Comment 15 for bug 1121379

I have performed some tests with raring beta2 (linux 3.8.0-16-generic, X.Org X Server 1.13.3 - 2013-03-07 -, unity 6.12.0daily13.04.01-0ububtu1). The touch screen does not work out of the box. After the first touch it no longer responds to touches.

After installing Benjamin's kernel module (hid-multitouch-3.6+) the touchscreen works as expected most of the time. The bug "triggered 'if(!(event->device_event.flags & (1 << 5)))'" described at my very first post here, still apears from time to time while using the touch screen. I have not verified yet under what exact circumstances. I have also noticed that using the touch screen with some applications cause subsequent failure of getting a click event by tapping. E.g. In firefox tap on the search box. Then open onBoard keyboard. Try to type something in firefox search box with onBoard. After the first character firefox popups search suggestions that seem to take the focus from the text-box and no other characters are typed. After that tapping anywhere on the screen fails to produce a click. The problem may be solved by switching a couple of times between open windows/applications with alt+tab using the physical keyboard, or with logging out and in again. (Could this be related with the appearance of the bug error line in Xorg.0.log? ) The same problem exists with chromium web browser, when trying to tap on the options menu icon.

The good news is that nautilus is working good with the touch screen. Double taps are correctly caught and interpreted to double clicks.

After all, apart from the bug error in Xorg.0.log (can anyone tell what does it mean??) and the failure of click under the circumstances I described above, the touchscreen works fine with 13.04 at a basic level. The main problem seems to be the lack of proper multitouch suport of the main applications. Firefox does not scroll or zoom with guestures (drag n scroll pluggin can help for scrolling), the same with chromium. Evince seems to have some support for touch. I enjoyed reading a pdf with good accelerated scrolling, but no luck with zoom with pinch. Libreoffice writer is hard to use with multitouch (no scroll with drag).

I have read on the web about an ubuntu version oriented to tablets that is being prepared. From what I know it is tested against samsung galaxy tablets and has released some testing images for these devices (non x86 processors). Is there any luck that we will have some of the achievements of that project coming to the desktop x86 version of ubuntu?