Horizons green lines when background is white on top of screennitro 5 AN515-52

Alford Member Posts: 7


edited September 2022 in Nitro Gaming

Hi, recently I force shutdown my laptop when I was about to go to sleep because it was so laggy, but after I woke up in the morning there is a line on top of the screen, when in black color background it doesn't show up or nither in BIOS I really believe this is a software issue but I can't find which software has a problem I hope someone here will help me

She's a 2 year old nitro 5 AN515-52 not anymore under warranty, no history of being smashing or falling that can cause damage to the LCD


  • ragsak28
    ragsak28 Ally Posts: 677

    Hi @Alford

    You can try to reinstall the display drivers to check if that makes any difference.

    NOTE: Make sure to reboot the laptop after uninstalling the driver.

    Hope it will help you in some way.

  • Does this problem also occur in the bios?

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  • Alford
    Alford Member Posts: 7


    @egydiocoelho No it doesn't

  • billsey
    billsey ACE Posts: 31,110 Trailblazer

    If it doesn't show up in the BIOS then we know it's not likely to be a hardware issue. Rather it'll be something in Windows. Either a bad driver install or a configuration issue. As suggested start with removing the display drivers and allow them to reinstall on a reboot. If that doesn't work check the box to remove all files when uninstalling the drivers and install the drivers from the Acer support site.

    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • Alford
    Alford Member Posts: 7


    Hello again, I could not identify it now as a software or a hardware since the background in BIOS is black, the line camouflage in black, the lines changes color depending on the background color of my screen when its white the lines turns green when in dark colors the line is black

  • William_mk2
    William_mk2 Ally Posts: 3,867


    If you are facing any display issues on the bios screen then it is a hardware issue. You might have to contact a local tech.

    However, let us do the basic steps first..

    Doing the power drain and bios defaults will really help. Kindly follow the steps given below:

    Turn off the laptop. Disconnect or unplug the charger cable, devices or any other cables connected to your laptop. Close your laptop. Turn it upside down. On the bottom of the laptop, you can find a pin hole. It is a tiny hole. You can a find a battery symbol indicator next to the hole. It is like a + and – sign symbol as though somebody is trying to shift the battery out. Insert the pin on to the hole for 30 seconds. Remove the pin. Flip the laptop. Connect the charger cable, turn on the computer. Only on laptops where the battery is inbuilt you can find the battery reset hole on the back of laptop.

    If you don’t find a pin hole on the back of laptop then you might be using removable battery. There is no need to unscrew anything to remove the battery. Turn off the laptop. Disconnect or unplug the charger cable, devices and any other cables connected to your laptop. Close your laptop. Turn it upside down. On the bottom of the laptop, please look at the top or bottom depending on the way you look at it. You can find a long door. It is a battery removable door. Just below that you can find a latch. If you move the latch you can remove the battery door. Once the battery is removed, flip the laptop. Open the top cover, press and hold the power button for 1 minute. Connect the battery back on the back of computer. Connect the charger cable back and then turn on the computer. 


    If you don’t see a reset pin hole on the back of laptop or if you are not able to remove the battery (if it is inbuilt) then please unplug all the cables and devices out of laptop.  Hold the power button for 1 minute. After releasing the button you should wait a while before plugging in power. Just because the button has been pressed doesn’t bleed off all the residual electricity on the motherboard. Wait 15-30 minutes before plugging in power. Then once power is connected wait for a full battery indication before turning the system on. That allows the battery to fully reset it’s internal statistics.

    Connect all the cables back and restart the computer.  

    While turning on the computer, tap f2. It will go to bios. Press f9 once. It will show load bios defaults with a yes or no popup. Press enter. Popup screen will disappear. Press f10 once. It will show save changes popup with yes or no. Press enter. Computer will restart and it will load into windows.  


    It might also be the issue with battery, charger or power outlet.  Try to use the charger in a different room on a different power outlet. Try to bypass the surge protector and connect it directly to power outlet.  Try to use an alternative charger if possible.  Try to turn on the computer without the charger and check it ( as long as the battery is not drained out )  

    It should work fine.. 

    If the display is looking good in bios then it is a software issue.

    If it is a software issue try the following the steps..


    Try windows x 

    go to device manager 

    expand display adapter

    right click on display driver - uninstall 

    Restart the computer 

    It should work fine.. 

    If it is still not working 

    Uninstall the display adapter from device manager 

    Don’t restart the computer. 

    Go to support.acer.com 

    chose your country 

    type snid or chose your model 

    go to drivers 

    Install the display driver 


    It should work fine.. 

    If it is still not working and if the display is looking good in bios then you might have to reinstall windows..

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