hello,
if you only have english keyboard layout when you start KDE with nomachine as me, create this bash (default french keyboard) and copy this bash content on your /home/xxxx/.kde/Autostart
you can find good xmodmap files by launching ubuntu livecd and
try "locate xmodmap" shell command
***************************** keyboard.sh
xmodmap -e 'clear Mod1'
xmodmap -e 'clear Mod2'
xmodmap -e 'keycode 9 = Escape Escape'
xmodmap -e 'keycode 10 = ampersand 1'
xmodmap -e 'keycode 11 = eacute 2 dead_tilde'
xmodmap -e 'keycode 12 = quotedbl 3 numbersign'
xmodmap -e 'keycode 13 = apostrophe 4 braceleft'
xmodmap -e 'keycode 14 = parenleft 5 bracketleft'
xmodmap -e 'keycode 15 = minus 6 bar'
xmodmap -e 'keycode 16 = egrave 7 dead_grave'
xmodmap -e 'keycode 17 = underscore 8 backslash'
xmodmap -e 'keycode 18 = ccedilla 9 asciicircum'
xmodmap -e 'keycode 19 = agrave 0 at'
xmodmap -e 'keycode 20 = parenright degree bracketright'
xmodmap -e 'keycode 21 = equal plus braceright'
xmodmap -e 'keycode 22 = BackSpace'
xmodmap -e 'keycode 23 = Tab Tab'
xmodmap -e 'keycode 24 = a'
xmodmap -e 'keycode 25 = z'
xmodmap -e 'keycode 26 = e E EuroSign'
xmodmap -e 'keycode 27 = r'
xmodmap -e 'keycode 28 = t'
xmodmap -e 'keycode 29 = y'
xmodmap -e 'keycode 30 = u'
xmodmap -e 'keycode 31 = i'
xmodmap -e 'keycode 32 = o'
xmodmap -e 'keycode 33 = p'
xmodmap -e 'keycode 34 = dead_circumflex dead_diaeresis'
xmodmap -e 'keycode 35 = dollar sterling currency'
xmodmap -e 'keycode 36 = Return'
xmodmap -e 'keycode 37 = Control_L'
xmodmap -e 'keycode 38 = q'
xmodmap -e 'keycode 39 = s'
xmodmap -e 'keycode 40 = d'
xmodmap -e 'keycode 41 = f'
xmodmap -e 'keycode 42 = g'
xmodmap -e 'keycode 43 = h'
xmodmap -e 'keycode 44 = j'
xmodmap -e 'keycode 45 = k'
xmodmap -e 'keycode 46 = l'
xmodmap -e 'keycode 47 = m M'
xmodmap -e 'keycode 48 = ugrave percent'
xmodmap -e 'keycode 49 = twosuperior'
xmodmap -e 'keycode 50 = Shift_L'
xmodmap -e 'keycode 51 = asterisk mu'
xmodmap -e 'keycode 52 = w'
xmodmap -e 'keycode 53 = x'
xmodmap -e 'keycode 54 = c'
xmodmap -e 'keycode 55 = v'
xmodmap -e 'keycode 56 = b'
xmodmap -e 'keycode 57 = n'
xmodmap -e 'keycode 58 = comma question dead_cedilla'
xmodmap -e 'keycode 59 = semicolon period'
xmodmap -e 'keycode 60 = colon slash Multi_key'
xmodmap -e 'keycode 61 = exclam section'
xmodmap -e 'keycode 62 = Shift_R'
xmodmap -e 'keycode 63 = KP_Multiply'
xmodmap -e 'keycode 64 = Alt_L Meta_L'
xmodmap -e 'keycode 65 = space space'
xmodmap -e 'keycode 66 = Caps_Lock'
xmodmap -e 'keycode 67 = F1 F11'
xmodmap -e 'keycode 68 = F2 F12'
xmodmap -e 'keycode 69 = F3 F13'
xmodmap -e 'keycode 70 = F4 F14'
xmodmap -e 'keycode 71 = F5 F15'
xmodmap -e 'keycode 72 = F6 F16'
xmodmap -e 'keycode 73 = F7 F17'
xmodmap -e 'keycode 74 = F8 F18'
xmodmap -e 'keycode 75 = F9 F19'
xmodmap -e 'keycode 76 = F10 F20'
xmodmap -e 'keycode 77 = Num_Lock'
xmodmap -e 'keycode 78 = Scroll_Lock'
xmodmap -e 'keycode 79 = KP_7'
xmodmap -e 'keycode 80 = KP_8'
xmodmap -e 'keycode 81 = KP_9'
xmodmap -e 'keycode 82 = KP_Subtract'
xmodmap -e 'keycode 83 = KP_4'
xmodmap -e 'keycode 84 = KP_5'
xmodmap -e 'keycode 85 = KP_6'
xmodmap -e 'keycode 86 = KP_Add'
xmodmap -e 'keycode 87 = KP_1 KP_End'
xmodmap -e 'keycode 88 = KP_2'
xmodmap -e 'keycode 89 = KP_3'
xmodmap -e 'keycode 90 = KP_0 KP_Insert'
xmodmap -e 'keycode 91 = KP_Decimal KP_Delete'
xmodmap -e 'keycode 92 = Sys_Req'
xmodmap -e 'keycode 94 = less greater bar'
xmodmap -e 'keycode 95 = F11 F11'
xmodmap -e 'keycode 96 = F12 F12'
xmodmap -e 'keycode 98 = Up'
xmodmap -e 'keycode 99 = Prior'
xmodmap -e 'keycode 100 = Left'
xmodmap -e 'keycode 102 = Right'
xmodmap -e 'keycode 104 = Down'
xmodmap -e 'keycode 105 = Next'
xmodmap -e 'keycode 106 = Insert'
xmodmap -e 'keycode 107 = Delete'
xmodmap -e 'keycode 108 = KP_Enter'
xmodmap -e 'keycode 109 = Control_R'
xmodmap -e 'keycode 110 = Find'
xmodmap -e 'keycode 112 = KP_Divide'
xmodmap -e 'keycode 113 = Mode_switch'
xmodmap -e 'keycode 114 = Break'
xmodmap -e 'keycode 116 = Mode_switch'
xmodmap -e 'keycode 117 = Multi_key'
xmodmap -e 'add Mod1 = Alt_L'
xmodmap -e 'add Mod2 = Mode_switch'
******************************************
HTH