My monitor shows a line on the screen
Your monitor is well knowned brand. But there is a problem in your monitor. LCD stands for Liquid Crystal Display. Nowadays LCD and LED monitors having this kind of problems. Sometimes shaking monitor can solve this problem. You can shake your monitor from left side to right side . It might solve your problem. But not permanently. To repair it permanently you may consult your nearest computer service centres. If your monitor is new, you may have 3 years service warranty. You can give it to the stall from where you buy the monitor. The problem occurs for lack of colours in those areas. For this you are facing this problem. Do not worry! Your problem will solved in above mentioned way.
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My monitor shows a line on the screen
1st Thing is That You Should use The HDMI Plug For Your LCD Cause it Will Safe You From Any Risk !
For Now You Should Show the LCD Line to The LCD Mechanics Cause it Might Become Twice Or Thrice !