Question about Acer Extensa 4220-2148 Notebook
1. Check the cables for lose connection in the connectors.
2. Check if there are interferences of magnetic fields from other gadgets.Yes, check if near your laptop, you haven't placed speakers, florescent lights, cell phones, radios and any other electrical device.
3. Check if there were any changes in the display settings like when some computers are upgraded from their original versions. For instance, many laptops that have been upgraded from Windows 95 versions to higher versions, have shown problems of flickering due to poorly calibrated refresh rate.
4. Many a time, it may occur that the pixels on your LCD laptop screen/LCD Monitors are damaged in certain area and so you're unable to see proper images. If that is the case, then you don't have any other choice but to change the entire screen and replace it with a new one.
5.To check if there is no problem in your video card, connect another monitor to your laptop through the VGA port. If it shows any faint images or jumbled images, then the main reason for your laptop flickering screen is your video card.
6. if you don't find that there is any other problem you can detect, there must be problems within your computer monitor screen, otherwise It is advisable to go to your laptop service center and get the laptop checked. If you find that your laptop screen is still in warranty period and you find problems of flickering, it is best to get it changed.
Posted on Dec 29, 2010
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Posted on Jan 02, 2017
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