[SRU Justification]
[Impact]
Unexpected noises caused by incorrect analog gain and digital gain
setting are found on Intel IPU6 camera platforms.
[Fix]
Fixes were released to both kernel and libcamhal library in following
GitHub repositories:
* https://github.com/intel/ipu6-drivers/commit/f06a7aba2573b9ff53e7b186325c4e890066ee5d
* https://github.com/intel/ipu6-camera-hal/commit/768f8138a93e3e677c0e167e97205aac628c7580
* https://github.com/intel/ipu6-camera-hal/commit/42727783f4a2a808d5d43484a5a7795d6c6d899f
[Test Case]
One may use some ordinary camera clients, e.g. cheeze, to examine the
output via V4L2 loopback relay, or use following command to access
hardware camera directly:
$ sudo gst-launch-1.0 icamerasrc ! videoconvert ! xvimagesink
`sudo` is required due to a WIP bug.
[Where problems could occur]
This kernel driver change updates only register settings on the camera
sensor currently only used on IPU6 platforms, so the effect to other
components/platforms should be limited. However, while the
kernel/libcamhal fixes must cooperate with each other, we do meet one
regression introduced by this change, and soon got fixed as the third
commit in aforementioned list.
[Other Info]
So far Intel has no plan to commit this driver to upstream yet, so it's
only nominated for oem-5.10. It will only be nominated to generic
kernels when the plan/requirements have changed.
========== original bug description ==========
Intel has a new release on camera IQ improvement at https://github.com/intel/ipu6-drivers/commit/f06a7aba2573b9ff53e7b186325c4e890066ee5d. Both changes to kernel and the user land libraries are included.
Changes includes:
1. Fix noise caused by incorrect analog gain and digital gain setting. See
attachment[1].
2. Change the sensor output size to match the tunings
[1]: https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.10/+bug/1926275/+attachment/5492756/+files/Screenshot%20from%205.10.0-2021-oem.png
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: u 2341 F.... pulseaudio
CasperMD5CheckResult: skip
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-focal-amd64-20200502-85+fossa-mewtwo+X82
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-04-22 (4 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
MachineType: Dell Inc. Latitude 9420
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-2021-oem root=UUID=1f8043b6-5b7f-4d0c-b066-e29b702b7707 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.10.0-2021.22+lp1921345.1.intel.ipu6-oem 5.10.25
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.10.0-2021-oem N/A
linux-backports-modules-5.10.0-2021-oem N/A
linux-firmware 1.187.11+lp1921345.1.intel.ipu6
Tags: focal
Uname: Linux 5.10.0-2021-oem x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 01/25/2021
dmi.bios.release: 89.5
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 89.5.23
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr89.5.23:bd01/25/2021:br89.5:svnDellInc.:pnLatitude9420:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct10:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 9420
dmi.product.sku: 0A32
dmi.sys.vendor: Dell Inc.
apport information