Palm detection issues?

[GoogleCodeExporter]

Does touchegg do any palm detection? I have my xorg driver configured for palm 
detection,  but for some reason, I keep getting the right click menu when both 
of my hands are on the keyboard and both palms touch the trackpad.

This can be tested by placing one palm on the touchpad and then two palms.  As 
you can see, with one palm, a click does not get registered because of palm 
detection.  However, when two palms are placed on the touchpad, the touchegg 
"2-finger tap" gesture gets executed.

Original issue reported on code.google.com by bendavi...@gmail.com on 5 Nov 2011 at 8:00

[GoogleCodeExporter]

Typically synaptics supports palm detection, but for my don't work very fine :S 
This is a synaptics issue, try to ask to the synaptics developers ;)

Original comment by jose.exposito89@gmail.com on 6 Nov 2011 at 1:33

• Changed state: WontFix
• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

At the moment, I'm not convinced that this is a problem with the synaptics 
driver, as I don't have the problem when touchegg is not running.  I now 
believe this is more about finger pressure detection.  My palms are getting 
registered as very light touches. 

Using synclient, I set FingerHigh=255, meaning touch should not get registered 
at any pressure.  When touchegg is running, I can't do a single-finger tap, as 
expected. However, when I use two fingers, the tap gets registered even at the 
lightest touch.

In contrast, when touchegg is *not* running, and with FingerHigh=255, neither 
one nor two finger touches get registered, as expected. Then when I set 
FingerHigh back to a reasonable number (eg, 75), everything works as it should.

Are you able to reproduce this on your machine?  How does touchegg interact 
with the synaptics driver?  Does synaptics send any info on finger pressure?

Original comment by bendavi...@gmail.com on 6 Nov 2011 at 5:11

[GoogleCodeExporter]

I just realized I can work around this issue for now by simply not having 
touchegg manage two-finger taps, and delegate those to synaptics driver :-)

Original comment by bendavi...@gmail.com on 6 Nov 2011 at 5:47

[GoogleCodeExporter]

Cool! I thing that uTouch (the library that uses Touchégg) overrides these 
features... you can try to report this bug in the uTouch page

Greetings!

Original comment by jose.exposito89@gmail.com on 6 Nov 2011 at 6:11