12-27-2018 08:53 PM
Hi. I'm hoping I can get this resolved on this forum.
I just got my system and am trying to connect my 3 external monitors. My setup is as follows:
I also tried this setup:
Also on a related note, the Nvidia Quadro P500 is sitting idle as the Intel UHD 620 is doing all the work. How can I control this?
Thanks for any suggestions.
12-28-2018 01:34 AM
As stayed in PSREF, P52s supports up to three independent displays. Laptop's screen includes in this limit, meaning you can use two external displays at that time. When you close the lid, you can use three external displays. To use more, you'll need some sort of USB adapter to increase such a limit.
Regarding other question, you can't disable Intel GPU - it's always active and it's always controls screen output. NVIDIA's dGPU can be configured to be used in selected applications, making them to work with higher performance.
P52 and P72 for sure have an ability to disable Intel iGPU, giving the control of screen output to dGPU. Probably P1 and/or X1 Extreme have the same feature too.
12-28-2018 01:07 PM
Thanks for your input. I see the PSREF you referenced. I don't think the laptop screen is included as an independent monitor. I just chatted with sales and they confirmed that fact. I should be able to use the laptop and 3 external monitors. I had a T420 and it's dock that ran this configuration no problem. Anyway I'm still on the hunt for a solution.
12-28-2018 03:21 PM
Thanks for your input. I see the PSREF you referenced. I don't think the laptop screen is included as an independent monitor. I just chatted with sales and they confirmed that fact. I should be able to use the laptop and 3 external monitors. [...]
Statement from Lenovo's employee. Intel HD can output up to three video signals. Internal screen is taking one signal, leaving two signals for external screens. If you need more, then look for USB video adapters - I have seen on Youtube, that some people connected even six screens using them.
According to Docking Station video guide, it might be possible to use Ultra Docking Station to overcome this limit. Thunderbolt docking stations require a P52/P72 to utilize four displays (internal + 3x external).