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[Bug 1381625] Re: Adjust brightness to lowest value caused screen whole black


So if you run into that situation, discovering that this is configurable
and changing the configuration seems equally hard (or harder). I can
understand the heuristics what was done upstream in gnome-settings-
daemon (see linked bug) to generally clam the brightness to >= 1 if
there are many steps. That will work without configuration, does not
need to be discovered, and keeps the path open for a better fix in the
future as this doesn't set/affect any user config or other permanent
state on disk. We could use that approach in unity-settings-daemon too?

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  Adjust brightness to lowest value caused screen whole black

Status in HWE Next:
Status in Unity Settings Daemon:
  Fix Released
Status in linux package in Ubuntu:
Status in unity-settings-daemon package in Ubuntu:
  Won't Fix

Bug description:

  When adjusting screen brightness to lowest value, it turns screen
  backlight off.

  [Test Case]

  1. Install Image
  2. Press System's brightness hotkey to adjust the brightness level to the lowest or
  3. Go to System "Settings" -> "Brightness & Lock" to adjust brightness level to the lowest
  4. Check if the screen display still has backlight

  Expected results: There is still screen backlight

  Actual results: Sceen backlight is turned off

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