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Specific
Symptoms
No Input Signal
when user
controls are
pressed
The picture
does not fill the
entire screen
No image
when using DP
connection to
the PC
Mobile High-Definition Link (MHL) Specific Problems
Specific
Symptoms
MHL interface is
not working
What You
Possible Solutions
Experience
No picture,
• Check the signal source. Ensure the computer
the LED light is
white
• Check whether the signal cable is plugged in
• Reset the computer or video player.
The picture
• Due to different video formats (aspect ratio) of
cannot fill the
height or width
• Run the built-in diagnostics.
of the screen
Black screen
• Verify which DP standard (DP 1.1a or DP 1.2) is
• Some DP 1.1a graphics card cannot support
What You
Possible Solutions
Experience
Cannot see
• Ensure your MHL cable and MHL device are MHL
MHL device
image shown
• Check your MHL device is turned on.
on the monitor
• Check your MHL device is not in standby mode.
• Check physical MHL cable connection is
• Wait for 30 seconds after connecting MHL cable
is not in the power saving mode by moving the
mouse or pressing any key on the keyboard.
properly. Re-plug the signal cable if necessary.
DVDs, the monitor may display in full screen.
your Graphics Card certified to. Download and
install the latest graphics card driver.
DP 1.2 monitors. Go to OSD menu, under Input
Source selection, press and hold DP select
key for 8 sec to change the monitor setting from
DP 1.2 to DP 1.1a.
certified.
corresponding to input source selected on OSD
Menu: HDMI (MHL).
as some MHL devices require longer recovery
time.
Troubleshooting
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