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VISailor
Blue Screen Again
Posts: 4
Registered: ‎06-07-2017
Location: US
Views: 3,913
Message 1 of 5

Need help to get new P51 plus docking station to support 3 external displays.

Almost a week ago I received my new P51 loaded with all available components, as did my last Lenovo W530. The P51 appears to be a great machine. My current problem is that I cannot display 4 screens (notebook plus 3 external displays). Since I have used my W530 with 4 displays for over two years I fully expected to achieve the same with an even more powerful Notebook.

 

The new P51 has two 512 GB SSD drives, the Intel Xeon E3-1505M v6 vPro MB CPU, a NVIDIA Quadro M2200M 4GB graphics card, 32GB(16+16) DDR4 2400 SoDIMM, a notebook display of P51 FHD NT 2D MC CS WLWW and the latest Windows 10, 64 bit operating system.

 

Since I received the P51 and its docking station (P/N: 40A50230US) I have connected the three external monitors to the docking station via a HDMI port, a DVI converter to HDMI and a Display Adapter converter to HDMI. The BIOS was updated to the latest and the 256 Mb default memory for the displays was increased to the 512 MG setting. I have also moved the displays and cables around to confirm that cables are fine and only two external displays will be seen at any time.

 

In speaking with Lenovo hardware support, one individual said I needed to subscribe to software support to get the BIOS changed. Later, a second person said that I needed to play around with the BIOS settings and it should work. I have also rebooted the system a few times. Unfortunately I still cannot view 4 displays. 

 

As an IT, Telecom and Cybersecurity SME and Project Manager I realize that since my system is a newly released product (April 29, 2017) and problems are to be expected. I am reaching out to the Lenovo community hoping that some of you have also upgraded to the latest, greatest and most powerful Think Pad, and perhaps some of you may have experienced the same problem. I doubt that the new P51 would support less displays than my 5 year old W530.

 

Any help or advice from the community would be greatly appreciated. 

gundul
SCSI Port
Posts: 31
Registered: ‎03-26-2016
Location: ID
Views: 3,845
Message 2 of 5

Re: Need help to get new P51 plus docking station to support 3 external displays.

Hi, I am using P50 currently and able to use 3 external displays (4 with the built-in FHD display), without docking. Two are Dell U2515 (2560x1440) monitors connected using mini-DP in cascade/chain connection, and the third monitor is an LG 27UD68-W (3840x2160) via HDMI (running on 30Hz mode). I could choose to use another U2515 so I can get a 60Hz 2560x1440, but I need a 4K. I can't tell you how is it going to be on 40A50230US docking since I don't have one, but honestly I'd expect the docking should provide at least the same display capability as without docking. I'll have a P51 in the next three weeks so I may be able to later reconfirm my first paragraph above using P51.
Using: P51/i7/64GB/FHD, X230/i5/16GB/WXGA, M58p/Core2Duo/2GB, Q190/i3/4GB, Q190/Celeron/4GB. Gone: S110/Celeron/2GB/WSVGA, W510/i7/16GB/FHD, W520/i7/32GB/FHD, W530/i7/32GB/FHD, P50/i7/64GB/FHD, E330/i3/8GB/WXGA, E440/i5/8GB/WXGA, E440/i5/16GB/WXGA, E460/i5/16GB/FHD, Yoga2 10/Atom/2GB/WUXGA.
VISailor
Blue Screen Again
Posts: 4
Registered: ‎06-07-2017
Location: US
Views: 3,841
Message 3 of 5

Re: Need help to get new P51 plus docking station to support 3 external displays.

That is great. I will look forward to your reply.

 

Perhaps it is relevant that you know more about the displays? These are: 2 (two) Planar PX 2710MW and one Acer H213H. 

 

Thanks again for your comments and offer to help.

 

A picture of my previous display configuration with my Lenovo W530 is attached. The W530 is no more.

p600
Broadband 3G
Posts: 484
Registered: ‎10-03-2011
Location: CA
Views: 3,821
Message 4 of 5

Re: Need help to get new P51 plus docking station to support 3 external displays.

P50/P70, and I'd imagine P51 as well, have no problems supporting 4 low-resolution displays (counting the laptop screen) .

 

However, you need to be very particular to which ports of the dock you connect the monitors. Please refer to https://support.lenovo.com/ca/en/solutions/pd029622 ( while it's for P50/P70, it's unlikely to be different for P51).

 

To connect 3 screens, you need to use VGA connector on the dock for one of the monitors, or connect to the port on the laptop itself.

VISailor
Blue Screen Again
Posts: 4
Registered: ‎06-07-2017
Location: US
Views: 3,746
Message 5 of 5

Re: Need help to get new P51 plus docking station to support 3 external displays.

Problem solved. When you connect the displays to the docking station:

1.  You need to use the old VGA port.

2.  You can use the Display Port 1, but not Display Port 2.

3.  You can use the HDMI port

4.  You can use the DVI-I port. 

 

The answer was found on the top of page 44 in the in the ThinkPad P51 User Guide.

The problem had nothing to do with the BIOS or asking for Software support to help.

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