Have you ever plugged a device into your monitor’s USB ports only to find that it doesn’t work?
This frustrating issue can have several causes, from software problems to hardware failures.
In this article, we’ll walk you through some troubleshooting steps to get your monitor’s USB ports working again.
To fix non-working USB ports on a monitor, try unplugging and reconnecting the monitor, then update or reinstall USB-related drivers on your computer. If the issue persists, test with another device to determine if the port itself is faulty.
What Are Monitor USB Ports For?
Many modern monitors have built-in USB ports, usually on the screen’s side or back.
These ports allow you to conveniently connect peripherals like keyboards, mice, and flash drives directly to your monitor.
This eliminates the need for cables stretching from your peripherals to the back of your computer. It also reduces cable clutter on your desk.
The ports on your monitor function similarly to the USB ports on your computer.
However, the monitor ports connect to your computer via a USB cable.
Common Reasons Monitor USB Ports Stop Working
There are a few common culprits when monitor USB ports stop functioning correctly:
- Loose USB cable: The USB cable that connects your monitor to your PC may be open or disconnected. This breaks the vital data flow.
- Outdated drivers: Your monitor, USB ports, or other hardware may have outdated, buggy, or broken drivers. Keeping your drivers updated can prevent issues.
- Software conflicts: Some programs or settings may interfere with your USB ports. Conflicts between monitor drivers, USB drivers, security software, and so on can disrupt USB functionality.
- Hardware failure: In rare cases, the USB ports, the USB hub/controller, or the monitor’s internal USB components may fail or become damaged.
- Power supply issues: If your monitor or PC isn’t getting consistent, clean power, your USB ports can malfunction.
How to Troubleshoot and Fix Monitor USB Port Problems
If your monitor’s USB ports aren’t recognizing devices, here are some steps to resolve the issue:
1. Check physical connections
Ensure the USB cable connecting your monitor to your PC is firmly plugged in at both ends.
Try connecting it to another USB port on your computer if possible.
Also, check that any devices you’re trying to use are plugged snugly into the monitor’s USB downstream ports.
2. Toggle monitor off and on
Use the monitor’s power button to cycle it off and back on.
This simple step reinitializes the USB hub controller and can clear up software conflicts that affect the ports.
3. Update your drivers
Update your monitor, USB controller, chipset, and other essential hardware drivers to eliminate driver-related problems.
You can manually download drivers from device manufacturers’ websites or use a driver update utility.
4. Change the USB selective suspend setting
If your monitor’s USB ports stop working when your computer goes to power saving mode or restarts, go to Power Options in Windows and disable “USB selective suspend.”
This prevents Windows from cutting power to the ports during standby.
5. Check for USB conflicts
Uninstall any unnecessary USB devices, hub extenders, or USB-related utilities.
These can sometimes clash with a monitor’s built-in USB hub. Also, check for IRQ conflicts that may disrupt communication.
6. Reset and update monitor firmware
Many monitors have the option to reset the device to factory default settings.
Try this to refresh its USB functionality.
Also, go to your brand manufacturer’s website to check for firmware updates.
7. Replace the monitor’s USB cable
Replacing the monitor’s USB A-B cable with a new high-quality cable can resolve physical connection issues if you’ve tried all other troubleshooting.
8. Replace the monitor:
As a last resort, internal hardware failure may necessitate replacing the monitor entirely if it’s still under warranty.
USB Ports Working but Not Recognizing Devices?
If your monitor’s USB ports have power but aren’t recognizing specific devices like your mouse or flash drive, here are some things to check:
- Try connecting the device to another computer to see if the issue is with the device itself.
- Reinstall drivers for the malfunctioning device or update its firmware.
- Check if the device is listed under Universal Serial Bus Controllers in Device Manager. If not, uninstall and then reinstall its drivers.
- Ensure USB data transfer is enabled on that USB port within your monitor’s settings menu.
- The device may be trying to draw too much power from the USB port. Connect it to a powered USB hub plugged into the monitor.
Preventing Monitor USB Port Problems
To avoid headaches with your monitor’s USB ports in the future:
- Position cables to avoid tight bends and accidental disconnections.
- Use high-quality USB cables that provide stable data flow.
- Connect devices directly to your monitor unless you specifically need a hub. More connections mean more potential points of failure.
- Keep your monitor, USB and other hardware drivers updated.
- Only install essential USB devices and be cautious installing USB utilities.
- Don’t overload your monitor’s USB hub by connecting too many power-hungry devices.
Here are answers to some frequently asked questions about troubleshooting monitor USB ports:
Ques 1: Why do my monitor’s USB ports work only sometimes?
Ans: This is likely due to a loose cable connection, software/driver conflict, or IRQ resource clash.
Try reseating cables, updating drivers, and eliminating conflicts.
Ques 2: Why do my monitor’s USB ports stop working after restarting?
Ans: Windows’s USB selective suspend setting can cut power to USB ports during restart.
Disable this feature to keep your USB powered through reboots.
Ques 3: Why does one USB port on my monitor work but not the others?
Ans: Check your monitor’s settings menu for an option to enable/disable individual USB ports.
Also, try connecting devices to each port to isolate the problem.
Ques 4: Why won’t my monitor’s USB ports detect my mouse/keyboard?
Ans: Ensure the USB data transfer option is enabled for that port in your monitor’s settings.
Also, try manually reinstalling the device drivers.
Ques 5: How do I update the firmware on my monitor?
Ans: Go to your monitor manufacturer’s support website and look for firmware update instructions for your model.
The process often involves downloading firmware files and using a USB stick.
Getting your monitor’s USB ports up and running again takes some troubleshooting, but carefully going through these steps should resolve the issue.
Reach out for professional assistance if needed.
With the proper fixes, your monitor’s USB hub will work smoothly again.