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I ve hp zd8185EA and many colored lines are on my screen. i ve tested with an external monitor and on the external monitor is ok. i have problem with lcd or with the colour invert?
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Make sure that your video settings are correct for the resolution you want, including the number of bits. For high resolution set it to 32 bits. If the settings are ok....
1. Hook up an external monitor to the video connector.
2. If the colors are ok on the external monitor, you may have a bad LCD, or a bad motherboard.
Failing backlight in the LCD screen, or maybe a bad connection from the VGA card to the screen You can test this by using an external monitor, if that works, the screen is the problem, if however the problem stays the same, the issue is with the onboard graphics chip. Is this an HP laptop / compaq by any chance?
Test your laptop with an external monitor and find out if the external video goes bad too. If both, internal and external images go bad, you have a problem with the video card.
If external works fine and only internal goes bad, most likely it’s either bad video cable or LCD screen failure.
Connect an external monitor to your laptop. If the problem appears only on the display of the laptop and not on the external monitor (in the same time) that means the video card is ok and the problem could be: the screen of the laptop or the invertor or the cable that attaches the screen to the motherboard. If the problem appears on both screens, external and laptop, most probably the video card/motherboard is defective. Have it checked/repaired by a professional.
Does the horizontal line appear on the LCD screen on the laptop?
To check if the video card is faulty or the LCD screen connect an external monitor to the laptop's external video port, power up the external monitor first then bootup the laptop. The Windows will automatically switch to the external monitor if the video card is OK. If not then the fault could be the video cable cable/connector or the LCD screen.
Get back to me with the results of this test and I can advise further.
Could be faulty graphics chip or faulty screen. If you can hook up external monitor and picture is fine then probably faulty screen. If external monitor shows same problem the faulty graphics chip. Take to repair shop and let them have a look.
The easiest thing would be to check your cable for a bent or loose pin. Next put another external monitor on the laptop. The circuitry to provide video to the laptop screen and the external monitor are separate except that they share a video processor and video memory. There can be bad electronics involved.
Connect an external monitor to the laptop, power up the monitor first and then bootup the laptop. The Windows image will automatically divert to the external monitor. If the images is OK then the video card is OK. From the description of the fault, it indicates that the fault could be a faulty video cable or video connector. Try reseating the video cable/connector on the motherboard.
Get back to me if you still have problems together with any error messages etc.
hi there, sounds like you have a driver or internal video card problem...but first have u tried changing the screen size/resolution and color depth/quality in your display settings...
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