[Bug 2106807] Re: Privacy LED may not be turned on on OEM Renegade platform with Intel IPU7 camera

Mon Apr 28 15:33:40 UTC 2025

Had a quick look at this during a patch-pilot shift -- the patch is
simple enough, and the test plan looks reasonable, but it only covers
the system *after* the proposed version is installed. Ideally, the test
plan should re-produce the bug (with the released version of vision-
drivers), have the user install the proposed version and re-test to show
that this change (and only this change) fixes the issue (as opposed to
anything random in the background like other upgrades).

In other words, the test plan is *almost* complete but could do with one
additional step at the top, for example, to visit
https://webcamtests.com and show that the privacy LED does not light.

The section on where problems could occur needs more detail: it mentions
that an error is reported in dmesg. Does that apply to the affect
platforms only, or to other platforms? The mere fact an error is
reported in dmesg may cause other issues in itself. Furthermore, just
because this is fixing an initialization value only, does not make it
any less likely that the fix may have knock-on effects. The SRU team are
rather likely to pick up on this section as not having enough detail
currently.

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https://bugs.launchpad.net/bugs/2106807

Title:
  Privacy LED may not be turned on on OEM Renegade platform with Intel
  IPU7 camera

Status in linux-oem-6.11 package in Ubuntu:
  Invalid
Status in vision-drivers package in Ubuntu:
  In Progress
Status in linux-oem-6.11 source package in Noble:
  New
Status in vision-drivers source package in Noble:
  Invalid
Status in linux-oem-6.11 source package in Oracular:
  Invalid
Status in vision-drivers source package in Oracular:
  Opinion
Status in linux-oem-6.11 source package in Plucky:
  Invalid
Status in vision-drivers source package in Plucky:
  In Progress

Bug description:
  [SRU Justification]

  [ Impact ]

  With CVS firmware >= version 132.39.66.9(0x84.0x27.0x42.0x9),
  SET_HOST_IDENTIFIER was added. One of the field was not initialized
  correctly, and it leads to the inability to turn off the privacy LED.

  Proposed fix merged as upstream commit
  https://github.com/intel/vision-
  drivers/commit/fc4981411e140674b016a3d7dc062434848f5311.

  [ Test Plan ]

  While different platforms may have different versions of CVS firmware, it's only known reproducible on a few still in-development OEM platforms. To verify:
  0. verify CVS firmware version:
     ```
     $ cd /sys/bus/i2c/devices/i2c-INTC*
     $ echo version | sudo tee cmd
     $ cat coredump
     ...
     CVS Firmware Ver: 132.39.66.9 (0x84.0x27.0x42.0x9)
     ...
     ```

  1. install linux-oem-6.11 >= 6.11.0-1019,

  2. install intel-vision-dkms from -proposed pocket,

  3. reboot to the same linux-oem-6.11 kernel, and browse to
  https://webcamtests.com to activate camera use. The privacy LED should
  be turned on while using, and off while camera stopped or browser
  terminated.

  [ Where problems could occur ]

  No. That's to fix a initialized value, and though SET_HOST_IDENTIFIER
  is always issued, it doesn't affect existing platforms but leaving an
  command error in dmesg.

  [ Other Info ]

  The target kernel is linux-oem-6.11, and we're currently compiling
  visions-drivers/plucky into it. Nominate for Plucky and Questing.

  For Oracular, still under discussion.

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

  [Expects]

  1. Launch camera apps like https://webcamtests.com in Firefox/Chrome
  2. The privacy LED should be turned on

  [Actual]

  Privacy LED off all the time.

  ---
  ProblemType: Bug
  ApportVersion: 2.28.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1775 F.... pipewire
                        ubuntu     1781 F.... wireplumber
   /dev/snd/seq:        ubuntu     1775 F.... pipewire
  CasperMD5CheckMismatches: ./casper/initrd ./casper/vmlinuz ./casper/minimal.standard.live.hotfix.manifest ./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 Dell
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-noble-oem-24.04b-next-20250410-214
  DistroRelease: Ubuntu 24.04
  InstallationDate: Installed on 2025-04-10 (3 days ago)
  InstallationMedia: Ubuntu OEM 24.04.1 LTS "Noble Numbat" - Release amd64 (20250407)
  IwConfig:
   lo        no wireless extensions.

   wlp0s20f3  no wireless extensions.
  MachineType: Dell Inc. Dell Pro Max 14 Premium MA14250
  Package: vision-drivers
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-1019-oem root=UUID=3ab86186-55fb-44bc-a01c-67f10fb1e358 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 6.11.0-1019.19-oem 6.11.11
  RelatedPackageVersions:
   linux-restricted-modules-6.11.0-1019-oem N/A
   linux-backports-modules-6.11.0-1019-oem  N/A
   linux-firmware                           20240318.git3b128b60-0ubuntu2.11+staging.7
  Tags: noble
  Uname: Linux 6.11.0-1019-oem x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: N/A
  _MarkForUpload: True
  dmi.bios.date: 04/02/2025
  dmi.bios.release: 0.3
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 0.3.37
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.ec.firmware.release: 0.0
  dmi.modalias: dmi:bvnDellInc.:bvr0.3.37:bd04/02/2025:br0.3:efr0.0:svnDellInc.:pnDellProMax14PremiumMA14250:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct10:cvr:sku0D32:
  dmi.product.family: Dell Pro Max Laptops
  dmi.product.name: Dell Pro Max 14 Premium MA14250
  dmi.product.sku: 0D32
  dmi.sys.vendor: Dell Inc.

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