02-22-2018 04:43 AM
I'm way late to the party - but I'm stumped with my work terminal.
I'm using a Lenovo M92 (M2121-D5U) and I've been trying for days to enable a third monitor on my tiny machine.
I have 3 video ports: VGA, DVI (and an exchangable third - currently DVI). I have all three monitors plugged in, and using my Intel HD Graphics Options, I can switch between 1/2 - 2/3 - 1/3- etc, etc, but I cannot actually get the display to extend across all three monitors.
I've gone into my BIOS and the "Multi-Monitor Support" option in Video doesn't exist, even when I change from AUTO to the Internal Graphics.
Does anyone have any thoughts? - I've gone through the Lenovo Updater and even pulled down the BIOS Flash from Lenovo's website, and as far as I can tell I'm up to date on everything.
02-22-2018 05:39 AM
What graphics card do you have installed? If need be, you can use Device Manager to determine that.
02-22-2018 06:04 AM
The method described here involves the use of a graphics card in conjunction with the built-in Intel graphics. From the Lenovo doc linked to at the beginning of the thread:
"Unable to configure more than two displays while three or more are attached to the system using a PCI-Express video adapter graphics card and the Intel HD Graphics."
05-25-2018 01:49 PM
Just bought a M910 Tower with the integrated video card (i.e. 2 DP and NO HDMI). It was delivered yesterday with a speaker that was never secured and flops around. I have a DP to HDMI adapter (https://smile.amazon.com/gp/product/B06XC4Z2M4/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1) that only works on the top DP port but not the 2nd one. Tech Support was useless.
Tried using new monitor with mini-DP to DP and worked in both ports; tried the HDMI and it still only worked in the top port.
also, Lenovo told me that if I added a separate graphic card, it would simply disable the integrated card. Am i missing something?
sorry for the 2 questions late in this thread, but Lenovo tech support and customer service (what an oxymoron) have been of no help. As a side note, this machine is getting returned, but the same isue existed with a 910SFF that I had back in October that was returned due to the DP and other issues.
05-25-2018 02:19 PM
I've been told that the M910 internal graphics will work at the same time as a graphics card (GT 720 in this case) with the BIOS settings set per these instructions.
05-25-2018 05:34 PM
thanks for the quick reply on the graphics card. Any insight as to why the display ports aren't operating correctly?
It's difficult to troubleshoot low-cost DP adapters, because you don't know if the shortcuts in the conversion to reduce cost are the cause, or it if something related to the DP port itself, you do say that mini-DP to DP works. See the section I have in the "Read First .." pinned thread above.
05-27-2018 05:50 AM
Bigg Al, went into the settings as described and changed the setting for the IGC from Auto. Rebooted the system and guess what? the lower Display Port still won't recognize that there is a monitor plugged in. When plugging into the top one, you hear the Windows Dings that a device was plugged in/out. Don't get it when plugging into the lower one.
the bizarre thing is that if I use a newer monitor with mini-DP to DP plugged into either port, it works.
and tech support? nearly as useless as their customer support.
any other thoughts?