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Monitor display problem - patches of flickering dash lines

I have a HP lcd monitor HPvs17e. About six months back, due to blank screen (cannot boot), the repairman changed my nvidia GeForce grahics card to GeForce 7100GS and everything was OK. About two months back, I started getting patches of short repetitive dashed lines on my monitor display. On white background, the dash lines are pink. On other backgrounds it is different colour - example, green. It's worse while viewing videos online.

I scan my hard drive with anti virus, anti-spyware, did a disk cleanup, defrag, registry clean, and even did a system restore to a date before the problem started but didn't help at all. I even took out the graphics card to brush clean; uninstall and re-install the graphics software.
I changed the monitor, also using another video signal cable and I still get the same problems. The lines are getting worse (more). Attached is a screen shot of the display (green dash lines). Anybody can tell me what the problem is please.
If graphics card need replacement, how do I choose the right graphics card to replace?
Many thanks.

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  • sam ang Aug 17, 2008

    Thank you for your information. Some time back I had tried installling the latest driver from nvidia and changing the resolution - has not helped. I am upset that the graphics card is not even one year old. I don't play online video games.

    I am not sure if I should buy the same type and get teh same problem later on. I read on a website about the option of updating the motherboard chipset drivers. I wonder if that would help.

  • sam ang Aug 18, 2008

    Really, Thank you again. I appreciate your time and knowledgeable advice. I am really impressed with your effort to help; it is quite rare.

    I'll have a look at the link you have given; and see if I understand or worth the time. I am not technically computer hardware or software savvy. I don't want ot mess up my PC and makes things worse. Already spent many, many hours over this problem. Maybe in the end, I'll just look for a compatible graphics card to replace and hope it works.

    Again, many, many thanks, Freetek!


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It does sound as if the graphics processor of the video card has died but I suggest downloading the lastest driver for that card on the off chance it is simply a software hiccough.

If, after installing an updated driver it is still there, you might try changing the resolution via the Control Panel/Display, to see if the anomalies change in dimensions but this won't cure anything, only confirm that the card is at fault.

These cards are, on the whole, pretty reliable but your luck sure hasn't been very good.

Posted on Aug 16, 2008

  • Steve Allison
    Steve Allison Aug 17, 2008

    > I read on a website about the option of updating the motherboard chipset drivers.

    I can't advise you on that since the system board may have been made by a non-HP supplier.

    A freeware utility called the Belarc Advisor delivers 4-5 PAGES of incredibly detailed information about the hardware and software of your system and even checks to see if you have all the latest tweaks to crummy MS Windows and lists those missing.

    Now that is something I can recommend :-)

    It should be able to identify the board manufacturer, a necessary step to check for downloads.

    BTW, I own thousands of bucks worth of excellent (older) HP test equipment but after trying to service a few HP-named systems, they are on my permanent blacklist.

    It took two new sets and the original 8-disk set to get enough usable disks/files together to reinstall the original software bundle. There were defective disks in the original set, then the 1st newly purchased ($80), then had to pay another $24 FedEx on the replacement set (#2).

    Not one of the three sets (24 CDs total) was 100% readable even in other systems.

    Good luck-


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Has anyone ever seen such? This is a screen shot of my wifes HP Laptop. Fresh driver, updated DX, hooked it to a monitor and sent this to a few friends much smarter than me on computers. Lot of trouble shooting by direction but no results yet. Anything would be greatly appreciated.

monitor display problem - patches of flickering da - 0403994.jpg

Posted on Dec 04, 2009

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