I'm on Mandriva Linux Cooker and I have the following in my 
/etc/X11/xorg.conf :

{{{{{{{{{{{{{{{{{{


Section "InputDevice"
    Identifier "Keyboard1"
    Driver "kbd"
    Option "XkbModel" "pc105"
    Option "XkbLayout" "us,il"
    Option "XkbCompat" ""
    Option "XkbVariant" ",lyx"
    Option "XkbOptions" "compose:rwin,grp:switch,grp:alt_shift_toggle,grp_led:scroll"
EndSection

.
.
.

Section "ServerLayout"
    Identifier "layout1"
    InputDevice "Keyboard1" "CoreKeyboard"
    InputDevice "Mouse1" "CorePointer"
    Screen "screen1"
EndSection

}}}}}}}}}}}}}}}}}}

After starting the X server I have the following setxkbmap -print:

{{{{{{{{{{{
xkb_keymap {
        xkb_keycodes  { include "evdev+aliases(qwerty)"        };
        xkb_types     { include "complete"        };
        xkb_compat    { include "complete+ledscroll(group_lock)"        };
        xkb_symbols   { include "pc+us+il:2+inet(evdev)+group(alt_shift_toggle)+compose(rwin)"        };
        xkb_geometry  { include "pc(pc104)"        };
};
}}}}}}}}}}}

And then what happens is that the keyboard misbehaves when switching from
Hebrew to English and back - sometimes the LED is on when it's English
and vice versa.

When I run the following script:

{{{{
#!/bin/sh

# setxkbmap -option grp:switch,grp:alt_shift_toggle,grp_led:scroll -variant ",phonetic," 'us,ru,il'

setxkbmap \
    -option "compose:rwin,grp:switch,grp:alt_shift_toggle,grp_led:scroll"  \
    -variant ",lyx" \
    'us,il'

}}}}

I'm getting the following setxkbmap -print:

{{{{
xkb_keymap {
	xkb_keycodes  { include "evdev+aliases(qwerty)"	};
	xkb_types     { include "complete"	};
	xkb_compat    { include "complete+ledscroll(group_lock)"	};
	xkb_symbols   { include "pc+us+il(lyx):2+inet(evdev)+group(switch)+group(alt_shift_toggle)+compose(rwin)"	};
	xkb_geometry  { include "pc(pc104)"	};
};
}}}}

Which behaves perfectly OK.

The xorg.conf worked up to a few weeks ago, so I don't understand why it
isn't working properly now.