ubuntu-x-swat team mailing list archive

[Andreas Fackler <AndreasFackler@xxxxxx>]

I have the same problem on my acer Extensa 5230 notebook with intel
driver 2.9 and kernel 2.6.31.

Without KMS, "xrandr --props" shows properties "BACKLIGHT" and
"BACKLIGHT_CONTROL", while with KMS, there are the properties
"BACKLIGHT" and "Backlight", but no "BACKLIGHT_CONTROL". Setting
brightness via xrandr or /sys/class/backlight both work with KMS, only
the keys have no effect.

The acer Extensa 5230 has no "brightness" menu point in its BIOS.

-- 
brightness no more working on karmic (KMS)
https://bugs.launchpad.net/bugs/397617
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