Setup/Tools Use SensorInfo (Download from Windows store) to visualize the ambient light sensor reading. Test 1. Open SensorInfo. Switch to the light sensor tab. Keep the app running and Procedure snap the app to the left side of the screen. Keep it visible throughout the steps. 2. Open the Display settings page and snap it to the side of the screen. 3. Toggle on "Change brightness automatically when lighting changes" checkbox. 4. Repeatedly toggle off and on "Change brightness automatically when lighting changes" checkbox to simulate starting and stopping sensors. 5. Verify that the lux value keeps reporting the same value/correct ambient light value. Evaluation Verify that the lux value keeps reporting the correct ambient light reading (Pass/Fail) when starting/stopping sensors. Triage Work with your sensor IHV to fix any issue if the lux value fluctuates when Notes starting/stopping the ambient light sensor. Test Name Reactivity to brightness changes Make sure the backlight panel is reactive to brightness changes Test Goal Applicable All systems supporting adaptive brightness to ReactivityScript.ps1 script (found at in the BrightnessTests folder) to switch the brightness up and down. You will want to switch your device to manual brightness. The script will switch the screen brightness up immediately between 0 and 100. Optional: use a brightness (nits) meter to measure the screen brightness Test 1. Make sure the screen is displaying as much as possible (one option: Procedure open notepad and maximize it on the screen) 2. Start the ReactivityScript.ps1 script and observe the screen behavior. The screen should transition as quickly as possible, without any delays in brightness.
Setup/Tools Use SensorInfo (Download from Windows store) to visualize the ambient light sensor reading. Test Procedure 1. Open SensorInfo. Switch to the light sensor tab. Keep the app running and snap the app to the left side of the screen. Keep it visible throughout the steps. 2. Open the Display settings page and snap it to the side of the screen. 3. Toggle on "Change brightness automatically when lighting changes" checkbox. 4. Repeatedly toggle off and on "Change brightness automatically when lighting changes" checkbox to simulate starting and stopping sensors. 5. Verify that the lux value keeps reporting the same value/correct ambient light value. Evaluation (Pass/Fail) Verify that the lux value keeps reporting the correct ambient light reading when starting/stopping sensors. Triage Notes Work with your sensor IHV to fix any issue if the lux value fluctuates when starting/stopping the ambient light sensor. Test Name Reactivity to brightness changes Test Goal Make sure the backlight panel is reactive to brightness changes Applicable to All systems supporting adaptive brightness ReactivityScript.ps1 script (found at in the BrightnessTests folder) to switch the brightness up and down. You will want to switch your device to manual brightness. The script will switch the screen brightness up immediately between 0 and 100. Optional: use a brightness (nits) meter to measure the screen brightness Test Procedure 1. Make sure the screen is displaying as much as possible (one option: open notepad and maximize it on the screen) 2. Start the ReactivityScript.ps1 script and observe the screen behavior. The screen should transition as quickly as possible, without any delays in brightness.
integrating-ambient-light-sensors-with-windows-10.docx