Red and green vertical lines appear when activating p.c.
Depending on the age of the monitor, it most likely will be Capacitors that are leaking. I have repaired many different brands of monitors and have seen problems very similar to yours. 99% of the repairs I do are capacitor Issues. It's well worth replacing them IF the screen is still in very good shape as far as brightness and contrast. most repair kits usually cost between 12 and 20 dollars.
Hope this helps!
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SOURCE: Vertical lines, colors not sharp, graphics fuzzy
could be the vga car4d problem, try to hook up with another pc if the problem remains then unfortunately the monitor is dying.
SOURCE: VERTICAL COLORED LINES ON MONITOR
Your panels are dying.
Well more to the point the driver tabs that run the panel are dying and are not going to be cheap to repair for either case.
For the stand alone LCD, it is cheaper to get another one.
For the laptop, find a laptop on Ebay or similar with a dead motherboard and swap out the screens, also gives you spare parts for the laptop. If you goto a repair shop and get a screen it will cost you as much as a new laptop.
SOURCE: Monitor: Compaq TFT5015 Displays vertical lines
Check that the signal cable from the computer is firmly connected and that there are no bent pins in either end. If the trouble continues, the problem is in the monitor itself. Given the low replacement cost, it's uneconomical to try repairing these.
SOURCE: red line on monitor of dell laptop
You may want to try another video cable. If that not it then you may want to open the OSD (On Screen Display) menu and see if it goes over that. If it dose you may have to get service from Viewsonic. If not then you may want to try the monitor on another computer to make sure its not traveling with the monitor.
SOURCE: Vertical red line on HP w2207 monitor
Please try to connect the monitor to another PC, if problem still exist then probably there's an internal problem in the circuit board of your monitor wherein an elecronic part/s might be cold soldered / defective. I recommend to bring the monitor to an authorized HP service center to fix the problem. If the monitor display is good if connected to other PC, then your previous PC should be checked if the VGA card (if there is any) is properly placed to its slot & working properly as well as it cables & connections. regards
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