PowerDevil is unable to power off the screen

[Marcelo Magno T. Sales]

Em Sex 02 Jan 2009, Ahmed Kamal escreveu:
> Hi,
> I'm on 4.2 beta2, and my problem is that my laptop's LCD never powers
> off ! It goes black, but the backlight is always on. I have removed
> kpowersave, which I used to use previously, and now using powerdevil.
> It simply doesn't turn off. The VGA card is nVidia, and `xset q`
> returns
> DPMS (Energy Star):
>   Standby: 0    Suspend: 0    Off: 0
>   DPMS is Enabled
>   Monitor is On
>
> Using, `xset dpms force off` does power off correctly. In fact, using
> qdbus org.kde.powerdevilsystem /modules/powerdevil
> org.kde.PowerDevil.turnOffScreen
> also does power off correctly. So powerdevil is able to power off the
> screen if it wants to .. then why is it not doing that ?! How do I
> even start debugging this .. It is very annoying, as it's burning off
> hours from the LCD's lifetime. Any tips are welcome

Maybe it has something to do with this bug:
https://bugs.kde.org/show_bug.cgi?id=165265

[]'s
Marcelo