Thinkpads Forum

I have a T430s and an usb 3.0 dual DP dock. I now have 4 identical Lenovo 1920x1080 DP monitors. I'm currently driving 2 DP monitors off the usb3 dock both using DP. I am wondering if I get two of the lenovo DP -> dual DP adapters, will I be able to drive 4 monitors. From what I understand those adapters make the system think a pair is a single display. I think I have the integrated HD4000 hardware.

Natively I believe the ThinkPad T430 can handle 3 displays max but it requires the NVS 5400 Graphics card and if hooked up correct... The t430s requires the docking station with 2 display port for 3 monitors.... The intel only T430 only allows 2 extended monitors regardless of the dock or side of machine.... The t440p/s only allows 3 monitors only if hooked up to correct ports at same time.... The W540 and newer should handle 6 extended monitors with dock and P50 should be able to handle 5 with dock I beleve

I gave options for you if you absolutely need to have more than 3 monitors but this is how Lenovo has it configured

It's a waste of power imo if two displays are mirrored but there are times when mirroring displays is useful but I haven't found a use for mirror displays

discord wrote: ↑

Sat Oct 14, 2017 1:04 am

I have a T430s and an usb 3.0 dual DP dock. I now have 4 identical Lenovo 1920x1080 DP monitors. I'm currently driving 2 DP monitors off the usb3 dock both using DP. I am wondering if I get two of the lenovo DP -> dual DP adapters, will I be able to drive 4 monitors. From what I understand those adapters make the system think a pair is a single display. I think I have the integrated HD4000 hardware.

Your best solution is a external graphics card solution. That is the best way because the graphics card CAN easily handle that many displays. The HD4000 pushing 4 displays is pretty much impossible. Try and cram 4 people into a 2 seater car that can maybe fit three.

It should work. 2 displays handled by the HD graphics, 2 displays handled by the USB 3.0 graphics. The USB dock is its own video device, the Intel graphics is not involved.

The Lenovo USB 3.0 to DVI/VGA Monitor Adapter(0B47072) might be worth a look. Supposedly it supports up to six monitors if you've got enough USB 3.0 ports.

Yea, but the problem is that those displays are run off the CPU and if you don't have a sufficiently powerful CPU or are doing tasks that really CPU intensive, you will start having problems, especially over that many displays.