[Gta04-owner] touchscreen with X with different kernels

Dr. H. Nikolaus Schaller hns at goldelico.com
Sat Apr 14 13:22:17 CEST 2012


Am 14.04.2012 um 13:16 schrieb Andreas Kemnade:

> Hi,
> 
> On Sat, 2012-04-14 at 13:04 +0200, Dr. H. Nikolaus Schaller wrote:
>> Hi Andreas,
>> 
>> Am 14.04.2012 um 12:35 schrieb Andreas Kemnade:
>> 
>>> Hi,
>>> 
>>> On Sat, 2012-04-14 at 10:58 +0000, Radek Polak wrote:
>>>> On Friday 13 April 2012 22:08:03 Andreas Kemnade wrote:
>>>> 
>>>>> When I use touchscreen with evdev x11 input driver and kernel 3.2, the
>>>>> pointer sometimes jumps away, when I'm using a virtual keyboard (short
>>>>> taps).
>>>> 
>>>> Have you tried using tslib instead of evdev? QtMoko is using tslib and the 
>>>> touchscreen works quite nice.
>>>> 
>>> Yes the Touchscreen in qtmoko works quite nice. 
>>> I have never got tslib working with kernel 3.2. 
>>> You seem to use the one from here:
>>> http://lindi.iki.fi/lindi/tslib/
>>> and not the one in standard debian.
>>> 
>>> That solves the problem and now if I'm using tslib from there, it works.
>>> Is it somewhere documented?
>> 
>> The Debian/LXDE in hw-validation also uses tslib and works fine.
>> 
> From there I started, then switched to kernel 3.2 and tslib stopped to
> work. Then I switched to evdev and I found out that I did more typos
> with that configuration.
> But I got the libts from squeeze never working with kernel 3.x.

Hm. What was changed in the Kernel input event system?
Or in the TSC2007 driver?

> Only the one from the link above which qtmoko seems to use.

What is the diff to the sources from squeeze?
Just some questions which may help to lead to answers...

Nikolaus


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