multi-touch-dev team mailing list archive

[Lukas-David Gorris <lukas@xxxxxxxxxxxxx>]

Hello,

I am currently working on making ubuntu natty work on my htc hd2 smartphone.
The device's touchscreen and display driver default to a portrait mode  
(480x800).
I prefer using landscape (800x480) mode for various reasons.

Setting the display rotation is trivial via xorg.conf :

Section "Monitor"
	Identifier "Monitor0"
	Mode "480x800"
        	DotClock 0
		HTimings 480 480 480 480
		VTimings 800 800 800 800
		Flags    "-HSync" "-VSync"
	EndMode
EndSection


Section "Device"
        Identifier      "fbdev"
        Driver  "fbdev"
	Option "ShadowFB" "on"
	Option "Rotate" "CW"
EndSection


The touchscreen rotation was realized in maverick via xinput . The htc  
hd2 touchscreen driver can be compiled with or without multi touch  
support as described in https://bugs.launchpad.net/utouch/+bug/627629 .
With the single touch mode, touchscreen rotation works in maverick  
with following script:


xinput set-prop leo-touchscreen "Evdev Axis Calibration" 972 4 569 15
xinput set-prop leo-touchscreen "Evdev Axis Inversion" 1, 0
xinput set-prop leo-touchscreen "Evdev Axes Swap" 1


Calibration data was obtained as follows:
ts_calibrate was used to create /etc/pointercal . Then /etc/pointercal  
was converted to xinput format with a script that I cannot find any  
longer.

With multi touch enabled in the driver, the script does not work in  
maverick. A possible reason might be that the calibration data was  
obtained in single touch mode. Because I cannot find out how to  
provide xinput calibration data (with the script being lost) I cannot  
test this.


With the single touch driver in natty I expected the xinput script to  
work in the same way as it does in maverick. Unfortunately it does not  
and I am not certain why. I am thinking of a possible interference  
with utouch system.


Summary:

How to rotate the touchscreen when using the multi touch driver ?

Why is xinput rotation broken in natty while it works with the same  
touchscreen driver in maverick ?


Best regards,

Lukas