Windows 10: Green horizontal line on the screen

I was connecting my laptop to a Smart TV Screen when a horizontal green line appeared on my laptop screen. No prior accident in my laptop happened. Can I troubleshoot anything on my laptop before I resort to screen replacement?

:)

 

Blue and green horizontal lines on laptop screen.

Hi Hoang,

In most cases, colored horizontal lines on the screen are an indication of hardware failure, particularly with the video and graphics card or the screen itself. The chances of this being software related may be very rare, so we'd like to ask you a few things
to better assess and isolate the situation and give you the most appropriate advice:

• Laptop model
• How old is your laptop/ How long have you been using it?
• Did you make any significant changes in your system before it happened? (e.g. installing software, changing settings, etc.)
• Do the colored lines also appear on the screen when you first turn it on (BIOS or boot startup) or does it only appear when you're logged in?
• Do you encounter any specific error messages when the screen freezes?

Here are some of the things you can do for basic troubleshooting and isolation:

• If you have a second monitor, try to connect it to your laptop and see if the lines still appear.
  
• Perform a hard reset on your laptop (press and hold the power button to turn it off then remove it from the power supply). This will clear all the residual power that may have accumulated during use.
• If you installed new software before the issue began, we suggest uninstalling them (if possible) to see if it makes any difference.

Don't hesitate to get back to us with relevant information if you need further assistance.

 

horizontal black line on screen

Without you having posted a screenshot of it, it may point to either corrupted graphics drivers or a possible failing hardware part.

We don't know if the horizontal black line is at the top, bottom, middle or where on the screen or the thickness of it or anything else about it.

Hi

the line is fine, straight, black, horizontal, black and about 6cm long. It is situated 3cm from the bottom of the screen, and just to the right of centre. I have tried to take a screen shot of it but when I paste to Word it does not appear on the image.

 

Dual Screen horizontal lines and tearing.


Hello All

I have a dual screen setup, with my desktop extended to a second monitor. A week or so after updating windows 10 with the creators update my dual screen set up is experiencing a large horizontal line traveling up one of my displays with shaking below. I have attached an image.




This first happened on my primary display (29" Asus connect with display port). After rebooting the tearing then moved over to my secondary display where it has remained for the last week intermittently. (Samsung 22" connected with a VGA to DVI adapter). Both Monitors are connected to my ATI R9 270.

I have ruled out the display hardware as this issue goes away in safe mode. If I set my computer to only use one display either the 22" or 29", the issue is gone. I have also connected to another computer (mac book pro) and the tearing does not persist.

Other things I have tried:

• Reboot
• Shut down
• Pulled power cords from monitors and pc for 30 minutes
• Update graphics card driver
• Reinstall graphic card driver
• Try different connectors
• Uninstall display device in hardware manager

Any and all help is appreciated as this one is really driving my nuts!