Re: HID regression: Quanta touchscreen, device ID: 0408:3008

[Chase Douglas <chase.douglas@canonical.com>]

On 04/23/2012 08:48 AM, Benjamin Tissoires wrote:
> On Mon, Apr 23, 2012 at 17:42, Chase Douglas
> <chase.douglas@canonical.com> wrote:
>> On 04/23/2012 08:34 AM, Benjamin Tissoires wrote:
>>> The problem relies in the upper layers and not in the kernel: nobody
>>> took the time to code a X.org driver that handles true multitouch
>>> direct devices. You can eventually use the synaptics one, but you will
>>> have to deal with absolute/relative coordinates, and the last time I
>>> played with it, it was not convenient as I was not able to make GDM
>>> use the absolute coordinate system (I kow I should have patched the
>>> synaptics X.org driver).
>>
>> X now supports direct multitouch devices using the X evdev driver. This
>> may be a bug in the X server.
> 
> Yes it does, but does it also emulates right-clicks with double tap?
> (It's not an attack ;-), it's just a question as I did not followed
> the development of XInput 2.2 since a long time...)

No offense taken :). I merely wanted to point out that it could be a bug
in the X server, too.

In XI 2.2, there is only button 1 emulation. If you double tap it should
double click. If you press and hold, it should press and hold button 1.
There's no "gestural" interpretation in the X server that interprets
touchscreen input and causes a button 2 event.

-- Chase