or anyone else affected,

Accepted ipu6-drivers into noble-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/ipu6-drivers/0~git202406240945.aecec2aa-0ubuntu1~22.04.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-noble to verification-done-noble. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-noble. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Timo Aaltonen (tjaalton)]

Hello You-Sheng, or anyone else affected,

Accepted ipu6-drivers into noble-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/ipu6-drivers/0~git202406240945.aecec2aa-0ubuntu1~24.04.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-noble to verification-done-noble. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-noble. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.