Dell 858-BBBE, E2014T manual Touchscreen Problems, 42  Troubleshooting

Touchscreen Problems

Specific	What You	Possible Solutions
Symptoms	Experience
		• Use the Dell provided USB cable to connect
		your computer.
		• Make sure the power cable has a ground pin.
		• Unplug and replug the power cable from the
		power adapter to allow auto‑recalibration of
		the touch module.
		• Make sure computer support USB 2.0 or later.
		• If the display cannot be detected by the
		computer, power off/on the monitor or
		unplug and replug the USB cable.
		• Please do not cover the surface or
		surroundings of the screen with your hands
		or any other objects every time the monitor
		is turned on;and please wait until the USB
		driver installation at the bottom-right corner
	Touch function	of the screen is completed after the monitor
Touch report		is turned on before performing any touch
	miss alignment	screen operations.
error	or no touch	• Please avoid covering the beam with other
	function	objects (such as sleeves) besides performing
		touch screen operations with your finger
		during operation, as doing so may affect the
		transmitting and receiving by the sensor lens.
		• Wipe softly to clean the dust on the six sensor
		lens with soft and clean cloth when touch
		function miss alignment or no touch function.

	Cannot wake	1.	Access Device Manager, expand HID
Touch screen	up monitor
			Interface Device under Human Device.
non-responsive	and computer	2.
			Right click HID- compliant device, click
in power-save	by using touch
			Properties and select the check-box to allow
mode	in power-save
			the device to wake the computer.
	mode
	Cursor does	1.	Open Control Panel, open Hardware and
Windows 7 and	not accurately
			Sound, and then open Tablet PC Settings.
Windows 8 /	follow your	2.
			Select Calibration.
Windows 8.1	finger when
		3. Follow the instructions to recalibrate your
Calibration	you touch the
			screen
	screen

NOTE: When the monitor is in Sleep mode, move the mouse, press any key on the keyboard, or double-tap firmly on the screen to wake up the monitor.

42        Troubleshooting