touch-packages team mailing list archive

[Evan Wang <1314678@xxxxxxxxxxxxxxxxxx>]

Exists the same issue with build  r179 on Arale phone.
When "Adjust automatically" is on, manually adjust brightness does not work.

$ system-image-cli -i
current build number: 179
device name: m75
channel: ubuntu-touch/vivid-proposed
last update: 2015-04-21 18:09:15
version version: 179

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https://bugs.launchpad.net/bugs/1314678

Title:
  "Display brightness" adjustable but does nothing when "Adjust
  automatically" is on

Status in powerd package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 14.10 r2

  1. Navigate to System Settings > "Brightness".
  2. Check "Adjust automatically".
  3. Drag the "Display brightness" slider.

  What happens:
  2. The emitted brightness changes to the automatic value, but the slider does not move.
  3. Nothing.

  What should happen:
  2. The slider jumps to the automatic brightness value.
  3. The emitted brightness changes, matching the slider.

  <https://wiki.ubuntu.com/BrightnessAndDisplays#Phone>: "Therefore, the
  “Display brightness:” slider should be sensitive regardless of whether
  'Adjust automatically' is checked or unchecked. If it is checked and
  you adjust the brightness manually, the function that determines the
  automatic brightness should be adjusted such that, in future, the
  current ambient light value would result in your just-chosen
  brightness being chosen automatically."

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