my computer display is not good as it was, during the computer is on , it sometimes automatically becomes good and some time again it shows the display problem , the computer works smoothly, i recentely updated the operating system but the problem is still the same, i am looking forward for the answer and hope that the answer will help me.
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"it sometimes automatically becomes good and some time again it shows the display problem"
Sometimes you don't have issues?
Are you using an analog(VGA) cable or digital from you computer to monitor? Detach and re-attach both ends of the cable and see if this helps.