[Daryna KDE] Keyboard issue on laptop

[ed@Mint]

Hello all
New Linux Mint user inside

First of all, i'd like to say thanks to everybody at Mint for the work.
I have mint installed since a couple of days and i really like the look&feel.

However, i still got two problems :
- some hotkeys don't work
- i get no sound (but i haven't yet checked that out)

For the keyboard, here is the problem :
I have a Dell Vostro 1500 laptop and i have a "Fn" key on the keyboard for special actions.
But the combinations to adjust the brightness of the screen doesn't work.
The combinations are : <Fn>+<Up_arrow> and <Fn>+<Down_arrow>

First solution :
KDE control center -> region & accessibility ->actions (second item) -> tried to make new one but when I assign the combination, i doesn't seem to be recognised.
(all other combinations even with fn key work)
KDE control center -> region & accessibility -> keyboards shortcuts (last item)-> nothing found to alter brightness

-> Do I have to set a binding to call some command here ?
If so, does anybody know the command?

Second solution :

I used

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$ xev

to get the keycodes of the keys :

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<Fn> : no keycode
<Up_arrow> : keycode = 98
<Down_arrow> : keycode = 104
<Fn>+<Up_arrow> : keycode = 212, no keysim
<Fn>+<Down_arrow> : keycode = 101, no keysim


Checked with :

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$ xmodmap -pke

no mapping for keycode 212 & 101

I tried to bind with events found in XKeysimDB : XF86BrightnessAdjust but doesn't work.

Third solution :
In xorg.conf, it looks like my keyboard is controlled by xkb

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...
Section "InputDevice"
    Identifier     "Generic Keyboard"
    Driver         "kbd"
    Option         "CoreKeyboard"
    Option         "XkbRules" "xorg"
    Option         "XkbModel" "pc105"
    Option         "XkbLayout" "be"
EndSection
...


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ed@mintX:~$ setxkbmap -print
xkb_keymap {
        xkb_keycodes  { include "xfree86+aliases(azerty)"       };
        xkb_types     { include "complete"      };
        xkb_compat    { include "complete"      };
        xkb_symbols   { include "pc(pc105)+be+inet(latitude)"   };
        xkb_geometry  { include "pc(latitude)"  };
};


There are some templates already defined for other dell laptops (like latitude) but they don't work for brightness
(at least they make multimedia keys works which is already nice)

[*] Do i have to make my own template from scratch ? (already read how to but didn't try yet)

Fourth solution :
I tried a GUI tool called KeyTouch, i didn't work either (i didn't make an exhaustive test though)

So here it is. I would be glad is anybody could give me any idea about which solution's the best.
Thanks in advance.
ed

[67GTA]

I haven't found a solution to multimedia keys either. My problem is the volume up key stops at 11%. Everything else works after installing and configuring keytouch. It takes a little patience to set up, but it will work. I also had to uninstall kmilo for keytouch to take hold.

[ed@Mint]

Did you manage to configure keys for screen brightness in particular ?
I can't find the option

tx for your answer btw

[67GTA]

I couldn't find any brightness keys configuration options.