This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1600371
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1600371
Title:
Gnome freezes for some seconds on simultaneous touch and stylus input
(palm rejection fails)
Status in linux package in Ubuntu:
Incomplete
Bug description:
My notebook (Lenovo Yoga S1) has a capacitive touch screen as well as
an inductive screen for styluses. When I rest my palm on the screen
and then hover my stylus above the screen so that the stylus is
recognized and the mouse pointer follows it, and then move the stylus
around Gnome seems to freeze for some seconds. The duration of the
freeze is proportional to the time the notebook received simultaneous
input from the two methods.
"Freeze" means that the screen is not updated. Keyboard inputs that I
make during the freeze would be executed after the freezing stops.
I do not need to touch the screen with the stylus for the bug to
occur. The bug occurs also when I actually touch the screen with the
stylus.
What I expect to happen (and what actually happens in all stylus-
supporting tablets, running with Android or Windows) is that the input
from the touch screen is rejected as long as the stylus is hovering
above the screen.
I'm running Ubuntu Gnome 16.04 (non-LTS) with the latest packages. The
problem was present in 15.10 as well.
I attach a script as a workaround solution.
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