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Asenstam
What's DOS?
Posts: 2
Registered: ‎03-25-2019
Location: SE
Views: 143
Message 1 of 4

Dual screen resolution issue T580

I have a T580 with intel UHD 620 driver and 40AJ docking station. To that I have 2 screens, Samsung LU28E85KRS.

 

I just want to use the 2 external screens with 3840x2160 resolution, but i can only get that och one screen, the second one just get 1920x1080.

I´ve updated softeware in docking station, intel driver but no differens.

 

As far as I can se in the specs, both dock and computer should be able to put out that resolution on both screens.

I´ve tried both Displayport and HDMI on the second screen.

 

My old W540 had no problem with that resolution.

 

Please help

Regard

Fredrik

aUserHasNoName
802.11n
Posts: 171
Registered: ‎06-26-2016
Location: DE
Views: 133
Message 2 of 4

Re: Dual screen resolution issue T580

 

take a look at this  supported video output options for the 40AJ.  You should be able to use both displays at 4k@30Hz.

I guess if you configure one display to 4k@60Hz then FullHD is the only option available for the 2nd display.

 

 

Asenstam
What's DOS?
Posts: 2
Registered: ‎03-25-2019
Location: SE
Views: 99
Message 3 of 4

Re: Dual screen resolution issue T580

Thanks

 

That should be the problem.

Then I should get the thunderbolt 3 (40AN)docking station instead.

 

Regards

Fredrik

aUserHasNoName
802.11n
Posts: 171
Registered: ‎06-26-2016
Location: DE
Views: 87
Message 4 of 4

Re: Dual screen resolution issue T580

 


@Asenstam wrote:

Then I should get the thunderbolt 3 (40AN)docking station instead.

I'm not so sure about this. AFAIK it's a combination of system + dock and the T580 just isn't able to support two 4k displays at 60Hz.

Take a look at the possible output resolutions for 40AN docks (Thinkpad Thunderbolt 3 Gen 2).

Two displays 4K@60Hz are only supported by X1 Carbon and X1 Yoga systems. Other systems get only 4K@30Hz like the pro and ultra docks.

 

ignore the Thundebolt Workstation docks, these are for the P* series (former W*).

 

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