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Touchscreen Problems
Specific
Symptoms
Touch report
error
Touchscreen
non-responsive in
standby mode
Universal Serial Bus (USB) Specific Problems
Specific
Symptoms
USB interface is
not working
SuperSpeed USB
3.0 interface is
slow.
What You
Possible Solutions
Experience
• Use the Dell provided USB cable to connect your
• Make sure the power cable has a ground pin.
• Unplug and replug the power cable to allow
Touch function
• Make sure computer supports USB 2.0 or later.
miss alignment or
• Make sure connect both input source cable and USB
no touch function
• If the display cannot be detected by the computer,
• Access Device Manager, expand HID Interface Device
Cannot wake
up display and
• Right click HID- compliant device, click Properties and
computer by
using touch in
standby mode
• Check Display OSD 'Wake on touch' setting is enabled.
What You
Possible Solutions
Experience
USB peripherals
• Check that your display is turned ON.
are not working
• Reconnect the upstream cable to your computer.
• Reconnect the USB peripherals (downstream
• Switch off and then turn on the display again.
• Reboot the computer.
• Some USB devices like external portable HDD require
SuperSpeed USB
• Check that your computer is USB 3.0-capable.
3.0 peripherals
• Some computers have USB 3.0, USB 2.0, and USB 1.1
working slowly or
not working at all
• Reconnect the upstream cable to your computer.
• Reconnect the USB peripherals (downstream
• Reboot the computer.
computer.
initialization of the touch module.
upstream cable with correct pairing. Refer to Input
sources and USB pairing section
power off/on the monitor or unplug and replug the
USB cable.
under Human Device.
select the check-box to allow the device to wake the
computer.
connector).
higher electric current; connect the device directly to
the computer system.
ports. Ensure that the correct USB port is used.
connector).
Troubleshooting
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