Refresh Rate

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Note  This content applies to the Windows Logo Kit (WLK). For the latest information using the new Windows Hardware Certification Kit (HCK), see Windows HCK User's Guide on the Windows Hardware Dev Center.

Type: Manual Test

Overview

The Refresh Rate test verifies that the monitor supports ergonomic timing standards for CRTs. It also verifies the preferred display mode of the monitor (both CRT and LCD) based on the monitors EDID. In addition, the test checks for the support of the Industry Standard Timings for 640 x4 80 pixel format at 60 Hz refresh.

Details

This test examines supported modes (ergonomic modes for CRTs and the preferred mode for both CRTs and LCDs) in a monitor's extended display identification data (EDID) and verifies that the monitor can properly change to display in each mode. The test also tries to set 640 x 480 mode with a 60 Hz refresh to verify support for it.

Run Time: 1-5 mins (depending on the number of modes found)

Log File:

System Restart Required: No

Test Category:

Supported operating systems for Logo or Signature testing:

  • Windows 7

  • Windows Server 2008 R2

  • Windows Vista

  • Windows Server 2003

  • Windows XP

Program:

Requirements

Software Requirements

The test tool requires the following software:

  • Supported operating system (see list above).
  • Software components included with the device that is being tested.

Hardware Requirements

  • Device to be tested
  • Computer that meets the minimum software requirements
  • Windows keyboard
  • Two-button pointing device
  • Color display monitor capable of at least 1024 by 768 resolution, 32-bits per pixel, 60 Hz
  • Hard drive with a minimum of 20 GB available on partition C:

Processor

  • x86
  • x64

Running Refresh Rate

  1. Start the test.

  2. If the test finds any modes with ergonomic timings (CRTs), it will change to them, one by one, and display a message to let the user verify that each mode is correctly visible.

  3. The test will change to the preferred mode and let the user verify that it is correctly visible.

  4. The test will change to 640 x 480 at 60Hz and let the user verify that it is correctly visible (/DVI switch).

Command Syntax

Command option Description

/LCD

Runs the test for LCDs (Ergonomic timing is not verified). If this option is not specified, the test assumes the monitor to be a CRT and verified ergonomic modes too.

/DVI

Checks for the support of 640x480@60Hz

 

Test Assertions

B4.2.4.4 CRT-based display monitor supports ergonomic timing standards

Test Assertion GUID:

Windows Logo Program: DISPLAY-0066 CRT-based display monitor supports ergonomic timing standards

 

 

Build date: 9/14/2012