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Hi!
Got the same problem at work with a Samung 173VT
connected to a Linux thinclient. I missed the mutouch driver in that Linux
distribution, but I only had to copy it from another Linux machine and put it in
/usr/X11R6/lib/modules/input. Then I got it working.The following XF86Config
entries solved the problem:
Section "Module"
Load
"mutouch"
EndSection
Section "InputDevice"
Identifier "touchscreen"
Driver "mutouch" Option "Device" "/dev/ttyS0" Option "Type" "finger" Option "MinX" "15200" Option "MaxX" "1000" Option "MinY" "1270" Option "MaxY" "15370" Option "SendCoreEvents" Option "SwapXY" "true" Option "SendDragEvents" "true" EndSection
Section "ServerLayout"
InputDevice "touchscreen"
"SendCoreEvents"
EndSection
This is what happened: SwapXY takes care of flipping the X-Y
axes back. The Y-axis was correct after that, but the X-axis
moved opposite to my finger. I found out that setting MinX to the higher number
and MaxX to the lower number inverted the X-axis to normal response.
The next problem was to calibrate the touchscreen. I don't know where the
numbers 16383 and 0 comes from (ref the How To,s found on the net), but I would
think they are screen resolution specific. In the case of the Samsung
173VT, it uses a resolution of 1280*1024 and the numbers I came up with is
completely different as you can see. This is the method I used to calibrate
the screen with MinX, MaxX, MinY and MaxY:
1. Touch the upper left corner
2. See where the cursor goes.
3. To tune the cursor: LEFT - decrease
MinX, RIGHT - increase MinX, UP - decrease
MaxY, DOWN - increase MaxY
4. Touch the lower right corner
5. See where the cursor goes
6. To tune the cursor: LEFT - decrease
MaxX, RIGHT - increase MaxX, UP - decrease
MinY, DOWN - increase MinY
Notice, changing the numbers by 100 moves the cursor about 1 cm.
Maybe you can calibrate using software calibration toosl found on the web,
I haven't tried that.
Good luck
Hakan
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