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Windows Touch Digitizer Jitter Test - Five Contacts

  • Article

This test verifies that a Windows Touch device does not exceed the allowable amount of jitter (a maximum of 1 millimeter over 10 millimeters of travel).

Test details

   
Specifications
  • Device.Input.Digitizer.Touch.Jitter
  • Device.Input.Digitizer.Touch.HIDCompliant
Platforms
  • Windows 10, client editions (x86)
  • Windows 10, client editions (x64)
  • Windows 10, client editions (Arm64)
Supported Releases
  • Windows 10
  • Windows 10, version 1511
  • Windows 10, version 1607
  • Windows 10, version 1703
  • Windows 10, version 1709
  • Windows 10, version 1803
  • Windows 10, version 1809
  • Windows 10, version 1903
  • Next update to Windows 10
Expected run time (in minutes) 4
Category Compatibility
Timeout (in minutes) 240
Requires reboot false
Requires special configuration false
Type automatic

 

Additional documentation

Tests in this feature area might have additional documentation, including prerequisites, setup, and troubleshooting information, that can be found in the following topic(s):

Running the test

Before you run the test, complete the test setup as described in the test requirements: Windows Touch Testing Prerequisites.

Clean input is important throughout the system and across applications. Whether a user is performing a hold gesture to learn more about a user interface (UI) element, playing a game, or holding a key on the software keyboard, this fidelity allows software to correctly interpret a user's intention and provide an optimal touch experience.

This test presents twelve distinct scenarios that examine jitter during static contact, linear motion, and radial motion. Most of these interactions require the use of assistive technology.

In addition to validating that the jitter specification is respected, this test verifies that HID reports conform to the HID protocol that is described in Windows Pointer Device Data Delivery Protocol and defined in the HID I2C v1.0 Protocol Specification.

Troubleshooting

For generic troubleshooting of HLK test failures, see Troubleshooting Windows HLK Test Failures.

For troubleshooting information, see Troubleshooting Device.Input Testing and the Hardware Component Guidelines for Windows Digitizer Class Input Devices.

More information

Command syntax

Command option Description

Logo3.exe -config DigitizerJitter.json

Runs the test.

 

File list

File Location

DigitizerJitter.json

<testbinroot>\digitizer\Win8Touch

Logo3.exe

<testbinroot>\digitizer\Win8Touch