It can be frustrating when your Samsung monitor starts blinking a blue light instead of displaying properly.
A blinking blue light typically indicates an issue with the monitor or connection to your computer.
Fortunately, you can try several troubleshooting steps to fix a Samsung monitor blinking blue light.
There are a few common causes for a Samsung monitor blinking blue:
- Loose cable connections – If the video cable connecting your monitor to your PC is loose or disconnected, it could cause the blinking blue light problem. Reseating cables may fix it.
- Outdated drivers – Outdated, corrupt, or missing graphics drivers can cause monitor connectivity issues. Update your graphics drivers.
- Monitor power settings – Incorrect monitor power or sleep settings could cause blinking. Check the monitor’s OSD settings.
- Faulty video card – Issues with your graphics card, like old age or damage, might be the culprit. Try your monitor with another PC.
- Monitor hardware failure – If no software fixes help, it’s possible the monitor’s internal hardware has failed, requiring service.
Follow these troubleshooting steps to stop your Samsung monitor from blinking blue:
1. Check Video Cable Connections
Ensure the video cable from your computer to the monitor is properly plugged in at both ends.
Twist the connectors gently to ensure a tight fit. Try swapping the video cable for a different one if possible.
Use a DVI, HDMI, or DisplayPort cable based on your monitor’s available ports.
Loose video cables are one of the most common causes of monitor blinking blue screen issues. Simply reseating the connections can often resolve the problem.
2. Update Graphics Drivers
Outdated graphics drivers can cause connectivity issues resulting in a blinking blue light problem. Update your graphics card drivers to the latest NVIDIA, AMD, or Intel version.
On Windows, search for “Device Manager”, expand the “Display adapters” section, right-click your graphics card, and choose “Update driver”.
Select “Search automatically…” and let Windows find and install the newest driver. Restart your PC after updating.
Updating graphics drivers will ensure maximum compatibility between your PC and monitor.
3. Verify Monitor OSD Settings
Your Samsung monitor’s on-screen display (OSD) menu may have incorrect settings leading to the blinking blue light.
Access your monitor’s OSD menu using the buttons on the front panel.
Navigate to the “System” or “Configuration” section and verify the monitor is not in Power Saving mode.
Disable any Eco power saving features. Also, check that the input source matches the video connection from your PC.
Modifying the monitor OSD settings may resolve software-related issues causing the blinking screen.
4. Test Monitor with Another PC
To confirm whether your monitor or PC causes the issue, connect the Samsung display to another computer if available.
Use the same video cable and port, power both devices and check if the blinking blue light persists on the second PC.
If the monitor operates normally on another system, the problem lies with your original PC’s graphics card or software.
However, if the blinking blue light continues, then your monitor likely has a hardware problem.
5. Reset Monitor to Factory Settings
Restoring your Samsung monitor to factory default settings can clear any problematic customized values causing the blinking issue.
Power off the monitor and press the menu button on the front for 10+ seconds until you see the factory reset screen.
Choose Reset to revert the monitor to default configurations.
After resetting to factory settings, check if the blinking blue light issue is resolved.
6. Update PC BIOS
Outdated motherboard BIOS versions on your PC can also potentially lead to peripheral compatibility issues like a blinking blue screen.
Check your computer motherboard manufacturer’s website for the latest BIOS update for your model and install it. This will update the firmware controlling your PC hardware.
After a BIOS update, reboot your PC and see if the monitor blinking is fixed.
7. Attempt Monitor Self-Test
Your Samsung monitor may have a built-in self-test mode you can use to check for hardware issues causing the blinking blue light problem.
Power off both the monitor and computer. Press and hold the monitor’s Menu button, then power on the display – continue holding the button down for 10-15 seconds.
This will initiate the monitor’s self-test procedure. If the screen shows solid colors it passes the test, but blinking colors indicate a hardware malfunction.
Getting stuck in self-test mode often confirms a monitor fault needing professional repair.
8. Contact Samsung Support
If all other troubleshooting steps fail to stop your Samsung monitor from blinking blue, the problem likely requires professional service.
You can contact Samsung Support online or by phone to arrange repairs for monitors still under warranty.
Typically, the monitor must be shipped to a Samsung service center for inspection and replacement of any faulty components.
Out-of-warranty monitors with a hardware defect can also be repaired, but you will have to pay the cost of replacement parts and labor fees.
Frequently Asked Questions
Ques 1: Why does my Samsung monitor keep blinking blue?
Ans: The most common causes for a Samsung monitor blinking blue repeatedly are loose video cable connections, outdated graphics drivers, incorrect monitor OSD settings, and hardware defects.
Ans: Check video cables, update graphics drivers, modify monitor settings, perform a monitor self-test, reset factory defaults, and contact Samsung Support for repairs if needed.
Ques 3: What does a solid blue light on a Samsung monitor mean?
Ans: A solid blue monitor power LED indicates the display is powered on and operating normally.
A blinking blue light signals a problem with the video feed or monitor hardware.
Ques 4: Can a faulty video cable cause a blinking blue screen?
Ans: Yes, a loose, damaged, or incompatible video cable can cause a blinking blue light issue on your monitor. Reseating connections or swapping cables can often resolve it.
Ques 5: Why won’t my Samsung monitor turn on blue light?
Ans: If the monitor’s blue power LED won’t turn on at all, it could mean the display is not receiving power.
Check connections to power outlet and press monitor power button. Also try a different power cable if possible.