Very strange problem with input events

[Cedric Sodhi]

If that helps, evtest returns the following data when I "tap" the
screen.

On Sun, Jul 08, 2012 at 01:01:16AM +0200, Cedric Sodhi wrote:
> Sorry if this gets not in line with the original thread:
> 
> http://comments.gmane.org/gmane.comp.freedesktop.xorg.devel/31159
> 
> Peter, I'm not absolutely convinced what happend then and why the
> problem seemed fixed, but I'm afraid the mixing-up of touchpoints was
> just one of multiple problems.
> 
> With the latest kernel the results in mtview look o.k., but I still do
> get those strange effects where, as soon as I touch the touchscreen, all
> subsequent operations which involve clicks behave strangely (in some
> cases as if I had not released a mouse button or pressed another one).
> 
> Could you or anyone suggest how to proceed from here? I quote a few
> installed libs for completeness:
> 
> [ebuild   R    ] sys-libs/mtdev-1.1.2 
> [ebuild   R    ] x11-proto/inputproto-2.2 
> [ebuild   R    ] x11-base/xorg-server-1.12.2 
> [ebuild   R    ] x11-drivers/xf86-input-evdev-2.7.0 
> 
> regards,
> Cedric
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-------------- next part --------------
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0xeef product 0xa001 version 0x210
Input device name: "eGalax_eMPIA Technology Inc. PCAP MultiTouch Controller"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 330 (BTN_TOUCH)
  Event type 3 (EV_ABS)
    Event code 0 (ABS_X)
      Value  17504
      Min        0
      Max    32767
      Fuzz       7
    Event code 1 (ABS_Y)
      Value  23472
      Min        0
      Max    32767
      Fuzz       7
    Event code 47 (ABS_MT_SLOT)
      Value      0
      Min        0
      Max        9
    Event code 53 (ABS_MT_POSITION_X)
      Value      0
      Min        0
      Max    32767
      Fuzz       7
    Event code 54 (ABS_MT_POSITION_Y)
      Value      0
      Min        0
      Max    32767
      Fuzz       7
    Event code 57 (ABS_MT_TRACKING_ID)
      Value      0
      Min        0
      Max    65535
Properties:
  Property type 1 (INPUT_PROP_DIRECT)
Testing ... (interrupt to exit)
Event: time 1341702526.689285, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 13
Event: time 1341702526.689287, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 15680
Event: time 1341702526.689287, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 22368
Event: time 1341702526.689296, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1341702526.689298, type 3 (EV_ABS), code 0 (ABS_X), value 15680
Event: time 1341702526.689299, type 3 (EV_ABS), code 1 (ABS_Y), value 22368
Event: time 1341702526.689299, -------------- SYN_REPORT ------------
Event: time 1341702526.734291, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 15664
Event: time 1341702526.734302, type 3 (EV_ABS), code 0 (ABS_X), value 15664
Event: time 1341702526.734303, -------------- SYN_REPORT ------------
Event: time 1341702526.762290, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value -1
Event: time 1341702526.762299, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0
Event: time 1341702526.762300, -------------- SYN_REPORT ------------