Comment 30 for bug 1002788

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.