squeeze: touchpad funktioniert nicht mehr richtig

[rikola]

Hallo,

seit einem der letzten updates unter Debian squeeze laeuft das Touchpad meines Thinkpads R52 nicht mehr korrekt:
Der Mauszeige laesst sich bewegen, die Tasten funktionieren.
Jedoch funktionieren weder das Scrollen noch Klicken ueber das Touchpad.

Der entsprechende Abschnitt in xorg.conf:

Section "InputDevice"
        Identifier      "Synaptics Touchpad"
        Driver          "synaptics"
        Option          "SendCoreEvents"    "true"
        Option          "Device"            "/dev/input/event0"
        Option          "Protocol"          "auto-dev"
        Option          "HorizScrollDelta"  "0"
EndSection

(habe auch schon versucht, diesen Abschnitt ganz rauszunehmen oder Device auf /dev/psaux zu setzen, kein Unterschied)

Erkannt wird das Touchpad laut log-Datei schon, jedoch vielleicht zu spaet?
Auszug aus /var/log/Xorg.0.log

(II) RADEON(0): Setting screen physical size to 370 x 277
(II) Synaptics touchpad driver version 1.1.2
(**) Option "Device" "/dev/input/event0"
(**) Option "HorizScrollDelta" "0"
(--) Synaptics Touchpad: no supported touchpad found
(EE) Synaptics Touchpad Unable to query/initialize Synaptics hardware.
(EE) PreInit failed for input device "Synaptics Touchpad"
(II) UnloadModule: "synaptics"
(II) config/hal: Adding input device ThinkPad Extra Buttons
(II) LoadModule: "evdev"
(II) Loading /usr/lib/xorg/modules/input//evdev_drv.so

Fast am Ende jedoch:

(II) config/hal: Adding input device TPPS/2 IBM TrackPoint
(**) TPPS/2 IBM TrackPoint: always reports core events
(**) TPPS/2 IBM TrackPoint: Device: "/dev/input/event7"
(II) TPPS/2 IBM TrackPoint: Found 3 mouse buttons
(II) TPPS/2 IBM TrackPoint: Found x and y relative axes
(II) TPPS/2 IBM TrackPoint: Configuring as mouse
(**) TPPS/2 IBM TrackPoint: YAxisMapping: buttons 4 and 5
(**) TPPS/2 IBM TrackPoint: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
(II) XINPUT: Adding extended input device "TPPS/2 IBM TrackPoint" (type: MOUSE)
(**) TPPS/2 IBM TrackPoint: (accel) keeping acceleration scheme 1
(**) TPPS/2 IBM TrackPoint: (accel) filter chain progression: 2.00
(**) TPPS/2 IBM TrackPoint: (accel) filter stage 0: 20.00 ms
(**) TPPS/2 IBM TrackPoint: (accel) set acceleration profile 0
(II) TPPS/2 IBM TrackPoint: initialized for relative axes.
(II) config/hal: Adding input device SynPS/2 Synaptics TouchPad
(II) Synaptics touchpad driver version 1.1.2
(**) Option "Device" "/dev/input/event6"
(II) SynPS/2 Synaptics TouchPad: x-axis range 1472 - 5472
(II) SynPS/2 Synaptics TouchPad: y-axis range 1408 - 4448
(II) SynPS/2 Synaptics TouchPad: pressure range 0 - 255
(II) SynPS/2 Synaptics TouchPad: finger width range 0 - 0
(II) SynPS/2 Synaptics TouchPad: buttons: left right middle double triple
(--) SynPS/2 Synaptics TouchPad: touchpad found
(**) SynPS/2 Synaptics TouchPad: always reports core events
(II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD)
(**) SynPS/2 Synaptics TouchPad: (accel) keeping acceleration scheme 1
(**) SynPS/2 Synaptics TouchPad: (accel) filter chain progression: 2.00
(**) SynPS/2 Synaptics TouchPad: (accel) filter stage 0: 20.00 ms
(**) SynPS/2 Synaptics TouchPad: (accel) set acceleration profile 0
(--) SynPS/2 Synaptics TouchPad: touchpad found
(II) AIGLX: Suspending AIGLX clients for VT switch
disable LVDS
(II) RADEON(0): RADEONRestoreMemMapRegisters() :

Ach ja, die Xorg-Version ist:

X.Org X Server 1.6.3
Release Date: 2009-7-31
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.30.4-dsa-ia32 i686 Debian
Current Operating System: Linux goofy 2.6.30-1-686 #1 SMP Sat Aug 15 19:11:58 UT
C 2009 i686
Build Date: 06 August 2009  04:49:57PM
xorg-server 2:1.6.3-1+b1 (buildd@murphy.debian.org) 
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Wed Sep 16 20:22:03 2009
(==) Using config file: "/etc/X11/xorg.conf"
(==) ServerLayout "X.org Configured"
(**) |-->Screen "Screen0" (0)
(**) |   |-->Monitor "Monitor0"
(**) |   |-->Device "Card0"
(**) |-->Input Device "Synaptics Touchpad"
(**) |-->Input Device "Mouse0"
(**) |-->Input Device "Keyboard0"
(==) Automatically adding devices
(==) Automatically enabling devices

Waere dankbar fuer eine Tipp, wie ich das Touchpad wieder zum laufen bekomme.