** Description changed:
- In Dell or ThinkPad notebooks with keyboard backlight, the keybindings
- to control the keyboard backlight don't emit any event to the userland,
+ In Dell or ThinkPad (for these you need a kernel which includes fix for
+ lp:1574498) notebooks with keyboard backlight, the keybindings to
+ control the keyboard backlight don't emit any event to the userland,
about the state change, nor they request userland to change it (as it
happens in other models which emits KEY_KBDILLUM{UP,DOWN,TOGGLE}
events), this causes unity/gnome-settings daemon not to restore the
proper backlight after idle.
Steps to reproduce:
- 0) ensure your keyboard backlight is on, and
- gdbus call --system --dest org.freedesktop.UPower \
- --object-path /org/freedesktop/UPower/KbdBacklight \
- --method org.freedesktop.UPower.KbdBacklight.GetBrightness
- returns a value != from 0. If not, just call the SetBrightness
- method with a positive value, to turn on the backlight.
-
- Now turn off the keyboard backlight (or set it to another level)
- using the laptop keys, and run:
- gsettings set org.gnome.desktop.session idle-delay 1
- to make things easier to test.
+ 0) ensure your keyboard backlight is on, and
+ gdbus call --system --dest org.freedesktop.UPower \
+ --object-path /org/freedesktop/UPower/KbdBacklight \
+ --method org.freedesktop.UPower.KbdBacklight.GetBrightness
+ returns a value != from 0. If not, just call the SetBrightness
+ method with a positive value, to turn on the backlight.
- 2) Wait one second and the screensaver should start. Wait the screen to
- be turned off. If you just changed the brightness level at the step above,
- once the screen is turned off, also the keyboard backlight should be
turned off too.
+ Now turn off the keyboard backlight (or set it to another level)
+ using the laptop keys, and run:
+ gsettings set org.gnome.desktop.session idle-delay 1
+ to make things easier to test.
- 3) Now press a key or move the mouse.
+ 2) Wait one second and the screensaver should start. Wait the screen to
+ be turned off. If you just changed the brightness level at the step above,
+ once the screen is turned off, also the keyboard backlight should be
turned off too.
+
+ 3) Now press a key or move the mouse.
Expected behavior:
- 4) The keyboard backlight should be set back to the previous level (so it
should stay off
- or go back to the level you set before the idle timeout happened).
+ 4) The keyboard backlight should be set back to the previous level (so it
should stay off
+ or go back to the level you set before the idle timeout happened).
Actual behavior:
- 5) The backlight is set to the level it had at point 0).
+ 5) The backlight is set to the level it had at point 0).
--
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1583861
Title:
Keyboard backlight isn't properly restored after idle on systems with
hardwired configuration
To manage notifications about this bug go to:
https://bugs.launchpad.net/dell-sputnik/+bug/1583861/+subscriptions
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