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https://bugs.launchpad.net/ubuntu/+source/xinput/+bug/1574341/+attachment/4938670/+files/uname

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https://bugs.launchpad.net/bugs/1574341

Title:
  [Asus T300 CHI] Synaptics Touch Digitizer V04 - no multitouch

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged
Status in xinput package in Ubuntu:
  Triaged

Bug description:
  This is a related but separate issue to bug #1480673  "Asus T300 CHI
  bluetooth Touchpad is recognized incorrectly".

  Affecting this digitizer is also bug #1574028 "Asus T300 CHI:
  touchscreen digitiser missing at boot".

  Using 16.04 amd64 Ubuntu (unity).

  In this case the USB-attached "Synaptics Touch Digitizer V04" fails to
  provide any multitouch functionality.

  'evtest' shows multitouch events happening.

  $ lsusb
  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 001 Device 007: ID 06cb:11ef Synaptics, Inc.
  Bus 001 Device 005: ID 04f2:b3d5 Chicony Electronics Co., Ltd
  Bus 001 Device 003: ID 8087:0a2a Intel Corp.
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

  ~$ xinput --list
  ⎡ Virtual core pointer                          id=2    [master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
  ⎜   ↳ ASUS T300CHI DOCKING                      id=9    [slave  pointer  (2)]
  ⎜   ↳ SYNAPTICS Synaptics Touch Digitizer V04   id=11   [slave  pointer  (2)]
  ⎜   ↳ SYNAPTICS Synaptics Touch Digitizer V04 Pen       id=12   [slave  
pointer  (2)]
  ⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
      ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
      ↳ Power Button                              id=6    [slave  keyboard (3)]
      ↳ Video Bus                                 id=7    [slave  keyboard (3)]
      ↳ Sleep Button                              id=8    [slave  keyboard (3)]
      ↳ USB2.0 HD UVC WebCam                      id=10   [slave  keyboard (3)]
      ↳ Asus WMI hotkeys                          id=13   [slave  keyboard (3)]
      ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]
      ↳ ASUS T300CHI DOCKING                      id=15   [slave  keyboard (3)]

  $ ll /sys/bus/hid/drivers/hid-multitouch/
  total 0
  drwxr-xr-x 2 root root    0 Apr 24 18:12 ./
  drwxr-xr-x 4 root root    0 Apr 24 18:12 ../
  lrwxrwxrwx 1 root root    0 Apr 24 18:12 0003:06CB:11EF.0003 -> 
../../../../devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/0003:06CB:11EF.0003/
  --w------- 1 root root 4096 Apr 24 18:12 bind
  lrwxrwxrwx 1 root root    0 Apr 24 18:12 module -> 
../../../../module/hid_multitouch/
  --w------- 1 root root 4096 Apr 24 18:12 new_id
  --w------- 1 root root 4096 Apr 24 18:12 uevent
  --w------- 1 root root 4096 Apr 24 18:12 unbind

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