# Help Setting Up Dual Monitors w/Work Laptop **URL:** \ **Category:** In My Humble Opinion\ **Tags:** computer-hardware\ **Created:** [December 11, 2025, 9:38pm UTC](https://boards.straightdope.com/t/help-setting-up-dual-monitors-w-work-laptop/1025623 "2025-12-11T21:38:22Z")\ **Posts on this page:** 1\ **Showing post:** 29
**Author:** ![Reply](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/reply/32/15952_2.png) [@Reply](https://boards.straightdope.com/u/Reply)\ **Post date:** [December 12, 2025, 4:22pm UTC](https://boards.straightdope.com/t/help-setting-up-dual-monitors-w-work-laptop/1025623/29 "2025-12-12T16:22:24Z")
Sorry for the late reply. Had fam visiting last night. > [@Spice\_Weasel](#): > > KVM Switch 3 Monitors 2 Computers [Amazon.com: KVM Switch 3 Monitors 2 Computers 4K@120Hz Displayport and 4K@60Hz HDMI USB C KVM Switch Docking Station Shared Dual or Triple Monitors for Thunderbolt 3 Laptop and Desktop Support 100W PD Charging : Electronics](https://a.co/d/6OnZV09) > > I noticed it doesn’t list my specific Dell model as compatible, but if it’s Thunderbolt 3, shouldn’t it work? Can you just double-check real quick to make sure your laptop actually has Thunderbolt, please? It should look like this, with the little lightning logo: [![](https://fightingignorance.org/4e13dffb-d152-4731-a8e5-7ab6460505ac-ka0do0000001peyiaa-en-us-5-jpeg-jpeg-image-600-268-pixels-december-12-08-21-30-am-2x.jpg) ](https://fightingignorance.org/4e13dffb-d152-4731-a8e5-7ab6460505ac-ka0do0000001peyiaa-en-us-5-jpeg-jpeg-image-600-268-pixels-december-12-08-21-30-am-2x.jpg) If so, I _believe_ this KVM will work. It’s worth a shot, IMHO. You would: - Connect laptop via a Thunderbolt 3 cable (if you want to be safe, try to buy one that’s actually a Thunderbolt 3+ cable (with the logo on the cable itself), as opposed to plain USB-C… _some_ USB-C cables will work, but genuine Thunderbolt cables help eliminate the guessing game) - Connect desktop via the USB port and two separate DisplayPort cables (hopefully your desktop PC has two? I’m not sure if this setup will allow daisy-chaining from one DP cable). You shouldn’t need to plug in HDMI anywhere. - Connect switch to both monitors via a DisplayPort cable each - You shouldn’t need HDMI anywhere, just the switch, a Thunderbolt 3 cable, 2x DisplayPort male-to-male cables, and a USB 3.2 male-to-male cable. I am not 100% certain of this setup, but I think it’s worth a try. Maybe @What_Exit can take a look too, or @echoreply or @SenorBeef? I’ll also page the nerds over at [PC Gaming general discussion (Gaming PCs, game sales, news, etc...)](https://boards.straightdope.com/t/pc-gaming-general-discussion-gaming-pcs-game-sales-news-etc/952885/) to see if they might have ideas. > [@Spice\_Weasel](#): > > Could I use an HDMI splitter and just do everything through HDMI? I think those only mirror the one outgoing display, so they won’t be helpful unless you really want to see the same emails on both monitors 🙂 > [@Spice\_Weasel](#): > > I may just start going into the office five days a week. 😟 Oh geeze, certainly we can figure SOMETHING less of a hassle than that! But on that note, maybe take a pic and note down what kind of dock/hub they have at the office the next time you’re in? It would help confirm the kind of setup that does work with your laptop (though you’d still have to figure out the KVM part for your desktop, and also consider the slightly higher bandwidth of your new monitors). > [@puzzlegal](#): > > But if you don’t mind plugging into a couple of things instead of just one tidy port, you can plug in your keyboard to a USB C port on your laptop. Yeah, this is another option too. You can just use a keyboard + mouse switch and manually move the monitor plugs… but you would STILL need a solution to go from your laptop to the two monitors (either Thunderbolt → dock → DisplayPort → monitors, or Thunderbolt to DisplayPort → monitor and HDMI → monitor). _As far as I know_ — I’m not positive on this — you can’t go from one HDMI port to two separate displays (unless you want to just mirror them). Thunderbolt/DisplayPort can do that via a dock/hub or daisy-chaining, but I don’t _think_ HDMI can. I think the KVM you listed is worth a shot, but let’s also see if anyone more knowledgeable chimes in… --- _[View the full topic](https://boards.straightdope.com/t/help-setting-up-dual-monitors-w-work-laptop/1025623)._