[Bug 1963628] Re: Force IIO_SENSOR_PROXY_TYPE to iio-buffer-als for some Dell models

[Brian Murray]

I've gone ahead and sponsored this, thanks for making the changes.

 $ dput iio-sensor-proxy_2.8-1ubuntu2_source.changes
Trying to upload package to ubuntu
Checking signature on .changes
gpg: /tmp/pkgs/focal/iio-sensor-proxy_2.8-1ubuntu2_source.changes: Valid signature from 1E918B66765B3E31
Checking signature on .dsc
gpg: /tmp/pkgs/focal/iio-sensor-proxy_2.8-1ubuntu2.dsc: Valid signature from 1E918B66765B3E31
Uploading to ubuntu (via ftp to upload.ubuntu.com):
  Uploading iio-sensor-proxy_2.8-1ubuntu2.dsc: done.
  Uploading iio-sensor-proxy_2.8-1ubuntu2.debian.tar.xz: done.
  Uploading iio-sensor-proxy_2.8-1ubuntu2_source.buildinfo: done.
  Uploading iio-sensor-proxy_2.8-1ubuntu2_source.changes: done.
Successfully uploaded packages.


** Changed in: iio-sensor-proxy (Ubuntu Focal)
       Status: New => In Progress

** Changed in: iio-sensor-proxy (Ubuntu Focal)
   Importance: Undecided => High

-- 
You received this bug notification because you are a member of Ubuntu
Sponsors Team, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/1963628

Title:
  Force IIO_SENSOR_PROXY_TYPE to iio-buffer-als for some Dell models

Status in OEM Priority Project:
  New
Status in iio-sensor-proxy package in Ubuntu:
  Fix Released
Status in iio-sensor-proxy source package in Focal:
  In Progress

Bug description:
  We are encountering issues, that when enabling some Dell laptops, the readings
  from iio-poll-als are unstable, or could freeze on certain value.  On these
  systems they have ENV{IIO_SENSOR_PROXY_TYPE}="iio-poll-als iio-buffer-als", and
  removing iio-poll-als makes reading stable.

  This adds workaround to the affected Dell laptop models which may equip with
  ALS.

  [Impact]

   * Only models matching the same device BIOS IDs are affected.

  [Test Plan]

   * Pick devices which BIOS IDs are listed in the patch, and test
  whether it's ambient light sensors are working properly without
  unexpected brightness flickers.

  [Where problems could occur]

   * Machines matching the same BIOS ID, either having ALS built-in or
  not, but attached ambient light sensors externally (for example,
  ColorHug ALS) might experience failures.

  [Other Info]
   
   * Upstream merge request: https://gitlab.freedesktop.org/hadess/iio-sensor-proxy/-/merge_requests/352

To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1963628/+subscriptions