I'm using an up-to-date Raring install. I have this problem still, which
appears to be tied in some way to operations which tax the hardware in
some way, but I'll get back to that later. What is interesting in that
when the bug occurs, rendering the unity dash and GTK apps unusable with
the touch screen, nautilus is now the one application which continues to
work flawlessly.

I've tried using the xorg-edgers PPA to fix the issue but because it's
an all-or-nothing approach (you have to update every package in the
ppa), it renders Unity completely unstable - appears to be an intel
graphics regression causing massive slowdown whenever transparency or
blurring is used (Unity dash search, logout dialog etc) so I had to ppa-
purge and I can't tell if it fixed the issue.

With regards to the hardware taxing, it appears that the touch screen is
usable on boot up until any operation which seems to take a little
longer than usual. For instance, I have a custom built GTK application
which utilises a GtkToolPalette
(https://developer.gnome.org/gtk3/3.4/GtkToolPalette.html) which has a
nice smooth animation for opening the category. Whenever I tap one of
these headers with the touch screen, without fail, I can reproduce this
exact bug. It still happens occasionally with other tasks, but this
happens every time.

I wonder, with it possibly being performance-related, whether or not
this makes it harder for devs to reproduce the error? Either way, I'm
happy to provide any help I can with this bug, just let me know.

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1002788

Title:
  Using the touchscreen breaks normal device left clicking

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https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1002788/+subscriptions

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