Hello Yao, or anyone else affected,

Accepted iio-sensor-proxy into focal-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/iio-sensor-
proxy/2.8-1ubuntu2 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-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. 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.

** Tags added: verification-needed verification-needed-focal

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to iio-sensor-proxy in Ubuntu.
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:
  Fix Committed

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:
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