42 Troubleshooting
Touchscreen Problems
Specific
Symptoms
What You
Experience Possible Solutions
Touch report
error
Touch function
miss alignment
or no touch
function
•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 o/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
of the screen is completed after the monitor
is turned on before performing any touch
screen operations.
•Please avoid covering the beam with other
objects (such as sleeves) besides performing
touch screen operations with your finger
during operation, as doing so may aect 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.
Touch screen
non-responsive
in power-save
mode
Cannot wake
up monitor
and computer
by using touch
in power-save
mode
1. Access Device Manager, expand HID
Interface Device under Human Device.
2. Right click HID- compliant device, click
Properties and select the check-box to allow
the device to wake the computer.
Windows 7 and
Windows 8 /
Windows 8.1
Calibration
Cursor does
not accurately
follow your
finger when
you touch the
screen
1. Open Control Panel, openHardware and
Sound, and then open Tablet PC Settings.
2. Select Calibration.
3. Follow the instructions to recalibrate your
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.