3M CT150 Touch Screen problems with Ubuntu 8.04
I have a 3M CT150 touch screen device connected to my Ubuntu 8.04 machine via USB. It seems like the innate microtouch_drv.so driver that comes with Ubuntu is able to recongnize the screen.
Also, when I do "cat /proc/bus/input/devices" , I see the screen there :
I: Bus=0003 Vendor=0596 Product=0001 Version=0410
N: Name="3M 3M USB Touchscreen - EX II"
H: Handlers=mouse1 event4
B: KEY=400 0 0 0 0 0 0 0 0 0 0
I noticed something amiss in the X11 logs (/var/log/Xorg.0.log ) :
(**) Option "Device" "/dev/input/event4"
(**) Option "MinX" "-7185"
(**) Option "MaxX" "-7185"
(**) Option "MinY" "7013"
(**) Option "MaxY" "2474"
Unable to query/initialize MicroTouch hardware.
(EE) PreInit failed for input device "3MTouchScreen"
(II) UnloadModule: "microtouch"
The MinX to MaxY values are calculated using the TouchCal calibration program from SourceForge.
I don't know why the micro-touch driver will fail and unload.
Even though it looks like it failed, I can still use the touch screen. Except that the X-axis is flipped and the pointer is extremely jittery ( Y axis is fine )
Has anyone had any experience with these touch screen driver setups?