User Guide
 Troubleshooting | 59
Specific 
Symptoms
What You 
Experience
Possible Solutions
No image 
when using DP 
connection to 
the PC
Black screen •Verify which DP standard (DP 1.1a or DP 1.2) is 
your Graphics Card certified to. Download and 
install the latest graphics card driver.
•Some DP 1.1a graphics card cannot support 
 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. 
Mobile High-Definition Link (MHL) Specific Problems
Specific 
Symptoms
What You 
Experience
Possible Solutions
MHL interface is 
not working
Cannot see 
MHL device 
image shown 
on the monitor
•Ensure your MHL cable and MHL device are MHL 
certified.
•Check your MHL device is turned on. 
•Check your MHL device is not in standby mode.
•Check physical MHL cable connection is 
corresponding to input source selected on OSD 
Menu: HDMI (MHL).
•Wait for 30 seconds after connecting MHL cable 
as some MHL devices require longer recovery 
time. 










