4k monitor running from ASUS N550JV won't run 4k

[Dom Moass]

Hi all.

I tried my best to find an answer before posting but nothing doing so here I am.

My situation is this:

• 
  I use an ASUS N550JV laptop with a GTX 750m GPU, which can support 4k.
  I just bought a Samsung U28D590D 4k monitor, and connected it to my laptop via mini-displayport to displayport cable.
  The U28D590D works when duplicating my laptop display at 1080p, but when I set it to be the main monitor at 4k and only display itself, as soon as I press 'ok' the screen goes black.

I have tried:

• 
  Ensuring my drivers are up to date - they are
  Ensuring my DP connection is DP 1.2 - it is
  Putting my laptop into performance mode
  Plugging in my laptop to power
  Telling my laptop to process all graphics from the 750m

Any ideas?

I'm using a European plug to uk adapter in a cable extension socket - would that make any difference? The monitor runs in 1080p fine though.
Thanks everyone

 

[laviniuc]

try with an hdmi cable instead, maybe the mini-dp - dp adapter isn't working as it should...

 

[Dom Moass]

try with an hdmi cable instead, maybe the mini-dp - dp adapter isn't working as it should...

good thinking - hadn't occurred t the dp cable wouldn't work as it is brand new. I guess I'll try another as I need 60Hz. Thanks

 

[laviniuc]

you need a version 1.2 mini dp cable, could be that

 

[nvmnghia]

Hi all.

I tried my best to find an answer before posting but nothing doing so here I am.

My situation is this:

• 
  I use an ASUS N550JV laptop with a GTX 750m GPU, which can support 4k.
  I just bought a Samsung U28D590D 4k monitor, and connected it to my laptop via mini-displayport to displayport cable.
  The U28D590D works when duplicating my laptop display at 1080p, but when I set it to be the main monitor at 4k and only display itself, as soon as I press 'ok' the screen goes black.

I have tried:

• 
  Ensuring my drivers are up to date - they are
  Ensuring my DP connection is DP 1.2 - it is
  Putting my laptop into performance mode
  Plugging in my laptop to power
  Telling my laptop to process all graphics from the 750m

Any ideas?

I'm using a European plug to uk adapter in a cable extension socket - would that make any difference? The monitor runs in 1080p fine though.
Thanks everyone

So did it work at 4K60Hz?
Somebody told me that the mDP in this model is 1.1a. How do you check the mDP version? Thanks !