Yes, the issue is still present in 8.10, though behavior is a bit
different.

In current up to date Kubuntu 8.10 with KDE 4.1, I can start kpowersave,
and leave it running, but when I reboot it is automatically replaced by
Guidance power management.

Observations:

* Go to system settings > Display, and set power management on and set all 
three options to 1 min. Wait for 1 min.
-> Screen shuts down, then after a few seconds blinks back on to normal 
visibility, and then goes black but the backlight remains on. Also the mouse 
cursor remains visible, although the screen is otherwise completely black. Upon 
moving the mouse, system restores screen. Backlight is on a level which is 
neither the minimum or maximum brightness, but something in between. This 
brightness level is independent of the brightness slider setting in Guidance.

* Quit Guidance. Go to system settings > Display, and set power management on, 
and set standby after 1 min, suspend after 2 mins and power off after 3 mins. 
Wait for 3 mins.
-> after 1 min same as above happens (screen goes fully off, then after a few 
seconds blinks on, and then goes black but with backlight on and mouse cursor 
visible).
-> after 2 mins nothing happens.
-> after 3 mins screen goes fully off, and does not come back on.

* Now after rebooting Guidance always starts up, even if a quit it just
prior to rebooting. It does not ask whether it should be automatically
started, like KPowerSave did.

* The "Hold"-button still works the same way it did in 8.04 / KDE 3 as
well as the preinstalled Windows Vista, i.e. turns off both display and
touch screen after a few seconds of delay.

-- 
kpowersave resumes to wrong screen brighgness after blanking
https://bugs.launchpad.net/bugs/219818
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