The monitor on my Dell Inspiron 9300 has many vertical lines. Lines are multi-colored and are increasing daily. Is the only answer a new monitor? What started out as 1 vertical line on each side of the monitor has grown to about 30 lines in six months.
Unofortunatly your monitor is going going going and maybe gone. If you are still under warranty call Dell ASAP, but it turns out that this issue is very common. There have been lots of complaints of monitors only lasting as long as the warranty period.
The only real solution is to replace the LCD. It is any easy fix for a DIY project if you have a bit of time and patience, if you dont then you are looking at spending on anywhere from 200 - 500 on parts and labor.
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1.)A loose connection between either the graphics card and the computer mainboard or between the Graphics Card and the Computer Monitor.
2.)Your LCD monitor has become faulty and either needs to be repaired by a technician or replaced.
3.)Your graphics card need to be cleaned, clean the gold finger contact on the card.
However in my experience I would say that the monitor has become faulty, try this monitor on another computer and if it still displays vertical lines then you know that this is the case.
If your monitor works on another computer then I would say that your computer or Graphics card is having some troubles.
Overheating plays an important role here.
Have you unplugged the power cord to the LCD? Let it sit for a minute, then try it. ALWAYS buy a UPS and plug any computer devices into it. Doesn't have to be big, a $50 unit will protect it from dangerous voltage surges.
Connect an external monitor to the laptop and see if it also has the vertical lines. If the external monitor looks fine, then your laptop’s LCD display panel is bad. If the monitor has the vertical lines displayed on it, then your graphics card or motherboard is bad. Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience. Thank You.
Try connecting an external monitor to the Dell Inspiron 9300 and see if the vertical line is also present on the monitor. If the monitor display is fine, then your laptop’s LCD display panel is defective. If the monitor also displays the vertical line, then your problem is with either the video card or motherboard located inside your laptop. Not sure if the Compaq Presario has an external monitor plug, but if it does the above procedure can be applied to that one as well. Your responses are intended to improve the level of service provided. Please rate your experience. Thank You.