Touch Screen May Have Intermittent Issues or Stop Working Due to Power Management Settings

Touch Screen May Have Intermittent Issues or Stop Working Due to Power Management Settings



Touch Screen Inoperative After the LCD Display is Turned off by Power Management

You may encounter a situation where the touch input of the touchscreen display will not work after the touchscreen is turned off by power management.

EXAMPLE: If you set the screen to DIM after 2 minutes and TURN-OFF after 3 minutes, Moving the mouse, hitting any key turns the display back on, but the touch input no longer works.

Note: If your system doesn't have a Human Interface Device (HID) listing in Device Manager, then this article does not apply to your system.

Adjust HID USB Power Management Setting in Device Manager

The solution is to adjust the power setting in device manager under Human interface Devices (HID) devices (Figure 1).

Figure 1

To resolve this issue complete the following steps:

  1. Open Device Manager(Windows 7 click start, type device manager, then click device manager on the menu, Windows 8/8.1 on the Start screen, type device, then click the device manager icon.)
  2. Click the arrow next to Human interface Devices, You will see 2 items listed as a USB devices.
    • Right click each USB Device and click properties on the drop down menu.
      • In the USB device properties window, click the power management tab,
        • Under the power management tab there is a checkbox next to "Allow the computer to turn this device off to save power"
          • Uncheck the check box then click OK. then repeat these steps for the second USB Device.
            • Reboot the system.

The touch screen should retain touch functionality after it is turned off, and now can use either the mouse, keyboard or touch screen to turn the LCD back on (Figure 2).

Figure 2

If you have further questions about this solution, please contact Dell Technical Support.





Article ID: SLN290492

Last Date Modified: 02/27/2019 05:27 PM


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