Any external monitor I use keeps blinking

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marianna224

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Oct 21, 2018
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I have an Inspiron 17 7779 2-in-1 laptop running Windows 10 Pro with an i7 processor and CPU @ 2.70GHz and all the latest updates (video drivers etc)

Under Device Manger I have two display adapters: a) Intel® HD Graphics 620 and b) NVIDIA GeForce 940MX.

I have tried two different brand new external monitors to use as a second screen (I use the HDMI port for both). I set them both at a refresh rate of 60Hz and have made sure I always have the most updated drivers.

No matter what I do however the external monitor will start blinking. It will turn black for a second and then go back as usual. At times the blinking is so frequent that you cannot see anything.

Tried different HDMI cables (3 to be exact) but no luck.

I also went into the NVIDIA control panel and from the 3D settings I chose the Integrated Graphics as the Preferred Graphics Processor. (only made an exception for WoW to use the NVIDIA processor)

I have spent hours upon hours online trying to find a solution but to no avail. Any help will be more than greatly appreciated.
 
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