Description:
I've just installed KDE 4.5 from testing.

When do 'sudo init 5', X doesn't start, and shows me errors because of my keyboard, which are clearly NOT related to the real issue.

'startx' as well as 'xinit' and 'sudo /etc/rc.d/kdm start' don't work.

Then I changed the line GreeterUID=kdm to GreeterUID= in /usr/share/config/kdm/kdmrc. Then 'sudo /etc/rc.d/kdm start' works again, I can see kdm and log in. But 'startx', 'xinit' and 'sudo init 5' still don't work. Is it right to have GreeterUID=kdm in the file? Isn't it a bug?

The problem is: xorg won't start with KDM at boot, only CLI login is possible! Using GDM instead of KDM in /etc/inittab works fine.

Additional info:
My config: Linux phoenix 2.6.35-ARCH #1 SMP PREEMPT Sat Aug 21 07:23:08 UTC 2010 i686 Intel(R) Core(TM)2 Duo CPU E8200 @ 2.66GHz GenuineIntel GNU/Linux


* package version(s)

My packages:
local/kernel26 2.6.35.3-1 (base)
local/kernel26-docs 2.6.35.3-1
local/kernel26-headers 2.6.35.3-1
local/kernel26-lts 2.6.32.20-1
local/kernel26-lts-headers 2.6.32.20-1
local/kernel26-manpages 2.6.35.3-1
local/linux-firmware 20100807-1

local/xf86-input-acecad 1.4.0-2 (xorg-input-drivers)
local/xf86-input-aiptek 1.3.0-2 (xorg-input-drivers)
local/xf86-input-elographics 1.2.4-1 (xorg-input-drivers)
local/xf86-input-evdev 2.4.0-2 (xorg-input-drivers)
local/xf86-input-fpit 1.3.0-5 (xorg-input-drivers)
local/xf86-input-hyperpen 1.3.0-4 (xorg-input-drivers)
local/xf86-input-joystick 1.5.0-2 (xorg-input-drivers)
local/xf86-input-keyboard 1.4.0-2 (xorg-input-drivers)
local/xf86-input-mouse 1.5.0-2 (xorg-input-drivers)
local/xf86-input-mutouch 1.2.1-5 (xorg-input-drivers)
local/xf86-input-penmount 1.4.1-2 (xorg-input-drivers)
local/xf86-input-synaptics 1.2.2-2 (xorg-input-drivers)
local/xf86-input-vmmouse 12.6.7-1 (xorg-input-drivers)
local/xf86-input-void 1.3.0-2 (xorg-input-drivers)
local/xf86-video-intel 2.12.0-1 (xorg-video-drivers)
local/xf86-video-v4l 0.2.0-5 (xorg-video-drivers)
local/xf86-video-vesa 2.3.0-2 (xorg xorg-video-drivers)
local/xorg-apps 7.5-3
local/xorg-docs 1.5-1 (xorg)
local/xorg-font-utils 7.5-2
local/xorg-fonts-100dpi 1.0.1-3 (xorg)
local/xorg-fonts-75dpi 1.0.1-3 (xorg)
local/xorg-fonts-alias 1.0.2-1
local/xorg-fonts-encodings 1.0.3-1
local/xorg-fonts-misc 1.0.1-1
local/xorg-res-utils 1.0.3-3 (xorg)
local/xorg-server 1.8.1.902-1 (xorg)
local/xorg-server-utils 7.5-5 (xorg)
local/xorg-twm 1.0.4-3 (xorg)
local/xorg-utils 7.6-2 (xorg)
local/xorg-xauth 1.0.4-1
local/xorg-xfs 1.1.0-1
local/xorg-xinit 1.2.1-1 (xorg)
local/xorg-xkb-utils 7.5-2
local/xterm 261-1 (xorg)

local/kdebase-dolphin 4.5.0-1 (kde kdebase)
local/kdebase-kappfinder 4.4.5-1 (kde kdebase)
local/kdebase-kdepasswd 4.5.0-1 (kde kdebase)
local/kdebase-kdialog 4.5.0-1 (kde kdebase)
local/kdebase-kfind 4.5.0-1 (kde kdebase)
local/kdebase-konqueror 4.5.0-1 (kde kdebase)
local/kdebase-konsole 4.5.0-1 (kde kdebase)
local/kdebase-kwrite 4.5.0-1 (kde kdebase)
local/kdebase-lib 4.5.0-1
local/kdebase-plasma 4.5.0-1 (kde kdebase)
local/kdebase-runtime 4.5.0-1
local/kdebase-workspace 4.5.0-2 (kde)


* config and/or log files etc.
xorg.conf, nothing specific in xorg.conf.d
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/local/"
FontPath "/usr/share/fonts/misc/"
FontPath "/usr/share/fonts/TTF/"
FontPath "/usr/share/fonts/OTF/"
FontPath "/usr/share/fonts/Type1/"
FontPath "/usr/share/fonts/100dpi/"
FontPath "/usr/share/fonts/75dpi/"
EndSection

Section "Module"
Load "dbe"
Load "glx"
Load "dri"
Load "record"
Load "dri2"
Load "extmod"
EndSection

Section "ServerFlags"
Option "AIGLX"
EndSection

Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
EndSection

Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
### [arg]: arg optional
#Option "NoAccel" # [<bool>]
#Option "SWcursor" # [<bool>]
#Option "ColorKey" # <i>
#Option "CacheLines" # <i>
#Option "Dac6Bit" # [<bool>]
#Option "DRI" # [<bool>]
#Option "NoDDC" # [<bool>]
#Option "ShowCache" # [<bool>]
#Option "XvMCSurfaces" # <i>
#Option "PageFlip" # [<bool>]
Option "AccelMethod" "UXA"
Identifier "Card0"
Driver "intel"
VendorName "Intel Corporation"
BoardName "82Q35 Express Integrated Graphics Controller"
BusID "PCI:0:2:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
Option "XaaNoOffscreenPixmaps" "true"
EndSection

Section "InputClass"
Identifier "Keyboard Defaults"
MatchIsKeyboard "yes"
Option "XkbLayout" "be"
EndSection

Section "Monitor"
Identifier "Monitor0"
DisplaySize 376 301 # In millimeters
Option "Primary" "true"
#Option "UseEdidDpi" "False"
#Option "DPI" "86 x 86"
EndSection

Section "Extensions"
Option "Composite" "Enable"
EndSection



Steps to reproduce:
As explained higher in this post.