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10 Posts

03-28-2017

US

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P50 will NOT support Dual 4k monitors @ 60hz

2017-03-28, 17:35 PM

As far as I can tell, the Lenovo no longer has a solution for running dual 4k monitors using the P50 Thinkpad.

 

When you use the docking station, you are limited to the bandwidth of a single DisplayPort 1.2.  This is not enough bandwidth for 2 x 4k monitors @ 60Hz.

 

There was a solution using the Thunderbolt 3 interface with an external adapter, which is what I bought.  Lenovo used to have a Thunderbolt 3 Firmware NVM upgrade to permit inter-operation with the external adapter, but that link has been removed, and there is no way now to upgrade the Thunderbolt 3 firmware.

 

I know of no other solution which will enable me to run dual 4k monitors with the P50.

 

I bought a P50, two 4k monitors, and the Plugable Thunderbolt-to-Dual-DisplayPort Adapter.  But without firmware upgrade, the P50 will not recognize the adapter.  So my very expensive purshase, in terms of both time and money, will not work.

 

Can someone please re-post the Thunderbolt 3 Firmware Upgrade link?

 

Or should I just return all my equipment?

 

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10 Posts

03-28-2017

US

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Re: P50 will NOT support Dual 4k monitors @ 60hz

2017-03-28, 19:27 PM

I have some further information.

It seems that there are two Thunderbolt 3 adapters:

 

1) Plugable Thunderbolt 3 Dual DisplayPort Output Adapter for Thunderbolt 3

2) StarTeck.com Thunderbolt 3 to Dual DisplayPort Adapter

 

It seems that BOTH of these adapters require firmware upgrades to the Intel controller of the P50 montherboard.

 

So, without the firmware upgrade, it seems that neither of these adapters will work.

 

Does anyone have additional information?

 

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10 Posts

03-28-2017

US

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Re: P50 will NOT support Dual 4k monitors @ 60hz

2017-03-28, 21:27 PM

OK.  Maybe I've found a solution for this.

 

Here are links to the previous version of the Thunderbolt 3 SW and FW upgrades:

 

PREVIOUS VERSION:

Software:

https://download.lenovo.com/pccbbs/mobiles/n1ete06w.exe

https://download.lenovo.com/pccbbs/mobiles/n1ete06w.txt

Firmware:

https://download.lenovo.com/pccbbs/mobiles/n1etf06w.exe

https://download.lenovo.com/pccbbs/mobiles/n1etf06w.txt

 

MORE CURRENT VERSION:

Software:

https://download.lenovo.com/pccbbs/mobiles/n1ete07w.exe

https://download.lenovo.com/pccbbs/mobiles/n1ete07w.txt

Firmware:

https://download.lenovo.com/pccbbs/mobiles/n1etf07w.exe

https://download.lenovo.com/pccbbs/mobiles/n1etf07w.txt

 

I was able to get things working with the second set of files.

 

There are some special instructions, so pay attention to the "txt" files, not just the "exe" files.

 

I sure wish these links were plainly visible somewhere.  There are a couple threads that are not resolved that require these links!

 

Also, Thank you to Josh at Plugable support for finding these links for me!  Lenovo was not much help here.

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15 Posts

09-12-2016

AU

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Re: P50 will NOT support Dual 4k monitors @ 60hz

2017-08-24, 22:31 PM

Hi,

Accroding to these TXT files, both previous version and current version SW in the above links are for Win 10.

Previous version FW is for Win7/8.1/10; Current version FW is for Win 10.

 

My P50 was downgraded to Win7 by Lenovo at an extra cost when it was ordered new, otherwise it would have come with Win10.

 

So I would like to be confirmed if these links work for my P50, which version?

 

Without updating SW and FW, would my P50 be able to drive ONE 32" 4K display ( resolution 3840x2160) ?

 

Thanks in advance.

 

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180 Posts

12-24-2011

AE

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  • Message 5 of 5

Re: P50 will NOT support Dual 4k monitors @ 60hz

2018-11-04, 15:17 PM
The firmware files both list Windows 7 as well as the current rev25 version. Are you unable to update the firware and try again?
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