No video or wonky picture on your second or third monitor? Here’s our troubleshooting and repair guide for some of the most common multi-screen issues.

I really wanted to like the Acer PD163Q Dual Portable Monitor.The idea of being able to carry around two screens with me and ...

Connection problems How we test portable monitors The Acer PD163Q is an interesting portable setup: It combines two displays into a single unit, theoretically making it as convenient to bring two ...

But ultrawide and dual-monitor setups are not the same. Each has its strengths and weaknesses. Here’s how to decide whether an ultrawide monitor or dual monitors is right for you.

Acer's PD3 Dual-Screen Portable Monitor is a solid plug-and-play display to take with you between work and home - if you can look past its hefty weight and need for a dedicated power source.

Dell's gaming arm, Alienware, has released a dual-resolution/refresh rate gaming monitor that supports 4K at 180Hz and 1080p (FHD) at 360Hz.

That's plenty. Then, BenQ PD2730S scored a whopping 4.5 in my review. It wasn't the perfect monitor for individual use, but I think it is the best overall dual monitor for several reasons.

Although these factors make Apple’s monitor less ideal in a dual-monitor setup, the Studio Display is still the best splurge for Apple users. Best office: Dell UltraSharp U2723QE Dell ...