Backlight can't be set, although possible using "xbacklight"
Bug #311436 reported by
FriedChicken
This bug report is a duplicate of:
Bug #438763: Can not set backlight brightness on my Samsung NC10 in karmic.
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This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
KDE Base |
New
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Undecided
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Unassigned | ||
linux (Ubuntu) |
Incomplete
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Low
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Unassigned | ||
Bug Description
On Jaunty I'm not able to set the backlight on my Samsung NC10 netbook although this is posssible using the command line tool "xbacklight".
I don't know how KDE 4/Solid tries to set the backlight, but I think xbacklight sets the brightness over XRandR.
I think setting the backlight is an essential function on a netbook as it has a big impact on the battery usage and the aimed user groups of netbooks are surely not only people who know the xbacklight-trick.
Changed in kdebase: | |
status: | Unknown → New |
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KDE4 probably tries to detect acpi method of brightess control, kpowersave on KDE3.5 do the same I think.
On Samsung NC10 there is no acpi method for brightness control, but Gnome uses xrandr to communicate with hal to control display. Kpowersave says there is no brightness control, and it's the same with powerdevil on KDE4. Adding xrandr support to powerdevil would do the trick.