some keys don't appear in xev

Posted by sazary on Super User See other posts from Super User or by sazary
Published on 2012-09-07T15:13:45Z Indexed on 2012/09/07 15:40 UTC
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xorg

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kubuntu

i can't change my screen brightness by pressing brightness keys on the keyboard, but they change through /sys/class/backlight/acpi_video0/brightness. so i started to diagnose the issue, ran xev and trying to see what happens when i press Fn+F5 or Fn+F6 which are brightness controls, and xev didn't show anything. i must note that it notifies my when i press volume controls, for example.
are F5 and F6 keys working? yes, but not when i press them with Fn key.
do i have any entry in xmodmap for brightness? yes:
keycode 232 = XF86MonBrightnessDown NoSymbol XF86MonBrightnessDown keycode 233 = XF86MonBrightnessUp NoSymbol XF86MonBrightnessUp

what's happening? and what should i do to correct it?
i'm using vaio s series laptop with kubuntu precise on it.

thanx ;)

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