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  • Registered: ‎06-08-2018
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Lenovo ThinkPad T440p mini displayPort to hdmi not working, flickering laptop screen

2018-06-08, 18:47 PM

Lenovo ThinkPad T440p mini displayPort to hdmi cable not working, flickering laptop screen

lenovo ThinkPad T440p mini displayPort ==> HDMI external monitor dell P2815Q


when connected getting a blank black screen on external monitor, seems to flicker but no picture is shown, my laptop screen also flickers between choosing laptop or external monitor as main display. 


ive had no luck finding a fix, i have tried the cable with other laptops, ie old macbook pro connects with no probs, 

the lenovo displays when connected to a Samsung tv with hdmi, but no luck with the dell monitor, ive searched online for a few days with no luck on fixes, 


All the drivers have been updated via lenovo online, 

in display settings, ive tried going through most display settings but nothing seems to work, 


all other devices work with the dell monitor, via direct hdmi, ive tested many other laptops they all work with the dell screen, the issue seems to be with the lenovo thinkpad displayPort?


Please help





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