User's Manual

64 | Troubleshooting
Universal Serial Bus (USB) Specific Problems
The picture
does not fill the
entire screen
The picture
cannot fill the
height or width
of the screen
• Due to different video formats (aspect ratio) of DVDs, the
monitor may display in full screen.
• Run the built-in diagnostics.
Specific
Symptoms
What You
Experience
Possible Solutions
USB interface is
not working
USB peripherals
are not working
• Check that your monitor is turned On.
• Reconnect the upstream cable to your computer.
• Reconnect the USB peripherals (downstream connector).
• Switch Off and then turn On the monitor again.
• Reboot the computer.
• Some USB devices like external portable HDD require higher
electric current; connect the device directly to the
computer system.
High Speed
USB 3.0
interface is
slow
High Speed USB
3.0 peripherals
working slowly or
not working at all
• Check that your computer is USB 3.0-capable.
• Some computers have USB 3.0, USB 2.0, and USB 1.1 ports.
Ensure that the correct USB port is used.
• Reconnect the upstream cable to your computer.
• Reconnect the USB peripherals (downstream connector).
• Reboot the computer.
Wireless USB
peripherals
stop working
when a USB 3.0
device is
plugged in
Wireless USB
peripherals
responding
slowly or only
working as the
distance between
itself and its
receiver
decreases
• Increase the distance between the USB 3.0 peripherals and
the wireless USB receiver.
• Position your wireless USB receiver as close as possible to
the wireless USB peripherals.
• Use a USB-extender cable to position the wireless USB
receiver as far away as possible from the USB 3.0 port.