Onboard ignores touch input when input options set to single-touch or multi-touch

[robbyb413]

Installed onboard 1.0.0-0ubuntu4 under Linux Mint 17, 32bit. HP laptop with Wacom and noticed what I appears to be strange behavior.

Expected:

If Keyboard > Advanced > Input Options > Touch Input: "none" then Onboard does not respond to touch
If Keyboard > Advanced > Input Options > Touch Input: "single-touch" then Onboard responds to one touch instance at a time
If Keyboard > Advanced > Input Options > Touch Input "multi-touch" then Onboard responds to multiple touches at a time

Actual:

If Keyboard > Advanced > Input Options > Touch Input: "single-touch" then OnBoard does not respond to touch
If Keyboard > Advanced > Input Options > Touch Input "multi-touch" then OnBoard does not respond to touch
If Keyboard > Advanced > Input Options > Touch Input: "none" then OnBoard responds as single-touch

Changing Keyboard > Advanced > Input Options > Input event source between "XInput" and "GTK" does not seem to impact this.

Seems like a bug, didn't find anything about this when searching to posting it here.

[marmuta (marmuta)]

Thanks for the details, "wacom" is the key word. This is most likely bug #1297692.

One fix is to get the updated Onbord from our snapshot PPA at
https://launchpad.net/~onboard/+archive/snapshots
but you will still only get single "touch" out of Onboard, same as if
Keyboard > Advanced > Input Options > Touch Input = none.

In order to get multi-touch in Onboard (and elsewhere) you have to disable the wacom driver's gesture support, see https://bugs.launchpad.net/ubuntu/+source/onboard/+bug/1297692/comments/28.
If you do this you don't have to update Onboard.
Something like
xsetwacom --set "Wacom ISDv4 E6 Finger touch" Gesture off

If that fails you can run
xsetwacom --list
to get the name of the touch device.