I have trouble with the multitouch feature of 0.7.8-3 and 0.7.9-1 on a Lenovo
X61 TabletPC. The X driver does not differ correctly between the usage of the
pen and multitouch events which are also caused by pressing the pen on the
tablet. This cause a jumping cursor/stylus which lead to strange input.
Attached is a patch to fix the issue for the cursor/stylus (set lastismt back
if it wasn't a multitouch event and some other smaller changes). Unfortunatly
currently this fix not the eraser of the pen, but I'm working on it. This
change make the pen at least usable again.
The patch include also a new config option for xorg.conf to disable the
Multitouch feature completely. The new option is named "MultiTouch" and has
as value "off" to disable multitouch, any other value has no effect and let
the feature enabled. The option get only parsed if the TabletPC ISD V4
protocol get forced.