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Fix This: Windows 8.1 Doesn’t Detect Secondary Monitors

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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A number of users have complained that after they’ve updated toWindows 8.1, their multi-monitor setup was no longer functioning properly. In some cases, only one monitor was detected and for others, only some of themonitorsworked (in cases where users had 3 or more monitors).I won’t ramble on how awesome multi-monitor setups are, but I will say this: after you get used to it, you won’t want to go back to a singlemonitorever again. Most of the issues with Windows 8 multi-monitor setups were experienced when the update first came out, but even now there are users complaining aboutWindows 8.1not detecting secondarymonitors. In this guide, we’ll show you how to deal with these issues and fix your multi-monitor system.

Solve problems with Windows 8.1 not detecting secondary monitors

More often then not, issues like this one are caused by out-dated or faulty drivers. Of course, there can also be a hardware issue lurking somewhere, and these are usually harder (and more expensive) to fix. Having a multi-monitor array myself on a system which runsWindows 8.1, I have encountered a few issues myself, but luckily, nothing which involved hardware fails (this time at least).

Read Also: VLC Player to Soon Add Chromecast Support for Windows 8

The multiple monitor settings can be found by either pressing the Windows Key + P or by right clicking on your desktop and selecting “Screen Resolution“. From here, you can configure whichmonitorsyou use and how they are arranged. In this window you can see how many monitorsWindows 8.1is recognizing. If you see all of them, then it’s only a matter of switching them on and arranging them accordingly. (Tip: use the “Detect” option to see the order of yourmonitors).

Some possible fixes

In order to determine where the problem originated, we’ll be looking at software fixes and hardware tests which will tell you where the issue resides. Before we download or update anything, let’s get the obvious out of the way and run a few diagnostic tests:

Note:Windows 8.1on some computers have problems sending analog signals via certain VGA cables. Try another cable or if possible, use a digital DVI, HDMI or DisplayPort

If your monitor/s work on different systems and on all their inputs, then the problem can be from the physical ports on your computer or from the drivers which run on yourWindows 8.1device. Before we go about modifying BIOS settings or swapping out hardware components, do a thorough inspection of your operating system:

In the vast majority of cases, your issues should be resolved by now. A new driver and updated operating system is pretty much all you need to run multi-monitor setups on Windows 8. On the other hand, if you’re still experiencing problems and Windows 8 still doesn’t detect your secondarymonitors, try the following:

Read Also:LG Dual Monitors Don’t Work in Windows 8.1 for Some Users

More about the topics:windows fixes

Milan Stanojevic

Windows Toubleshooting Expert

Milan has been enthusiastic about technology ever since his childhood days, and this led him to take interest in all PC-related technologies. He’s a PC enthusiast and he spends most of his time learning about computers and technology.

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s one of the Troubleshooting experts in our worldwide team, specializing in Windows errors & software issues.

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Milan Stanojevic

Windows Toubleshooting Expert

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s specialized in Windows errors & software issues.