This bug was fixed in the package iio-sensor-proxy - 3.3-0ubuntu6
---------------
iio-sensor-proxy (3.3-0ubuntu6) jammy; urgency=medium
* d/p/0003-prefer-buffer-driver-to-polling-driver.patch:
Prefer buffer driver to polling driver for ALS
(lp: #1963628)
* d/p/0002-force-iio-buffer-als-on-some-dell-models.patch:
Removed in favor of the patch above
-- Yao Wei (魏銘廷) <yao....@canonical.com> Fri, 18 Mar 2022 12:02:27
+0800
** Changed in: iio-sensor-proxy (Ubuntu)
Status: Fix Committed => Fix Released
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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
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
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