Double pointer and application freeze if I use lenovo pen
I am using a lenovo yoga 520 equipped with a lenovo pen. When I use the latter, two pointers are created, the first is stopped in the last position that I gave it from the touchpad, while the second, follows the pen. So far nothing serious. Except that after a while everything becomes unusable, because single touches with the pen are detected as a hold (as if the left touchpad button was held down), then start dragging application icons here and there, until it doesn't even respond plus the touches, as if it were all freeze. I can't even anymore restart it normally and I am forced to restart forcefully. I am on Debian testing, but on the stable branch I had the same problem. I confirm that everything works properly on xorg, I don't even know the double pointer problem.